http://phynp6.phy-astr.gsu.edu/eRD14/api.php?action=feedcontributions&user=Ping&feedformat=atomEIC-eRD14 - User contributions [en]2024-03-29T12:33:41ZUser contributionsMediaWiki 1.26.2http://phynp6.phy-astr.gsu.edu/eRD14/index.php?title=2017&diff=28720172017-08-29T19:26:09Z<p>Ping: </p>
<hr />
<div>*[https://drive.google.com/file/d/0BxIaO15pRkZdbXp3MnozVDlJdUU/view Cheuk-Ping Wong, A novel modular ring imaging Cherenkov (mRICH) detector for experiments in the electron-ion collider, EIC Users Group Meeting 2017, Trieste, Italy.]</div>Pinghttp://phynp6.phy-astr.gsu.edu/eRD14/index.php?title=2017&diff=28620172017-08-29T19:25:48Z<p>Ping: Created page with "*[https://doi.org/10.1016/j.nima.2017.07.001 C.P. Wong et. al., Modular focusing ring imaging Cherenkov detector for electron-ion collider experiments, NIM A '''871''' (2017)..."</p>
<hr />
<div>*[https://doi.org/10.1016/j.nima.2017.07.001 C.P. Wong et. al., Modular focusing ring imaging Cherenkov detector for electron-ion collider experiments, NIM A '''871''' (2017) 13.]</div>Pinghttp://phynp6.phy-astr.gsu.edu/eRD14/index.php?title=Main_Page&diff=285Main Page2017-08-29T19:25:17Z<p>Ping: /* eRD14 Presentations */</p>
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== eRD14 Consortium: An integrated program for particle identification (PID) for a future Electron-Ion Collider (EIC) detector ==<br />
The EIC PID consortium (eRD14) has been formed to develop an integrated program for particle identification (PID) for a future Electron-Ion Collider (EIC) detector, for which excellent particle identification is an essential requirement. For instance, identification of the hadrons in the final state is needed for understanding how different quark flavors contribute to the properties of hadrons, and reliable identification of the scattered electron is important for covering kinematics where pion backgrounds are large. The PID systems also have the greatest overall impact on the layout of the central detector, and put important constraints on the magnetic field. It is thus essential to conduct the relevant R&D at an early stage of the development of a complete EIC detector. In addition to providing solutions addressing the broader EIC requirements, the PID consortium has worked closely with BNL and JLab to ensure that the specific R&D projects are compatible with the detector concepts that are being pursued there.<br />
<br />
<br />
To address the different requirement associated with the three different parts of the detector (ion-beam direction, electron-beam direction, and central region), the consortium is pursuing R&D on (and requesting funding for) three different technologies for imaging Cherenkov detectors: a dual-radiator (gas/aerogel) RICH for the hadron endcap, a high-performance DIRC for the barrel region, a modular aerogel RICH (mRICH) for the electron endcap (which could also be used in the hadron endcap in conjunction with a single-radiator gas RICH such as the one developed by eRD6). A 4π time-of-flight (TOF) coverage is also needed for PID in the momentum range below the Cherenkov threshold and for bunch identification (which is important for ring-ring colliders with a high repetition rate), for which the consortium has performed R&D on mRPC and MCP-PMT based TOF systems.<br />
<br />
=== Central Barrel===<br />
*[[High-Performance Detection of Internally Reflected Cherenkov Light (DIRC)]]<br />
=== Outgoing Hadron-Side Endcap ===<br />
*[[Dual Radiator Ring Imaging Cherenkov Detector (dRICH)]]<br />
<br />
=== Outgoing Electron-Side Endcap ===<br />
*[[Modular Ring Imaging Cherenkov Detector (mRICH)]]<br />
*[[e/π Cherenkov Detector for Lepton Identification]]<br />
<br />
=== Timing and Slow-Particle PID===<br />
*[[Time of Flight Detector (TOF)]]<br />
===Photosensors and Electronics===<br />
Sensor Requirements<br />
{| class="wikitable"<br />
|-<br />
! Parameter<br />
! DIRC<br />
! mRICH<br />
! dRICH<br />
|-<br />
| Gain<br />
| ~10^6<br />
| ~10^6<br />
| ~10^6<br />
|-<br />
| Timing Resolution<br />
| ≤ 100 ps<br />
| ≤ 800 ps<br />
| ≤ 800 ps<br />
|-<br />
| Pixel Size<br />
| 2-3 mm<br />
| ≤3 mm<br />
| ≤ 3 mm <br />
|-<br />
| Dark Noise<br />
| ≤ 1kHz/cm2<br />
| ≤ 5MHz/cm2<br />
| ≤ 5MHz/cm2<br />
|-<br />
| Radiation Hardness<br />
| Yes<br />
| Yes<br />
| Yes<br />
|-<br />
| Single-photon mode operation?<br />
| Yes<br />
| Yes<br />
| Yes<br />
|-<br />
| Magnetic-field immunity?<br />
| Yes (1.5–3 T)<br />
| Yes (1.5–3 T)<br />
| Yes (1.5–3 T)<br />
|-<br />
| Photon Detection Efficiency<br />
| ≥ 20%<br />
| ≥ 20%<br />
| ≥ 20%<br />
|}<br />
Note: The EIC radiation levels are expected to be comparable to the levels at current operations of RHIC. The exact level will vary depending on the exact readout location of each PID detector’s readout.<br />
<br />
*[[Photosensors]]<br />
*[[Electronics]]<br />
<br />
== [[People and Institutions]] ==<br />
<br />
== eRD14 Reports ==<br />
In this section, a collection of the eRD14 related documents which includes proposal, report, and presentation, are listed.<br />
<br />
=== 2016 ===<br />
*[[Media:eRD14_FY17_proposal.pdf | EIC PID (eRD14) Proposal FY17]]<br />
*[[Media:eRD14_progress_report_Dec_2016.pdf | EIC PID Progress Report Dec. 2016]]<br />
*[https://wiki.bnl.gov/conferences/index.php/Reports-July2016 All eRD FY17 Proposal/Reports and Committee Comments]<br />
<br />
=== [[2015]] ===<br />
<br />
=== [[2014]] ===<br />
<br />
=== [[Prior to 2014]] ===<br />
<br />
== eRD14 Presentations ==<br />
===[[2017]]===<br />
===[[2016]]===<br />
<br />
===[[2015]]===<br />
<br />
===[[2014]]===<br />
<br />
===[[Prior to 2014]]===</div>Pinghttp://phynp6.phy-astr.gsu.edu/eRD14/index.php?title=Modular_Ring_Imaging_Cherenkov_Detector_(mRICH)&diff=273Modular Ring Imaging Cherenkov Detector (mRICH)2017-07-12T19:11:41Z<p>Ping: </p>
<hr />
<div>The goal of the modular aerogel RICH (mRICH) is to provide hadronic PID capability with momentum coverage from 3 to 10 GeV/c with a compact design in order to overcome the space limitations of the EIC experiments. Although the multi-layer proximity-focusing RICH design, such as ARICH at BELLE2, can achieve three-sigma K/&pi; separation at 4 GeV/c, a larger expansion volume is required for PID in higher momentum range.<br />
<br />
A multi-layer proximity-focusing RICH design increases PID separation power by increasing number of detected photons (Nγ) by adding successive layers of radiator while keeping the uncertainty of Cherenkov angle (&sigma;_&theta;) of single photon measurement. In contrast, the novel lens-based mRICH design improves the separation power by minimizing the uncertainty &sigma;_&theta; as a result of lens focusing, and requires a smaller coverage of the photosensor plane. <br />
<br />
=Detector Design=<br />
Modular RICH detector consist of a block of aerogel as a radiator, a Fresnel lens, a set of four-sided mirror, and a sensor plane. When charged particle passes through the aerogel, it will emit Cherenkov photons in a cone shape. These Cherenkov photons will be focused by the Fresnel lens on the sensor plane, and form a shape ring image.<br />
<br />
{|<br />
|-<br />
| [[image: Detector overview1.png |left|400px|Single 9 GeV/c pion simulation]]<br />
| [[image:Detector overview 9GeVPi center.png|left|420px|Single 9 GeV/c pion simulation]]<br />
|-<br />
| Figure 1.1 (a). Modular RICH detector in GEMC simulation<br />
| Figure 1.1 (b). Single 9 GeV/c pion simulation<br />
|}<br />
<br />
There are two advantages of the lens-based design. Firstly, the ring image is smaller and thinner because of the focusing of lens (see figure 1.2 and 1.3). Secondly, in the case that charged particle travelling parallel but off the longitudinal axis (that is, the optical principal of lens), ring image will be shifted to the central area of the sensor plane (see figure 1.4 and 1.5). Therefore, the lens-based design enhances detector PID performance, while lowers the required sensor plane area per ring.<br />
<br />
{|<br />
|-<br />
| [[image: LensFocusing withLens.png |left|800px]]<br />
|-<br />
| Figure 1.2. Lens focusing gives thinner Cherenkov ring image compare to BELLE-2 ARICH design (below)<br />
|-<br />
| [[image: BELLE2 ARICH Focusing.png |left|800px]]<br />
|-<br />
| Figure 1.3. BELL-2 ARICH design a double layer proximity focusing RICH detector. By using two different refractive indices aerogel block, in order to increase number of photons detected while keeping uncertainty of single photon measurement.<br />
|}<br />
<br />
{|<br />
|-<br />
| [[image:LensShifting withLens.png |left|800px]]<br />
|-<br />
| Figure 1.4. When the charge particle incident along the z-axis of the detector, Cherenkov ring image from the incident particle will be shifted to the central area of the sensor plane, resulting fewer photon loss, and reduce image distortion.<br />
|-<br />
| [[image: BELLE2 ARICH Shifting.png |left|800px]]<br />
|-<br />
| Figure 1.5. Cherenkov ring image from particles that are incident at the third quadrant of the detector.<br />
|}<br />
<br />
=Fisrt Prototype and Beam Test=<br />
'''First Prototype'''<br />
{|<br />
|-<br />
| [[image: Prototype.png |center|600px|First mRICH prototype]]<br />
|-<br />
| Figure 2.1. First mRICH prototype<br />
|}<br />
<br />
{| class="wikitable"<br />
|-<br />
! Component<br />
! Property<br />
|-<br />
| Detector holder box<br />
| acrylic<br />
|-<br />
| Aerogel<br />
| refractive index=1.03<br />
|-<br />
| Fresnel lens<br />
| spheric acrylic Fresnel lens. focal length=3"<br />
|-<br />
| Mirror set<br />
| <br />
|-<br />
| Sensor<br />
| HAMAMATSU 8500 PMT array. Pixel size=6&times;6mm<br />
|-<br />
|}<br />
<br />
'''First Beam Test'''<br />
<br />
Beam test set up at Fermilab Test Beam Mtest Facility for the first modular RICH prototype detector is shown in the picture below. The detector (black box) sit at the center of a aluminium frame. On both ends of the aluminium frame are hodoscopes. Each hodoscopes consist of four horizon finger-size (1cm x 1cm) scintillators, and four vertical finger-size scintillators. On the far right of the aluminium frame was trigger paddle. The beam was coming from right to left of the picture.<br />
<br />
{|<br />
|-<br />
| [[image:BeamTestSetup2.png|left|500px]]<br />
|-<br />
| Figure 3.1. Beam test set up at Fermilab Test Beam Mtest Facility for the first modular RICH prototype detector.<br />
|}<br />
<br />
Accumulated hit maps from test beam data (right) and simulation (left) are shown in figure (3.2) and (3.3).<br />
{|<br />
|-<br />
| [[image:MRICH run70 n103 accumulatedDisplay.png|400px]] [[image:MRICH simulation run70 hitMap.png|400px]]<br />
|-<br />
| Figure 3.2. Test beam (left) and simulation (right) results from 120 GeV/c proton beam hit perpendicularly at the center of detector xy plane<br />
|-<br />
| [[image:MRICH run88 n103 accumulatedDisplay.png|400px]] [[image:MRICH simulation run88 hitMap.png|400px]]<br />
|-<br />
| Figure 3.3. Test beam (left) and simulation (right) results from 120 GeV/c proton beam hit perpendicularly at the 3rd quadrant of detector xy plane.<br />
|}<br />
<br />
=Second Prototype=<br />
'''Optimized Detector Design'''<br />
<br />
In order to enhance detector PID performance, the next mRICH prototype will use a longer focal length (6") Fresnel lens, and smaller pixel size (3mm &times; 3mm) photon sensors. Furthermore, the readout electronics will be separated from the optical components to avoid overheating.<br />
{|<br />
|-<br />
| [[image:Prototype2drawing.png|400px]] [[image:Prototype2pic.png|700px]]<br />
|-<br />
| Figure 3.1. (left) 3D drawing of the second mRICH prototype. (right) construction of the second mRICH prototype.<br />
|}<br />
<br />
{| class="wikitable"<br />
|-<br />
! Component<br />
! Property<br />
|-<br />
| Detector holder box<br />
| Aluminum<br />
|-<br />
| Aerogel<br />
| refractive index=1.03<br />
|-<br />
| Fresnel lens<br />
| spheric acrylic Fresnel lens. focal length=6"<br />
|-<br />
| Mirror set<br />
| <br />
|-<br />
| Sensor<br />
| HAMAMATSU 13700 PMT array. Pixel size=3&times;3mm<br />
|-<br />
|}<br />
<br />
'''Projected Detector Performance of Next mRICH Prototype'''<br />
{|<br />
|-<br />
| [[image:Num sigma 6inFocalLength.png|500px]][[image:MRICH e pi separation.png|450px]]<br />
|-<br />
| Figure 3.2. (Right) Projected K/pi separation power of modular RICH detector obtained from simulation using 6" focal length Fresnel lens with different pixel size photon sensors. K/pi separation power of second mRICH prototype is shown in green dots. (Left) Projected e/pi separation power of second modular RICH prototype. These plots indicates that with the second prototype design, the mRICH prototype can acheive 3-sigma of K/pi separation and e/pi separation up to 8 GeV/c and 2 GeV/c, respectively.<br />
|}<br />
<br />
=mRICH Detector System Simulation=<br />
*mRICH detector system in sPHENIX/ePHENIX. The detector system which contains 284 modules of mRICH, covers 1.0 to 2.0 rapidity.<br />
*:[[image: MRICH in ePHENIX.png |center|400px|mRICH in ePHENIX]]<br />
*:Event display of 10 negative pion tracks (view from down stream) from simulation. An enlarged view is shown on the left.<br />
*:[[image: MRICHsystem ePHENIX.png|center|400px|mRICH system in ePHENIX]]<br />
*mRICH detector system in JLEIC.<br />
*:[[image: MRICH in JLEIC.png |center|350px|mRICH in JLEIC]]</div>Pinghttp://phynp6.phy-astr.gsu.edu/eRD14/index.php?title=Modular_Ring_Imaging_Cherenkov_Detector_(mRICH)&diff=272Modular Ring Imaging Cherenkov Detector (mRICH)2017-07-12T18:47:15Z<p>Ping: /* Second Prototype */</p>
<hr />
<div>The goal of the modular aerogel RICH (mRICH) is to provide hadronic PID capability with momentum coverage from 3 to 10 GeV/c with a compact design in order to overcome the space limitations of the EIC experiments. Although the multi-layer proximity-focusing RICH design, such as ARICH at BELLE2, can achieve three-sigma K/&pi; separation at 4 GeV/c, a larger expansion volume is required for PID in higher momentum range.<br />
<br />
A multi-layer proximity-focusing RICH design increases PID separation power by increasing number of detected photons (Nγ) by adding successive layers of radiator while keeping the uncertainty of Cherenkov angle (&sigma;_&theta;) of single photon measurement. In contrast, the novel lens-based mRICH design improves the separation power by minimizing the uncertainty &sigma;_&theta; as a result of lens focusing, as shown in Figure 2.3.1 (right), which also requires a smaller coverage of the photosensor plane. <br />
<br />
=Detector Design=<br />
Modular RICH detector consist of a block of aerogel as a radiator, a Fresnel lens, a set of four-sided mirror, and a sensor plane. When charged particle passes through the aerogel, it will emit Cherenkov photons in a cone shape. These Cherenkov photons will be focused by the Fresnel lens on the sensor plane, and form a shape ring image.<br />
<br />
{|<br />
|-<br />
| [[image: Detector overview1.png |left|400px|Single 9 GeV/c pion simulation]]<br />
| [[image:Detector overview 9GeVPi center.png|left|420px|Single 9 GeV/c pion simulation]]<br />
|-<br />
| Figure 1.1 (a). Modular RICH detector in GEMC simulation<br />
| Figure 1.1 (b). Single 9 GeV/c pion simulation<br />
|}<br />
<br />
There are two advantages of the lens-based design. Firstly, the ring image is smaller and thinner because of the focusing of lens (see figure 1.2 and 1.3). Secondly, in the case that charged particle travelling parallel but off the longitudinal axis (that is, the optical principal of lens), ring image will be shifted to the central area of the sensor plane (see figure 1.4 and 1.5). Therefore, the lens-based design enhances detector PID performance, while lowers the required sensor plane area per ring.<br />
<br />
{|<br />
|-<br />
| [[image: LensFocusing withLens.png |left|800px]]<br />
|-<br />
| Figure 1.2. Lens focusing gives thinner Cherenkov ring image compare to BELLE-2 ARICH design (below)<br />
|-<br />
| [[image: BELLE2 ARICH Focusing.png |left|800px]]<br />
|-<br />
| Figure 1.3. BELL-2 ARICH design a double layer proximity focusing RICH detector. By using two different refractive indices aerogel block, in order to increase number of photons detected while keeping uncertainty of single photon measurement.<br />
|}<br />
<br />
{|<br />
|-<br />
| [[image:LensShifting withLens.png |left|800px]]<br />
|-<br />
| Figure 1.4. When the charge particle incident along the z-axis of the detector, Cherenkov ring image from the incident particle will be shifted to the central area of the sensor plane, resulting fewer photon loss, and reduce image distortion.<br />
|-<br />
| [[image: BELLE2 ARICH Shifting.png |left|800px]]<br />
|-<br />
| Figure 1.5. Cherenkov ring image from particles that are incident at the third quadrant of the detector.<br />
|}<br />
<br />
=Fisrt Prototype and Beam Test=<br />
'''First Prototype'''<br />
{|<br />
|-<br />
| [[image: Prototype.png |center|600px|First mRICH prototype]]<br />
|-<br />
| Figure 2.1. First mRICH prototype<br />
|}<br />
<br />
{| class="wikitable"<br />
|-<br />
! Component<br />
! Property<br />
|-<br />
| Detector holder box<br />
| acrylic<br />
|-<br />
| Aerogel<br />
| refractive index=1.03<br />
|-<br />
| Fresnel lens<br />
| spheric acrylic Fresnel lens. focal length=3"<br />
|-<br />
| Mirror set<br />
| <br />
|-<br />
| Sensor<br />
| HAMAMATSU 8500 PMT array. Pixel size=6&times;6mm<br />
|-<br />
|}<br />
<br />
'''First Beam Test'''<br />
<br />
Beam test set up at Fermilab Test Beam Mtest Facility for the first modular RICH prototype detector is shown in the picture below. The detector (black box) sit at the center of a aluminium frame. On both ends of the aluminium frame are hodoscopes. Each hodoscopes consist of four horizon finger-size (1cm x 1cm) scintillators, and four vertical finger-size scintillators. On the far right of the aluminium frame was trigger paddle. The beam was coming from right to left of the picture.<br />
<br />
{|<br />
|-<br />
| [[image:BeamTestSetup2.png|left|500px]]<br />
|-<br />
| Figure 3.1. Beam test set up at Fermilab Test Beam Mtest Facility for the first modular RICH prototype detector.<br />
|}<br />
<br />
Accumulated hit maps from test beam data (right) and simulation (left) are shown in figure (3.2) and (3.3).<br />
{|<br />
|-<br />
| [[image:MRICH run70 n103 accumulatedDisplay.png|400px]] [[image:MRICH simulation run70 hitMap.png|400px]]<br />
|-<br />
| Figure 3.2. Test beam (left) and simulation (right) results from 120 GeV/c proton beam hit perpendicularly at the center of detector xy plane<br />
|-<br />
| [[image:MRICH run88 n103 accumulatedDisplay.png|400px]] [[image:MRICH simulation run88 hitMap.png|400px]]<br />
|-<br />
| Figure 3.3. Test beam (left) and simulation (right) results from 120 GeV/c proton beam hit perpendicularly at the 3rd quadrant of detector xy plane.<br />
|}<br />
<br />
=Second Prototype=<br />
'''Optimized Detector Design'''<br />
<br />
In order to enhance detector PID performance, the next mRICH prototype will use a longer focal length (6") Fresnel lens, and smaller pixel size (3mm &times; 3mm) photon sensors. Furthermore, the readout electronics will be separated from the optical components to avoid overheating.<br />
{|<br />
|-<br />
| [[image:Prototype2drawing.png|400px]] [[image:Prototype2pic.png|700px]]<br />
|-<br />
| Figure 3.1. (left) 3D drawing of the second mRICH prototype. (right) construction of the second mRICH prototype.<br />
|}<br />
<br />
{| class="wikitable"<br />
|-<br />
! Component<br />
! Property<br />
|-<br />
| Detector holder box<br />
| Aluminum<br />
|-<br />
| Aerogel<br />
| refractive index=1.03<br />
|-<br />
| Fresnel lens<br />
| spheric acrylic Fresnel lens. focal length=6"<br />
|-<br />
| Mirror set<br />
| <br />
|-<br />
| Sensor<br />
| HAMAMATSU 13700 PMT array. Pixel size=3&times;3mm<br />
|-<br />
|}<br />
<br />
'''Projected Detector Performance of Next mRICH Prototype'''<br />
{|<br />
|-<br />
| [[image:Num sigma 6inFocalLength.png|500px]][[image:MRICH e pi separation.png|450px]]<br />
|-<br />
| Figure 3.2. (Right) Projected K/pi separation power of modular RICH detector obtained from simulation using 6" focal length Fresnel lens with different pixel size photon sensors. K/pi separation power of second mRICH prototype is shown in green dots. (Left) Projected e/pi separation power of second modular RICH prototype. These plots indicates that with the second prototype design, the mRICH prototype can acheive 3-sigma of K/pi separation and e/pi separation up to 8 GeV/c and 2 GeV/c, respectively.<br />
|}<br />
<br />
=mRICH Detector System Simulation=<br />
*mRICH detector system in sPHENIX/ePHENIX. The detector system which contains 284 modules of mRICH, covers 1.0 to 2.0 rapidity.<br />
*:[[image: MRICH in ePHENIX.png |center|400px|mRICH in ePHENIX]]<br />
*:Event display of 10 negative pion tracks (view from down stream) from simulation. An enlarged view is shown on the left.<br />
*:[[image: MRICHsystem ePHENIX.png|center|400px|mRICH system in ePHENIX]]<br />
*mRICH detector system in JLEIC.<br />
*:[[image: MRICH in JLEIC.png |center|350px|mRICH in JLEIC]]</div>Pinghttp://phynp6.phy-astr.gsu.edu/eRD14/index.php?title=Modular_Ring_Imaging_Cherenkov_Detector_(mRICH)&diff=271Modular Ring Imaging Cherenkov Detector (mRICH)2017-07-12T18:46:50Z<p>Ping: /* Second Prototype */</p>
<hr />
<div>The goal of the modular aerogel RICH (mRICH) is to provide hadronic PID capability with momentum coverage from 3 to 10 GeV/c with a compact design in order to overcome the space limitations of the EIC experiments. Although the multi-layer proximity-focusing RICH design, such as ARICH at BELLE2, can achieve three-sigma K/&pi; separation at 4 GeV/c, a larger expansion volume is required for PID in higher momentum range.<br />
<br />
A multi-layer proximity-focusing RICH design increases PID separation power by increasing number of detected photons (Nγ) by adding successive layers of radiator while keeping the uncertainty of Cherenkov angle (&sigma;_&theta;) of single photon measurement. In contrast, the novel lens-based mRICH design improves the separation power by minimizing the uncertainty &sigma;_&theta; as a result of lens focusing, as shown in Figure 2.3.1 (right), which also requires a smaller coverage of the photosensor plane. <br />
<br />
=Detector Design=<br />
Modular RICH detector consist of a block of aerogel as a radiator, a Fresnel lens, a set of four-sided mirror, and a sensor plane. When charged particle passes through the aerogel, it will emit Cherenkov photons in a cone shape. These Cherenkov photons will be focused by the Fresnel lens on the sensor plane, and form a shape ring image.<br />
<br />
{|<br />
|-<br />
| [[image: Detector overview1.png |left|400px|Single 9 GeV/c pion simulation]]<br />
| [[image:Detector overview 9GeVPi center.png|left|420px|Single 9 GeV/c pion simulation]]<br />
|-<br />
| Figure 1.1 (a). Modular RICH detector in GEMC simulation<br />
| Figure 1.1 (b). Single 9 GeV/c pion simulation<br />
|}<br />
<br />
There are two advantages of the lens-based design. Firstly, the ring image is smaller and thinner because of the focusing of lens (see figure 1.2 and 1.3). Secondly, in the case that charged particle travelling parallel but off the longitudinal axis (that is, the optical principal of lens), ring image will be shifted to the central area of the sensor plane (see figure 1.4 and 1.5). Therefore, the lens-based design enhances detector PID performance, while lowers the required sensor plane area per ring.<br />
<br />
{|<br />
|-<br />
| [[image: LensFocusing withLens.png |left|800px]]<br />
|-<br />
| Figure 1.2. Lens focusing gives thinner Cherenkov ring image compare to BELLE-2 ARICH design (below)<br />
|-<br />
| [[image: BELLE2 ARICH Focusing.png |left|800px]]<br />
|-<br />
| Figure 1.3. BELL-2 ARICH design a double layer proximity focusing RICH detector. By using two different refractive indices aerogel block, in order to increase number of photons detected while keeping uncertainty of single photon measurement.<br />
|}<br />
<br />
{|<br />
|-<br />
| [[image:LensShifting withLens.png |left|800px]]<br />
|-<br />
| Figure 1.4. When the charge particle incident along the z-axis of the detector, Cherenkov ring image from the incident particle will be shifted to the central area of the sensor plane, resulting fewer photon loss, and reduce image distortion.<br />
|-<br />
| [[image: BELLE2 ARICH Shifting.png |left|800px]]<br />
|-<br />
| Figure 1.5. Cherenkov ring image from particles that are incident at the third quadrant of the detector.<br />
|}<br />
<br />
=Fisrt Prototype and Beam Test=<br />
'''First Prototype'''<br />
{|<br />
|-<br />
| [[image: Prototype.png |center|600px|First mRICH prototype]]<br />
|-<br />
| Figure 2.1. First mRICH prototype<br />
|}<br />
<br />
{| class="wikitable"<br />
|-<br />
! Component<br />
! Property<br />
|-<br />
| Detector holder box<br />
| acrylic<br />
|-<br />
| Aerogel<br />
| refractive index=1.03<br />
|-<br />
| Fresnel lens<br />
| spheric acrylic Fresnel lens. focal length=3"<br />
|-<br />
| Mirror set<br />
| <br />
|-<br />
| Sensor<br />
| HAMAMATSU 8500 PMT array. Pixel size=6&times;6mm<br />
|-<br />
|}<br />
<br />
'''First Beam Test'''<br />
<br />
Beam test set up at Fermilab Test Beam Mtest Facility for the first modular RICH prototype detector is shown in the picture below. The detector (black box) sit at the center of a aluminium frame. On both ends of the aluminium frame are hodoscopes. Each hodoscopes consist of four horizon finger-size (1cm x 1cm) scintillators, and four vertical finger-size scintillators. On the far right of the aluminium frame was trigger paddle. The beam was coming from right to left of the picture.<br />
<br />
{|<br />
|-<br />
| [[image:BeamTestSetup2.png|left|500px]]<br />
|-<br />
| Figure 3.1. Beam test set up at Fermilab Test Beam Mtest Facility for the first modular RICH prototype detector.<br />
|}<br />
<br />
Accumulated hit maps from test beam data (right) and simulation (left) are shown in figure (3.2) and (3.3).<br />
{|<br />
|-<br />
| [[image:MRICH run70 n103 accumulatedDisplay.png|400px]] [[image:MRICH simulation run70 hitMap.png|400px]]<br />
|-<br />
| Figure 3.2. Test beam (left) and simulation (right) results from 120 GeV/c proton beam hit perpendicularly at the center of detector xy plane<br />
|-<br />
| [[image:MRICH run88 n103 accumulatedDisplay.png|400px]] [[image:MRICH simulation run88 hitMap.png|400px]]<br />
|-<br />
| Figure 3.3. Test beam (left) and simulation (right) results from 120 GeV/c proton beam hit perpendicularly at the 3rd quadrant of detector xy plane.<br />
|}<br />
<br />
=Second Prototype=<br />
'''Optimized Second Prototype'''<br />
<br />
In order to enhance detector PID performance, the next mRICH prototype will use a longer focal length (6") Fresnel lens, and smaller pixel size (3mm &times; 3mm) photon sensors. Furthermore, the readout electronics will be separated from the optical components to avoid overheating.<br />
{|<br />
|-<br />
| [[image:Prototype2drawing.png|400px]] [[image:Prototype2pic.png|700px]]<br />
|-<br />
| Figure 3.1. (left) 3D drawing of the second mRICH prototype. (right) construction of the second mRICH prototype.<br />
|}<br />
<br />
{| class="wikitable"<br />
|-<br />
! Component<br />
! Property<br />
|-<br />
| Detector holder box<br />
| Aluminum<br />
|-<br />
| Aerogel<br />
| refractive index=1.03<br />
|-<br />
| Fresnel lens<br />
| spheric acrylic Fresnel lens. focal length=6"<br />
|-<br />
| Mirror set<br />
| <br />
|-<br />
| Sensor<br />
| HAMAMATSU 13700 PMT array. Pixel size=3&times;3mm<br />
|-<br />
|}<br />
<br />
'''Projected Detector Performance of Next mRICH Prototype'''<br />
{|<br />
|-<br />
| [[image:Num sigma 6inFocalLength.png|500px]][[image:MRICH e pi separation.png|450px]]<br />
|-<br />
| Figure 3.2. (Right) Projected K/pi separation power of modular RICH detector obtained from simulation using 6" focal length Fresnel lens with different pixel size photon sensors. K/pi separation power of second mRICH prototype is shown in green dots. (Left) Projected e/pi separation power of second modular RICH prototype. These plots indicates that with the second prototype design, the mRICH prototype can acheive 3-sigma of K/pi separation and e/pi separation up to 8 GeV/c and 2 GeV/c, respectively.<br />
|}<br />
<br />
=mRICH Detector System Simulation=<br />
*mRICH detector system in sPHENIX/ePHENIX. The detector system which contains 284 modules of mRICH, covers 1.0 to 2.0 rapidity.<br />
*:[[image: MRICH in ePHENIX.png |center|400px|mRICH in ePHENIX]]<br />
*:Event display of 10 negative pion tracks (view from down stream) from simulation. An enlarged view is shown on the left.<br />
*:[[image: MRICHsystem ePHENIX.png|center|400px|mRICH system in ePHENIX]]<br />
*mRICH detector system in JLEIC.<br />
*:[[image: MRICH in JLEIC.png |center|350px|mRICH in JLEIC]]</div>Pinghttp://phynp6.phy-astr.gsu.edu/eRD14/index.php?title=Modular_Ring_Imaging_Cherenkov_Detector_(mRICH)&diff=270Modular Ring Imaging Cherenkov Detector (mRICH)2017-07-12T18:45:31Z<p>Ping: /* Second Prototype */</p>
<hr />
<div>The goal of the modular aerogel RICH (mRICH) is to provide hadronic PID capability with momentum coverage from 3 to 10 GeV/c with a compact design in order to overcome the space limitations of the EIC experiments. Although the multi-layer proximity-focusing RICH design, such as ARICH at BELLE2, can achieve three-sigma K/&pi; separation at 4 GeV/c, a larger expansion volume is required for PID in higher momentum range.<br />
<br />
A multi-layer proximity-focusing RICH design increases PID separation power by increasing number of detected photons (Nγ) by adding successive layers of radiator while keeping the uncertainty of Cherenkov angle (&sigma;_&theta;) of single photon measurement. In contrast, the novel lens-based mRICH design improves the separation power by minimizing the uncertainty &sigma;_&theta; as a result of lens focusing, as shown in Figure 2.3.1 (right), which also requires a smaller coverage of the photosensor plane. <br />
<br />
=Detector Design=<br />
Modular RICH detector consist of a block of aerogel as a radiator, a Fresnel lens, a set of four-sided mirror, and a sensor plane. When charged particle passes through the aerogel, it will emit Cherenkov photons in a cone shape. These Cherenkov photons will be focused by the Fresnel lens on the sensor plane, and form a shape ring image.<br />
<br />
{|<br />
|-<br />
| [[image: Detector overview1.png |left|400px|Single 9 GeV/c pion simulation]]<br />
| [[image:Detector overview 9GeVPi center.png|left|420px|Single 9 GeV/c pion simulation]]<br />
|-<br />
| Figure 1.1 (a). Modular RICH detector in GEMC simulation<br />
| Figure 1.1 (b). Single 9 GeV/c pion simulation<br />
|}<br />
<br />
There are two advantages of the lens-based design. Firstly, the ring image is smaller and thinner because of the focusing of lens (see figure 1.2 and 1.3). Secondly, in the case that charged particle travelling parallel but off the longitudinal axis (that is, the optical principal of lens), ring image will be shifted to the central area of the sensor plane (see figure 1.4 and 1.5). Therefore, the lens-based design enhances detector PID performance, while lowers the required sensor plane area per ring.<br />
<br />
{|<br />
|-<br />
| [[image: LensFocusing withLens.png |left|800px]]<br />
|-<br />
| Figure 1.2. Lens focusing gives thinner Cherenkov ring image compare to BELLE-2 ARICH design (below)<br />
|-<br />
| [[image: BELLE2 ARICH Focusing.png |left|800px]]<br />
|-<br />
| Figure 1.3. BELL-2 ARICH design a double layer proximity focusing RICH detector. By using two different refractive indices aerogel block, in order to increase number of photons detected while keeping uncertainty of single photon measurement.<br />
|}<br />
<br />
{|<br />
|-<br />
| [[image:LensShifting withLens.png |left|800px]]<br />
|-<br />
| Figure 1.4. When the charge particle incident along the z-axis of the detector, Cherenkov ring image from the incident particle will be shifted to the central area of the sensor plane, resulting fewer photon loss, and reduce image distortion.<br />
|-<br />
| [[image: BELLE2 ARICH Shifting.png |left|800px]]<br />
|-<br />
| Figure 1.5. Cherenkov ring image from particles that are incident at the third quadrant of the detector.<br />
|}<br />
<br />
=Fisrt Prototype and Beam Test=<br />
'''First Prototype'''<br />
{|<br />
|-<br />
| [[image: Prototype.png |center|600px|First mRICH prototype]]<br />
|-<br />
| Figure 2.1. First mRICH prototype<br />
|}<br />
<br />
{| class="wikitable"<br />
|-<br />
! Component<br />
! Property<br />
|-<br />
| Detector holder box<br />
| acrylic<br />
|-<br />
| Aerogel<br />
| refractive index=1.03<br />
|-<br />
| Fresnel lens<br />
| spheric acrylic Fresnel lens. focal length=3"<br />
|-<br />
| Mirror set<br />
| <br />
|-<br />
| Sensor<br />
| HAMAMATSU 8500 PMT array. Pixel size=6&times;6mm<br />
|-<br />
|}<br />
<br />
'''First Beam Test'''<br />
<br />
Beam test set up at Fermilab Test Beam Mtest Facility for the first modular RICH prototype detector is shown in the picture below. The detector (black box) sit at the center of a aluminium frame. On both ends of the aluminium frame are hodoscopes. Each hodoscopes consist of four horizon finger-size (1cm x 1cm) scintillators, and four vertical finger-size scintillators. On the far right of the aluminium frame was trigger paddle. The beam was coming from right to left of the picture.<br />
<br />
{|<br />
|-<br />
| [[image:BeamTestSetup2.png|left|500px]]<br />
|-<br />
| Figure 3.1. Beam test set up at Fermilab Test Beam Mtest Facility for the first modular RICH prototype detector.<br />
|}<br />
<br />
Accumulated hit maps from test beam data (right) and simulation (left) are shown in figure (3.2) and (3.3).<br />
{|<br />
|-<br />
| [[image:MRICH run70 n103 accumulatedDisplay.png|400px]] [[image:MRICH simulation run70 hitMap.png|400px]]<br />
|-<br />
| Figure 3.2. Test beam (left) and simulation (right) results from 120 GeV/c proton beam hit perpendicularly at the center of detector xy plane<br />
|-<br />
| [[image:MRICH run88 n103 accumulatedDisplay.png|400px]] [[image:MRICH simulation run88 hitMap.png|400px]]<br />
|-<br />
| Figure 3.3. Test beam (left) and simulation (right) results from 120 GeV/c proton beam hit perpendicularly at the 3rd quadrant of detector xy plane.<br />
|}<br />
<br />
=Second Prototype=<br />
In order to enhance detector PID performance, the next mRICH prototype will use a longer focal length (6") Fresnel lens, and smaller pixel size (3mm &times; 3mm) photon sensors. Furthermore, the readout electronics will be separated from the optical components to avoid overheating.<br />
{|<br />
|-<br />
| [[image:Prototype2drawing.png|400px]] [[image:Prototype2pic.png|700px]]<br />
|-<br />
| Figure 3.1. (left) 3D drawing of the second mRICH prototype. (right) construction of the second mRICH prototype.<br />
|}<br />
<br />
{| class="wikitable"<br />
|-<br />
! Component<br />
! Property<br />
|-<br />
| Detector holder box<br />
| Aluminum<br />
|-<br />
| Aerogel<br />
| refractive index=1.03<br />
|-<br />
| Fresnel lens<br />
| spheric acrylic Fresnel lens. focal length=6"<br />
|-<br />
| Mirror set<br />
| <br />
|-<br />
| Sensor<br />
| HAMAMATSU 13700 PMT array. Pixel size=3&times;3mm<br />
|-<br />
|}<br />
<br />
{|<br />
|-<br />
| [[image:Num sigma 6inFocalLength.png|500px]][[image:MRICH e pi separation.png|450px]]<br />
|-<br />
| Figure 3.2. (Right) Projected K/pi separation power of modular RICH detector obtained from simulation using 6" focal length Fresnel lens with different pixel size photon sensors. K/pi separation power of second mRICH prototype is shown in green dots. (Left) Projected e/pi separation power of second modular RICH prototype. These plots indicates that with the second prototype design, the mRICH prototype can acheive 3-sigma of K/pi separation and e/pi separation up to 8 GeV/c and 2 GeV/c, respectively.<br />
|}<br />
<br />
=mRICH Detector System Simulation=<br />
*mRICH detector system in sPHENIX/ePHENIX. The detector system which contains 284 modules of mRICH, covers 1.0 to 2.0 rapidity.<br />
*:[[image: MRICH in ePHENIX.png |center|400px|mRICH in ePHENIX]]<br />
*:Event display of 10 negative pion tracks (view from down stream) from simulation. An enlarged view is shown on the left.<br />
*:[[image: MRICHsystem ePHENIX.png|center|400px|mRICH system in ePHENIX]]<br />
*mRICH detector system in JLEIC.<br />
*:[[image: MRICH in JLEIC.png |center|350px|mRICH in JLEIC]]</div>Pinghttp://phynp6.phy-astr.gsu.edu/eRD14/index.php?title=Modular_Ring_Imaging_Cherenkov_Detector_(mRICH)&diff=269Modular Ring Imaging Cherenkov Detector (mRICH)2017-07-12T18:43:49Z<p>Ping: /* Second Prototype */</p>
<hr />
<div>The goal of the modular aerogel RICH (mRICH) is to provide hadronic PID capability with momentum coverage from 3 to 10 GeV/c with a compact design in order to overcome the space limitations of the EIC experiments. Although the multi-layer proximity-focusing RICH design, such as ARICH at BELLE2, can achieve three-sigma K/&pi; separation at 4 GeV/c, a larger expansion volume is required for PID in higher momentum range.<br />
<br />
A multi-layer proximity-focusing RICH design increases PID separation power by increasing number of detected photons (Nγ) by adding successive layers of radiator while keeping the uncertainty of Cherenkov angle (&sigma;_&theta;) of single photon measurement. In contrast, the novel lens-based mRICH design improves the separation power by minimizing the uncertainty &sigma;_&theta; as a result of lens focusing, as shown in Figure 2.3.1 (right), which also requires a smaller coverage of the photosensor plane. <br />
<br />
=Detector Design=<br />
Modular RICH detector consist of a block of aerogel as a radiator, a Fresnel lens, a set of four-sided mirror, and a sensor plane. When charged particle passes through the aerogel, it will emit Cherenkov photons in a cone shape. These Cherenkov photons will be focused by the Fresnel lens on the sensor plane, and form a shape ring image.<br />
<br />
{|<br />
|-<br />
| [[image: Detector overview1.png |left|400px|Single 9 GeV/c pion simulation]]<br />
| [[image:Detector overview 9GeVPi center.png|left|420px|Single 9 GeV/c pion simulation]]<br />
|-<br />
| Figure 1.1 (a). Modular RICH detector in GEMC simulation<br />
| Figure 1.1 (b). Single 9 GeV/c pion simulation<br />
|}<br />
<br />
There are two advantages of the lens-based design. Firstly, the ring image is smaller and thinner because of the focusing of lens (see figure 1.2 and 1.3). Secondly, in the case that charged particle travelling parallel but off the longitudinal axis (that is, the optical principal of lens), ring image will be shifted to the central area of the sensor plane (see figure 1.4 and 1.5). Therefore, the lens-based design enhances detector PID performance, while lowers the required sensor plane area per ring.<br />
<br />
{|<br />
|-<br />
| [[image: LensFocusing withLens.png |left|800px]]<br />
|-<br />
| Figure 1.2. Lens focusing gives thinner Cherenkov ring image compare to BELLE-2 ARICH design (below)<br />
|-<br />
| [[image: BELLE2 ARICH Focusing.png |left|800px]]<br />
|-<br />
| Figure 1.3. BELL-2 ARICH design a double layer proximity focusing RICH detector. By using two different refractive indices aerogel block, in order to increase number of photons detected while keeping uncertainty of single photon measurement.<br />
|}<br />
<br />
{|<br />
|-<br />
| [[image:LensShifting withLens.png |left|800px]]<br />
|-<br />
| Figure 1.4. When the charge particle incident along the z-axis of the detector, Cherenkov ring image from the incident particle will be shifted to the central area of the sensor plane, resulting fewer photon loss, and reduce image distortion.<br />
|-<br />
| [[image: BELLE2 ARICH Shifting.png |left|800px]]<br />
|-<br />
| Figure 1.5. Cherenkov ring image from particles that are incident at the third quadrant of the detector.<br />
|}<br />
<br />
=Fisrt Prototype and Beam Test=<br />
'''First Prototype'''<br />
{|<br />
|-<br />
| [[image: Prototype.png |center|600px|First mRICH prototype]]<br />
|-<br />
| Figure 2.1. First mRICH prototype<br />
|}<br />
<br />
{| class="wikitable"<br />
|-<br />
! Component<br />
! Property<br />
|-<br />
| Detector holder box<br />
| acrylic<br />
|-<br />
| Aerogel<br />
| refractive index=1.03<br />
|-<br />
| Fresnel lens<br />
| spheric acrylic Fresnel lens. focal length=3"<br />
|-<br />
| Mirror set<br />
| <br />
|-<br />
| Sensor<br />
| HAMAMATSU 8500 PMT array. Pixel size=6&times;6mm<br />
|-<br />
|}<br />
<br />
'''First Beam Test'''<br />
<br />
Beam test set up at Fermilab Test Beam Mtest Facility for the first modular RICH prototype detector is shown in the picture below. The detector (black box) sit at the center of a aluminium frame. On both ends of the aluminium frame are hodoscopes. Each hodoscopes consist of four horizon finger-size (1cm x 1cm) scintillators, and four vertical finger-size scintillators. On the far right of the aluminium frame was trigger paddle. The beam was coming from right to left of the picture.<br />
<br />
{|<br />
|-<br />
| [[image:BeamTestSetup2.png|left|500px]]<br />
|-<br />
| Figure 3.1. Beam test set up at Fermilab Test Beam Mtest Facility for the first modular RICH prototype detector.<br />
|}<br />
<br />
Accumulated hit maps from test beam data (right) and simulation (left) are shown in figure (3.2) and (3.3).<br />
{|<br />
|-<br />
| [[image:MRICH run70 n103 accumulatedDisplay.png|400px]] [[image:MRICH simulation run70 hitMap.png|400px]]<br />
|-<br />
| Figure 3.2. Test beam (left) and simulation (right) results from 120 GeV/c proton beam hit perpendicularly at the center of detector xy plane<br />
|-<br />
| [[image:MRICH run88 n103 accumulatedDisplay.png|400px]] [[image:MRICH simulation run88 hitMap.png|400px]]<br />
|-<br />
| Figure 3.3. Test beam (left) and simulation (right) results from 120 GeV/c proton beam hit perpendicularly at the 3rd quadrant of detector xy plane.<br />
|}<br />
<br />
=Second Prototype=<br />
In order to enhance detector PID performance, the next mRICH prototype will use a longer focal length (6") Fresnel lens, and smaller pixel size (3mm &times; 3mm) photon sensors. Furthermore, the readout electronics will be separated from the optical components to avoid overheating.<br />
{|<br />
|-<br />
| [[image:Prototype2drawing.png|400px]] [[image:Prototype2pic.png|700px]]<br />
|-<br />
| Figure 3.1. (left) 3D drawing of the second mRICH prototype. (right) construction of the second mRICH prototype.<br />
|}<br />
<br />
{| class="wikitable"<br />
|-<br />
! Component<br />
! Property<br />
|-<br />
| Detector holder box<br />
| Aluminum<br />
|-<br />
| Aerogel<br />
| refractive index=1.03<br />
|-<br />
| Fresnel lens<br />
| spheric acrylic Fresnel lens. focal length=6"<br />
|-<br />
| Mirror set<br />
| <br />
|-<br />
| Sensor<br />
| HAMAMATSU 13700 PMT array. Pixel size=3&times;3mm<br />
|-<br />
|}<br />
<br />
{|<br />
|-<br />
| [[image:Num sigma 6inFocalLength.png|500px]][[image:MRICH e pi separation.png|450px]]<br />
|-<br />
| Figure 3.2. (Right) Projected K/pi separation power of modular RICH detector obtained from simulation using 6" focal length Fresnel lens with different pixel size photon sensors. K/pi separation power of second mRICH prototype is shown in green dots. (Left) Projected e/pi separation power of second modular RICH prototype. These plots indicates that with the second prototype design (green dots), the mRICH prototype can acheive 3-sigma of K/pi separation and e/pi separation up to 8 GeV/c and 2 GeV/c, respectively.<br />
|}<br />
<br />
=mRICH Detector System Simulation=<br />
*mRICH detector system in sPHENIX/ePHENIX. The detector system which contains 284 modules of mRICH, covers 1.0 to 2.0 rapidity.<br />
*:[[image: MRICH in ePHENIX.png |center|400px|mRICH in ePHENIX]]<br />
*:Event display of 10 negative pion tracks (view from down stream) from simulation. An enlarged view is shown on the left.<br />
*:[[image: MRICHsystem ePHENIX.png|center|400px|mRICH system in ePHENIX]]<br />
*mRICH detector system in JLEIC.<br />
*:[[image: MRICH in JLEIC.png |center|350px|mRICH in JLEIC]]</div>Pinghttp://phynp6.phy-astr.gsu.edu/eRD14/index.php?title=Modular_Ring_Imaging_Cherenkov_Detector_(mRICH)&diff=268Modular Ring Imaging Cherenkov Detector (mRICH)2017-07-12T18:42:32Z<p>Ping: /* Second Prototype */</p>
<hr />
<div>The goal of the modular aerogel RICH (mRICH) is to provide hadronic PID capability with momentum coverage from 3 to 10 GeV/c with a compact design in order to overcome the space limitations of the EIC experiments. Although the multi-layer proximity-focusing RICH design, such as ARICH at BELLE2, can achieve three-sigma K/&pi; separation at 4 GeV/c, a larger expansion volume is required for PID in higher momentum range.<br />
<br />
A multi-layer proximity-focusing RICH design increases PID separation power by increasing number of detected photons (Nγ) by adding successive layers of radiator while keeping the uncertainty of Cherenkov angle (&sigma;_&theta;) of single photon measurement. In contrast, the novel lens-based mRICH design improves the separation power by minimizing the uncertainty &sigma;_&theta; as a result of lens focusing, as shown in Figure 2.3.1 (right), which also requires a smaller coverage of the photosensor plane. <br />
<br />
=Detector Design=<br />
Modular RICH detector consist of a block of aerogel as a radiator, a Fresnel lens, a set of four-sided mirror, and a sensor plane. When charged particle passes through the aerogel, it will emit Cherenkov photons in a cone shape. These Cherenkov photons will be focused by the Fresnel lens on the sensor plane, and form a shape ring image.<br />
<br />
{|<br />
|-<br />
| [[image: Detector overview1.png |left|400px|Single 9 GeV/c pion simulation]]<br />
| [[image:Detector overview 9GeVPi center.png|left|420px|Single 9 GeV/c pion simulation]]<br />
|-<br />
| Figure 1.1 (a). Modular RICH detector in GEMC simulation<br />
| Figure 1.1 (b). Single 9 GeV/c pion simulation<br />
|}<br />
<br />
There are two advantages of the lens-based design. Firstly, the ring image is smaller and thinner because of the focusing of lens (see figure 1.2 and 1.3). Secondly, in the case that charged particle travelling parallel but off the longitudinal axis (that is, the optical principal of lens), ring image will be shifted to the central area of the sensor plane (see figure 1.4 and 1.5). Therefore, the lens-based design enhances detector PID performance, while lowers the required sensor plane area per ring.<br />
<br />
{|<br />
|-<br />
| [[image: LensFocusing withLens.png |left|800px]]<br />
|-<br />
| Figure 1.2. Lens focusing gives thinner Cherenkov ring image compare to BELLE-2 ARICH design (below)<br />
|-<br />
| [[image: BELLE2 ARICH Focusing.png |left|800px]]<br />
|-<br />
| Figure 1.3. BELL-2 ARICH design a double layer proximity focusing RICH detector. By using two different refractive indices aerogel block, in order to increase number of photons detected while keeping uncertainty of single photon measurement.<br />
|}<br />
<br />
{|<br />
|-<br />
| [[image:LensShifting withLens.png |left|800px]]<br />
|-<br />
| Figure 1.4. When the charge particle incident along the z-axis of the detector, Cherenkov ring image from the incident particle will be shifted to the central area of the sensor plane, resulting fewer photon loss, and reduce image distortion.<br />
|-<br />
| [[image: BELLE2 ARICH Shifting.png |left|800px]]<br />
|-<br />
| Figure 1.5. Cherenkov ring image from particles that are incident at the third quadrant of the detector.<br />
|}<br />
<br />
=Fisrt Prototype and Beam Test=<br />
'''First Prototype'''<br />
{|<br />
|-<br />
| [[image: Prototype.png |center|600px|First mRICH prototype]]<br />
|-<br />
| Figure 2.1. First mRICH prototype<br />
|}<br />
<br />
{| class="wikitable"<br />
|-<br />
! Component<br />
! Property<br />
|-<br />
| Detector holder box<br />
| acrylic<br />
|-<br />
| Aerogel<br />
| refractive index=1.03<br />
|-<br />
| Fresnel lens<br />
| spheric acrylic Fresnel lens. focal length=3"<br />
|-<br />
| Mirror set<br />
| <br />
|-<br />
| Sensor<br />
| HAMAMATSU 8500 PMT array. Pixel size=6&times;6mm<br />
|-<br />
|}<br />
<br />
'''First Beam Test'''<br />
<br />
Beam test set up at Fermilab Test Beam Mtest Facility for the first modular RICH prototype detector is shown in the picture below. The detector (black box) sit at the center of a aluminium frame. On both ends of the aluminium frame are hodoscopes. Each hodoscopes consist of four horizon finger-size (1cm x 1cm) scintillators, and four vertical finger-size scintillators. On the far right of the aluminium frame was trigger paddle. The beam was coming from right to left of the picture.<br />
<br />
{|<br />
|-<br />
| [[image:BeamTestSetup2.png|left|500px]]<br />
|-<br />
| Figure 3.1. Beam test set up at Fermilab Test Beam Mtest Facility for the first modular RICH prototype detector.<br />
|}<br />
<br />
Accumulated hit maps from test beam data (right) and simulation (left) are shown in figure (3.2) and (3.3).<br />
{|<br />
|-<br />
| [[image:MRICH run70 n103 accumulatedDisplay.png|400px]] [[image:MRICH simulation run70 hitMap.png|400px]]<br />
|-<br />
| Figure 3.2. Test beam (left) and simulation (right) results from 120 GeV/c proton beam hit perpendicularly at the center of detector xy plane<br />
|-<br />
| [[image:MRICH run88 n103 accumulatedDisplay.png|400px]] [[image:MRICH simulation run88 hitMap.png|400px]]<br />
|-<br />
| Figure 3.3. Test beam (left) and simulation (right) results from 120 GeV/c proton beam hit perpendicularly at the 3rd quadrant of detector xy plane.<br />
|}<br />
<br />
=Second Prototype=<br />
In order to enhance detector PID performance, the next mRICH prototype will use a longer focal length (6") Fresnel lens, and smaller pixel size (3mm &times; 3mm) photon sensors. Furthermore, the readout electronics will be separated from the optical components to avoid overheating.<br />
{|<br />
|-<br />
| [[image:Prototype2drawing.png|400px]] [[image:Prototype2pic.png|700px]]<br />
|-<br />
| Figure 3.1. (left) 3D drawing of the second mRICH prototype. (right) construction of the second mRICH prototype.<br />
|}<br />
<br />
{| class="wikitable"<br />
|-<br />
! Component<br />
! Property<br />
|-<br />
| Detector holder box<br />
| Aluminum<br />
|-<br />
| Aerogel<br />
| refractive index=1.03<br />
|-<br />
| Fresnel lens<br />
| spheric acrylic Fresnel lens. focal length=6"<br />
|-<br />
| Mirror set<br />
| <br />
|-<br />
| Sensor<br />
| HAMAMATSU 13700 PMT array. Pixel size=3&times;3mm<br />
|-<br />
|}<br />
<br />
{|<br />
|-<br />
| [[image:Num sigma 6inFocalLength.png|left|300px]][[image:MRICH e pi separation.png|left|300px]]<br />
|-<br />
| Figure 3.2. (Right) Projected K/pi separation power of modular RICH detector obtained from simulation using 6" focal length Fresnel lens with different pixel size photon sensors. K/pi separation power of second mRICH prototype is shown in green dots. (Left) Projected e/pi separation power of second modular RICH prototype. These plots indicates that with the second prototype design (green dots), the mRICH prototype can acheive 3-sigma of K/pi separation and e/pi separation up to 8 GeV/c and 2 GeV/c, respectively.<br />
|}<br />
<br />
=mRICH Detector System Simulation=<br />
*mRICH detector system in sPHENIX/ePHENIX. The detector system which contains 284 modules of mRICH, covers 1.0 to 2.0 rapidity.<br />
*:[[image: MRICH in ePHENIX.png |center|400px|mRICH in ePHENIX]]<br />
*:Event display of 10 negative pion tracks (view from down stream) from simulation. An enlarged view is shown on the left.<br />
*:[[image: MRICHsystem ePHENIX.png|center|400px|mRICH system in ePHENIX]]<br />
*mRICH detector system in JLEIC.<br />
*:[[image: MRICH in JLEIC.png |center|350px|mRICH in JLEIC]]</div>Pinghttp://phynp6.phy-astr.gsu.edu/eRD14/index.php?title=Modular_Ring_Imaging_Cherenkov_Detector_(mRICH)&diff=267Modular Ring Imaging Cherenkov Detector (mRICH)2017-07-12T18:39:39Z<p>Ping: /* Second Prototype */</p>
<hr />
<div>The goal of the modular aerogel RICH (mRICH) is to provide hadronic PID capability with momentum coverage from 3 to 10 GeV/c with a compact design in order to overcome the space limitations of the EIC experiments. Although the multi-layer proximity-focusing RICH design, such as ARICH at BELLE2, can achieve three-sigma K/&pi; separation at 4 GeV/c, a larger expansion volume is required for PID in higher momentum range.<br />
<br />
A multi-layer proximity-focusing RICH design increases PID separation power by increasing number of detected photons (Nγ) by adding successive layers of radiator while keeping the uncertainty of Cherenkov angle (&sigma;_&theta;) of single photon measurement. In contrast, the novel lens-based mRICH design improves the separation power by minimizing the uncertainty &sigma;_&theta; as a result of lens focusing, as shown in Figure 2.3.1 (right), which also requires a smaller coverage of the photosensor plane. <br />
<br />
=Detector Design=<br />
Modular RICH detector consist of a block of aerogel as a radiator, a Fresnel lens, a set of four-sided mirror, and a sensor plane. When charged particle passes through the aerogel, it will emit Cherenkov photons in a cone shape. These Cherenkov photons will be focused by the Fresnel lens on the sensor plane, and form a shape ring image.<br />
<br />
{|<br />
|-<br />
| [[image: Detector overview1.png |left|400px|Single 9 GeV/c pion simulation]]<br />
| [[image:Detector overview 9GeVPi center.png|left|420px|Single 9 GeV/c pion simulation]]<br />
|-<br />
| Figure 1.1 (a). Modular RICH detector in GEMC simulation<br />
| Figure 1.1 (b). Single 9 GeV/c pion simulation<br />
|}<br />
<br />
There are two advantages of the lens-based design. Firstly, the ring image is smaller and thinner because of the focusing of lens (see figure 1.2 and 1.3). Secondly, in the case that charged particle travelling parallel but off the longitudinal axis (that is, the optical principal of lens), ring image will be shifted to the central area of the sensor plane (see figure 1.4 and 1.5). Therefore, the lens-based design enhances detector PID performance, while lowers the required sensor plane area per ring.<br />
<br />
{|<br />
|-<br />
| [[image: LensFocusing withLens.png |left|800px]]<br />
|-<br />
| Figure 1.2. Lens focusing gives thinner Cherenkov ring image compare to BELLE-2 ARICH design (below)<br />
|-<br />
| [[image: BELLE2 ARICH Focusing.png |left|800px]]<br />
|-<br />
| Figure 1.3. BELL-2 ARICH design a double layer proximity focusing RICH detector. By using two different refractive indices aerogel block, in order to increase number of photons detected while keeping uncertainty of single photon measurement.<br />
|}<br />
<br />
{|<br />
|-<br />
| [[image:LensShifting withLens.png |left|800px]]<br />
|-<br />
| Figure 1.4. When the charge particle incident along the z-axis of the detector, Cherenkov ring image from the incident particle will be shifted to the central area of the sensor plane, resulting fewer photon loss, and reduce image distortion.<br />
|-<br />
| [[image: BELLE2 ARICH Shifting.png |left|800px]]<br />
|-<br />
| Figure 1.5. Cherenkov ring image from particles that are incident at the third quadrant of the detector.<br />
|}<br />
<br />
=Fisrt Prototype and Beam Test=<br />
'''First Prototype'''<br />
{|<br />
|-<br />
| [[image: Prototype.png |center|600px|First mRICH prototype]]<br />
|-<br />
| Figure 2.1. First mRICH prototype<br />
|}<br />
<br />
{| class="wikitable"<br />
|-<br />
! Component<br />
! Property<br />
|-<br />
| Detector holder box<br />
| acrylic<br />
|-<br />
| Aerogel<br />
| refractive index=1.03<br />
|-<br />
| Fresnel lens<br />
| spheric acrylic Fresnel lens. focal length=3"<br />
|-<br />
| Mirror set<br />
| <br />
|-<br />
| Sensor<br />
| HAMAMATSU 8500 PMT array. Pixel size=6&times;6mm<br />
|-<br />
|}<br />
<br />
'''First Beam Test'''<br />
<br />
Beam test set up at Fermilab Test Beam Mtest Facility for the first modular RICH prototype detector is shown in the picture below. The detector (black box) sit at the center of a aluminium frame. On both ends of the aluminium frame are hodoscopes. Each hodoscopes consist of four horizon finger-size (1cm x 1cm) scintillators, and four vertical finger-size scintillators. On the far right of the aluminium frame was trigger paddle. The beam was coming from right to left of the picture.<br />
<br />
{|<br />
|-<br />
| [[image:BeamTestSetup2.png|left|500px]]<br />
|-<br />
| Figure 3.1. Beam test set up at Fermilab Test Beam Mtest Facility for the first modular RICH prototype detector.<br />
|}<br />
<br />
Accumulated hit maps from test beam data (right) and simulation (left) are shown in figure (3.2) and (3.3).<br />
{|<br />
|-<br />
| [[image:MRICH run70 n103 accumulatedDisplay.png|400px]] [[image:MRICH simulation run70 hitMap.png|400px]]<br />
|-<br />
| Figure 3.2. Test beam (left) and simulation (right) results from 120 GeV/c proton beam hit perpendicularly at the center of detector xy plane<br />
|-<br />
| [[image:MRICH run88 n103 accumulatedDisplay.png|400px]] [[image:MRICH simulation run88 hitMap.png|400px]]<br />
|-<br />
| Figure 3.3. Test beam (left) and simulation (right) results from 120 GeV/c proton beam hit perpendicularly at the 3rd quadrant of detector xy plane.<br />
|}<br />
<br />
=Second Prototype=<br />
In order to enhance detector PID performance, the next mRICH prototype will use a longer focal length (6") Fresnel lens, and smaller pixel size (3mm &times; 3mm) photon sensors. Furthermore, the readout electronics will be separated from the optical components to avoid overheating.<br />
{|<br />
|-<br />
| [[image:Prototype2drawing.png|400px]] [[image:Prototype2pic.png|700px]]<br />
|-<br />
| Figure 3.1. (left) 3D drawing of the second mRICH prototype. (right) construction of the second mRICH prototype.<br />
|}<br />
<br />
{| class="wikitable"<br />
|-<br />
! Component<br />
! Property<br />
|-<br />
| Detector holder box<br />
| Aluminum<br />
|-<br />
| Aerogel<br />
| refractive index=1.03<br />
|-<br />
| Fresnel lens<br />
| spheric acrylic Fresnel lens. focal length=6"<br />
|-<br />
| Mirror set<br />
| <br />
|-<br />
| Sensor<br />
| HAMAMATSU 13700 PMT array. Pixel size=3&times;3mm<br />
|-<br />
|}<br />
<br />
{|<br />
|-<br />
| [[image:Num sigma 6inFocalLength.png|left|500px]] [[image:MRICH e pi separation.png|left|400px]]<br />
<br />
|-<br />
| Figure 3.2. (Right) Projected K/pi separation power of modular RICH detector obtained from simulation using 6" focal length Fresnel lens with different pixel size photon sensors. K/pi separation power of second mRICH prototype is shown in green dots. (Left) Projected e/pi separation power of second modular RICH prototype. These plots indicates that with the second prototype design (green dots), the mRICH prototype can acheive 3-sigma of K/pi separation and e/pi separation up to 8 GeV/c and 2 GeV/c, respectively.<br />
|}<br />
<br />
=mRICH Detector System Simulation=<br />
*mRICH detector system in sPHENIX/ePHENIX. The detector system which contains 284 modules of mRICH, covers 1.0 to 2.0 rapidity.<br />
*:[[image: MRICH in ePHENIX.png |center|400px|mRICH in ePHENIX]]<br />
*:Event display of 10 negative pion tracks (view from down stream) from simulation. An enlarged view is shown on the left.<br />
*:[[image: MRICHsystem ePHENIX.png|center|400px|mRICH system in ePHENIX]]<br />
*mRICH detector system in JLEIC.<br />
*:[[image: MRICH in JLEIC.png |center|350px|mRICH in JLEIC]]</div>Pinghttp://phynp6.phy-astr.gsu.edu/eRD14/index.php?title=Modular_Ring_Imaging_Cherenkov_Detector_(mRICH)&diff=266Modular Ring Imaging Cherenkov Detector (mRICH)2017-07-12T18:33:23Z<p>Ping: /* Second Prototype */</p>
<hr />
<div>The goal of the modular aerogel RICH (mRICH) is to provide hadronic PID capability with momentum coverage from 3 to 10 GeV/c with a compact design in order to overcome the space limitations of the EIC experiments. Although the multi-layer proximity-focusing RICH design, such as ARICH at BELLE2, can achieve three-sigma K/&pi; separation at 4 GeV/c, a larger expansion volume is required for PID in higher momentum range.<br />
<br />
A multi-layer proximity-focusing RICH design increases PID separation power by increasing number of detected photons (Nγ) by adding successive layers of radiator while keeping the uncertainty of Cherenkov angle (&sigma;_&theta;) of single photon measurement. In contrast, the novel lens-based mRICH design improves the separation power by minimizing the uncertainty &sigma;_&theta; as a result of lens focusing, as shown in Figure 2.3.1 (right), which also requires a smaller coverage of the photosensor plane. <br />
<br />
=Detector Design=<br />
Modular RICH detector consist of a block of aerogel as a radiator, a Fresnel lens, a set of four-sided mirror, and a sensor plane. When charged particle passes through the aerogel, it will emit Cherenkov photons in a cone shape. These Cherenkov photons will be focused by the Fresnel lens on the sensor plane, and form a shape ring image.<br />
<br />
{|<br />
|-<br />
| [[image: Detector overview1.png |left|400px|Single 9 GeV/c pion simulation]]<br />
| [[image:Detector overview 9GeVPi center.png|left|420px|Single 9 GeV/c pion simulation]]<br />
|-<br />
| Figure 1.1 (a). Modular RICH detector in GEMC simulation<br />
| Figure 1.1 (b). Single 9 GeV/c pion simulation<br />
|}<br />
<br />
There are two advantages of the lens-based design. Firstly, the ring image is smaller and thinner because of the focusing of lens (see figure 1.2 and 1.3). Secondly, in the case that charged particle travelling parallel but off the longitudinal axis (that is, the optical principal of lens), ring image will be shifted to the central area of the sensor plane (see figure 1.4 and 1.5). Therefore, the lens-based design enhances detector PID performance, while lowers the required sensor plane area per ring.<br />
<br />
{|<br />
|-<br />
| [[image: LensFocusing withLens.png |left|800px]]<br />
|-<br />
| Figure 1.2. Lens focusing gives thinner Cherenkov ring image compare to BELLE-2 ARICH design (below)<br />
|-<br />
| [[image: BELLE2 ARICH Focusing.png |left|800px]]<br />
|-<br />
| Figure 1.3. BELL-2 ARICH design a double layer proximity focusing RICH detector. By using two different refractive indices aerogel block, in order to increase number of photons detected while keeping uncertainty of single photon measurement.<br />
|}<br />
<br />
{|<br />
|-<br />
| [[image:LensShifting withLens.png |left|800px]]<br />
|-<br />
| Figure 1.4. When the charge particle incident along the z-axis of the detector, Cherenkov ring image from the incident particle will be shifted to the central area of the sensor plane, resulting fewer photon loss, and reduce image distortion.<br />
|-<br />
| [[image: BELLE2 ARICH Shifting.png |left|800px]]<br />
|-<br />
| Figure 1.5. Cherenkov ring image from particles that are incident at the third quadrant of the detector.<br />
|}<br />
<br />
=Fisrt Prototype and Beam Test=<br />
'''First Prototype'''<br />
{|<br />
|-<br />
| [[image: Prototype.png |center|600px|First mRICH prototype]]<br />
|-<br />
| Figure 2.1. First mRICH prototype<br />
|}<br />
<br />
{| class="wikitable"<br />
|-<br />
! Component<br />
! Property<br />
|-<br />
| Detector holder box<br />
| acrylic<br />
|-<br />
| Aerogel<br />
| refractive index=1.03<br />
|-<br />
| Fresnel lens<br />
| spheric acrylic Fresnel lens. focal length=3"<br />
|-<br />
| Mirror set<br />
| <br />
|-<br />
| Sensor<br />
| HAMAMATSU 8500 PMT array. Pixel size=6&times;6mm<br />
|-<br />
|}<br />
<br />
'''First Beam Test'''<br />
<br />
Beam test set up at Fermilab Test Beam Mtest Facility for the first modular RICH prototype detector is shown in the picture below. The detector (black box) sit at the center of a aluminium frame. On both ends of the aluminium frame are hodoscopes. Each hodoscopes consist of four horizon finger-size (1cm x 1cm) scintillators, and four vertical finger-size scintillators. On the far right of the aluminium frame was trigger paddle. The beam was coming from right to left of the picture.<br />
<br />
{|<br />
|-<br />
| [[image:BeamTestSetup2.png|left|500px]]<br />
|-<br />
| Figure 3.1. Beam test set up at Fermilab Test Beam Mtest Facility for the first modular RICH prototype detector.<br />
|}<br />
<br />
Accumulated hit maps from test beam data (right) and simulation (left) are shown in figure (3.2) and (3.3).<br />
{|<br />
|-<br />
| [[image:MRICH run70 n103 accumulatedDisplay.png|400px]] [[image:MRICH simulation run70 hitMap.png|400px]]<br />
|-<br />
| Figure 3.2. Test beam (left) and simulation (right) results from 120 GeV/c proton beam hit perpendicularly at the center of detector xy plane<br />
|-<br />
| [[image:MRICH run88 n103 accumulatedDisplay.png|400px]] [[image:MRICH simulation run88 hitMap.png|400px]]<br />
|-<br />
| Figure 3.3. Test beam (left) and simulation (right) results from 120 GeV/c proton beam hit perpendicularly at the 3rd quadrant of detector xy plane.<br />
|}<br />
<br />
=Second Prototype=<br />
In order to enhance detector PID performance, the next mRICH prototype will use a longer focal length (6") Fresnel lens, and smaller pixel size (3mm &times; 3mm) photon sensors. Furthermore, the readout electronics will be separated from the optical components to avoid overheating.<br />
{|<br />
|-<br />
| [[image:Prototype2drawing.png|400px]] [[image:Prototype2pic.png|700px]]<br />
|-<br />
| Figure 3.1. (left) 3D drawing of the second mRICH prototype. (right) construction of the second mRICH prototype.<br />
|}<br />
<br />
{| class="wikitable"<br />
|-<br />
! Component<br />
! Property<br />
|-<br />
| Detector holder box<br />
| Aluminum<br />
|-<br />
| Aerogel<br />
| refractive index=1.03<br />
|-<br />
| Fresnel lens<br />
| spheric acrylic Fresnel lens. focal length=6"<br />
|-<br />
| Mirror set<br />
| <br />
|-<br />
| Sensor<br />
| HAMAMATSU 13700 PMT array. Pixel size=3&times;3mm<br />
|-<br />
|}<br />
<br />
{|<br />
|-<br />
| [[image:Num sigma 6inFocalLength.png|left|500px]]<br />
|-<br />
| Figure 3.2. Separation power of modular RICH detector obtained from simulation using 6" focal length Fresnel lens with different pixel size photon sensors. This plot indicates that with the second prototype design (green dots), the second mRICH prototype can acheive 3-sigma up to 8 GeV/c.<br />
|}<br />
<br />
{|<br />
|-<br />
| [[image:Num sigma 6inFocalLength.png|left|500px]]<br />
| [[image:MRICH e pi separation.png|left|500px]]<br />
|-<br />
| Figure 3.2 (a). K/pi separation power<br />
| Figure 3.2 (b). e/pi separation power<br />
|}<br />
<br />
=mRICH Detector System Simulation=<br />
*mRICH detector system in sPHENIX/ePHENIX. The detector system which contains 284 modules of mRICH, covers 1.0 to 2.0 rapidity.<br />
*:[[image: MRICH in ePHENIX.png |center|400px|mRICH in ePHENIX]]<br />
*:Event display of 10 negative pion tracks (view from down stream) from simulation. An enlarged view is shown on the left.<br />
*:[[image: MRICHsystem ePHENIX.png|center|400px|mRICH system in ePHENIX]]<br />
*mRICH detector system in JLEIC.<br />
*:[[image: MRICH in JLEIC.png |center|350px|mRICH in JLEIC]]</div>Pinghttp://phynp6.phy-astr.gsu.edu/eRD14/index.php?title=File:MRICH_e_pi_separation.png&diff=265File:MRICH e pi separation.png2017-07-12T18:32:36Z<p>Ping: </p>
<hr />
<div></div>Pinghttp://phynp6.phy-astr.gsu.edu/eRD14/index.php?title=Modular_Ring_Imaging_Cherenkov_Detector_(mRICH)&diff=264Modular Ring Imaging Cherenkov Detector (mRICH)2017-07-12T18:28:38Z<p>Ping: /* Second Prototype */</p>
<hr />
<div>The goal of the modular aerogel RICH (mRICH) is to provide hadronic PID capability with momentum coverage from 3 to 10 GeV/c with a compact design in order to overcome the space limitations of the EIC experiments. Although the multi-layer proximity-focusing RICH design, such as ARICH at BELLE2, can achieve three-sigma K/&pi; separation at 4 GeV/c, a larger expansion volume is required for PID in higher momentum range.<br />
<br />
A multi-layer proximity-focusing RICH design increases PID separation power by increasing number of detected photons (Nγ) by adding successive layers of radiator while keeping the uncertainty of Cherenkov angle (&sigma;_&theta;) of single photon measurement. In contrast, the novel lens-based mRICH design improves the separation power by minimizing the uncertainty &sigma;_&theta; as a result of lens focusing, as shown in Figure 2.3.1 (right), which also requires a smaller coverage of the photosensor plane. <br />
<br />
=Detector Design=<br />
Modular RICH detector consist of a block of aerogel as a radiator, a Fresnel lens, a set of four-sided mirror, and a sensor plane. When charged particle passes through the aerogel, it will emit Cherenkov photons in a cone shape. These Cherenkov photons will be focused by the Fresnel lens on the sensor plane, and form a shape ring image.<br />
<br />
{|<br />
|-<br />
| [[image: Detector overview1.png |left|400px|Single 9 GeV/c pion simulation]]<br />
| [[image:Detector overview 9GeVPi center.png|left|420px|Single 9 GeV/c pion simulation]]<br />
|-<br />
| Figure 1.1 (a). Modular RICH detector in GEMC simulation<br />
| Figure 1.1 (b). Single 9 GeV/c pion simulation<br />
|}<br />
<br />
There are two advantages of the lens-based design. Firstly, the ring image is smaller and thinner because of the focusing of lens (see figure 1.2 and 1.3). Secondly, in the case that charged particle travelling parallel but off the longitudinal axis (that is, the optical principal of lens), ring image will be shifted to the central area of the sensor plane (see figure 1.4 and 1.5). Therefore, the lens-based design enhances detector PID performance, while lowers the required sensor plane area per ring.<br />
<br />
{|<br />
|-<br />
| [[image: LensFocusing withLens.png |left|800px]]<br />
|-<br />
| Figure 1.2. Lens focusing gives thinner Cherenkov ring image compare to BELLE-2 ARICH design (below)<br />
|-<br />
| [[image: BELLE2 ARICH Focusing.png |left|800px]]<br />
|-<br />
| Figure 1.3. BELL-2 ARICH design a double layer proximity focusing RICH detector. By using two different refractive indices aerogel block, in order to increase number of photons detected while keeping uncertainty of single photon measurement.<br />
|}<br />
<br />
{|<br />
|-<br />
| [[image:LensShifting withLens.png |left|800px]]<br />
|-<br />
| Figure 1.4. When the charge particle incident along the z-axis of the detector, Cherenkov ring image from the incident particle will be shifted to the central area of the sensor plane, resulting fewer photon loss, and reduce image distortion.<br />
|-<br />
| [[image: BELLE2 ARICH Shifting.png |left|800px]]<br />
|-<br />
| Figure 1.5. Cherenkov ring image from particles that are incident at the third quadrant of the detector.<br />
|}<br />
<br />
=Fisrt Prototype and Beam Test=<br />
'''First Prototype'''<br />
{|<br />
|-<br />
| [[image: Prototype.png |center|600px|First mRICH prototype]]<br />
|-<br />
| Figure 2.1. First mRICH prototype<br />
|}<br />
<br />
{| class="wikitable"<br />
|-<br />
! Component<br />
! Property<br />
|-<br />
| Detector holder box<br />
| acrylic<br />
|-<br />
| Aerogel<br />
| refractive index=1.03<br />
|-<br />
| Fresnel lens<br />
| spheric acrylic Fresnel lens. focal length=3"<br />
|-<br />
| Mirror set<br />
| <br />
|-<br />
| Sensor<br />
| HAMAMATSU 8500 PMT array. Pixel size=6&times;6mm<br />
|-<br />
|}<br />
<br />
'''First Beam Test'''<br />
<br />
Beam test set up at Fermilab Test Beam Mtest Facility for the first modular RICH prototype detector is shown in the picture below. The detector (black box) sit at the center of a aluminium frame. On both ends of the aluminium frame are hodoscopes. Each hodoscopes consist of four horizon finger-size (1cm x 1cm) scintillators, and four vertical finger-size scintillators. On the far right of the aluminium frame was trigger paddle. The beam was coming from right to left of the picture.<br />
<br />
{|<br />
|-<br />
| [[image:BeamTestSetup2.png|left|500px]]<br />
|-<br />
| Figure 3.1. Beam test set up at Fermilab Test Beam Mtest Facility for the first modular RICH prototype detector.<br />
|}<br />
<br />
Accumulated hit maps from test beam data (right) and simulation (left) are shown in figure (3.2) and (3.3).<br />
{|<br />
|-<br />
| [[image:MRICH run70 n103 accumulatedDisplay.png|400px]] [[image:MRICH simulation run70 hitMap.png|400px]]<br />
|-<br />
| Figure 3.2. Test beam (left) and simulation (right) results from 120 GeV/c proton beam hit perpendicularly at the center of detector xy plane<br />
|-<br />
| [[image:MRICH run88 n103 accumulatedDisplay.png|400px]] [[image:MRICH simulation run88 hitMap.png|400px]]<br />
|-<br />
| Figure 3.3. Test beam (left) and simulation (right) results from 120 GeV/c proton beam hit perpendicularly at the 3rd quadrant of detector xy plane.<br />
|}<br />
<br />
=Second Prototype=<br />
In order to enhance detector PID performance, the next mRICH prototype will use a longer focal length (6") Fresnel lens, and smaller pixel size (3mm &times; 3mm) photon sensors. Furthermore, the readout electronics will be separated from the optical components to avoid overheating.<br />
{|<br />
|-<br />
| [[image:Prototype2drawing.png|400px]] [[image:Prototype2pic.png|700px]]<br />
|-<br />
| Figure 3.1. (left) 3D drawing of the second mRICH prototype. (right) construction of the second mRICH prototype.<br />
|}<br />
<br />
{| class="wikitable"<br />
|-<br />
! Component<br />
! Property<br />
|-<br />
| Detector holder box<br />
| Aluminum<br />
|-<br />
| Aerogel<br />
| refractive index=1.03<br />
|-<br />
| Fresnel lens<br />
| spheric acrylic Fresnel lens. focal length=6"<br />
|-<br />
| Mirror set<br />
| <br />
|-<br />
| Sensor<br />
| HAMAMATSU 13700 PMT array. Pixel size=3&times;3mm<br />
|-<br />
|}<br />
<br />
{|<br />
|-<br />
| [[image:Num sigma 6inFocalLength.png|left|500px]]<br />
|-<br />
| Figure 3.2. Separation power of modular RICH detector obtained from simulation using 6" focal length Fresnel lens with different pixel size photon sensors. This plot indicates that with the second prototype design (green dots), the second mRICH prototype can acheive 3-sigma up to 8 GeV/c.<br />
|}<br />
<br />
=mRICH Detector System Simulation=<br />
*mRICH detector system in sPHENIX/ePHENIX. The detector system which contains 284 modules of mRICH, covers 1.0 to 2.0 rapidity.<br />
*:[[image: MRICH in ePHENIX.png |center|400px|mRICH in ePHENIX]]<br />
*:Event display of 10 negative pion tracks (view from down stream) from simulation. An enlarged view is shown on the left.<br />
*:[[image: MRICHsystem ePHENIX.png|center|400px|mRICH system in ePHENIX]]<br />
*mRICH detector system in JLEIC.<br />
*:[[image: MRICH in JLEIC.png |center|350px|mRICH in JLEIC]]</div>Pinghttp://phynp6.phy-astr.gsu.edu/eRD14/index.php?title=Modular_Ring_Imaging_Cherenkov_Detector_(mRICH)&diff=263Modular Ring Imaging Cherenkov Detector (mRICH)2017-07-12T18:27:44Z<p>Ping: /* Detector Design */</p>
<hr />
<div>The goal of the modular aerogel RICH (mRICH) is to provide hadronic PID capability with momentum coverage from 3 to 10 GeV/c with a compact design in order to overcome the space limitations of the EIC experiments. Although the multi-layer proximity-focusing RICH design, such as ARICH at BELLE2, can achieve three-sigma K/&pi; separation at 4 GeV/c, a larger expansion volume is required for PID in higher momentum range.<br />
<br />
A multi-layer proximity-focusing RICH design increases PID separation power by increasing number of detected photons (Nγ) by adding successive layers of radiator while keeping the uncertainty of Cherenkov angle (&sigma;_&theta;) of single photon measurement. In contrast, the novel lens-based mRICH design improves the separation power by minimizing the uncertainty &sigma;_&theta; as a result of lens focusing, as shown in Figure 2.3.1 (right), which also requires a smaller coverage of the photosensor plane. <br />
<br />
=Detector Design=<br />
Modular RICH detector consist of a block of aerogel as a radiator, a Fresnel lens, a set of four-sided mirror, and a sensor plane. When charged particle passes through the aerogel, it will emit Cherenkov photons in a cone shape. These Cherenkov photons will be focused by the Fresnel lens on the sensor plane, and form a shape ring image.<br />
<br />
{|<br />
|-<br />
| [[image: Detector overview1.png |left|400px|Single 9 GeV/c pion simulation]]<br />
| [[image:Detector overview 9GeVPi center.png|left|420px|Single 9 GeV/c pion simulation]]<br />
|-<br />
| Figure 1.1 (a). Modular RICH detector in GEMC simulation<br />
| Figure 1.1 (b). Single 9 GeV/c pion simulation<br />
|}<br />
<br />
There are two advantages of the lens-based design. Firstly, the ring image is smaller and thinner because of the focusing of lens (see figure 1.2 and 1.3). Secondly, in the case that charged particle travelling parallel but off the longitudinal axis (that is, the optical principal of lens), ring image will be shifted to the central area of the sensor plane (see figure 1.4 and 1.5). Therefore, the lens-based design enhances detector PID performance, while lowers the required sensor plane area per ring.<br />
<br />
{|<br />
|-<br />
| [[image: LensFocusing withLens.png |left|800px]]<br />
|-<br />
| Figure 1.2. Lens focusing gives thinner Cherenkov ring image compare to BELLE-2 ARICH design (below)<br />
|-<br />
| [[image: BELLE2 ARICH Focusing.png |left|800px]]<br />
|-<br />
| Figure 1.3. BELL-2 ARICH design a double layer proximity focusing RICH detector. By using two different refractive indices aerogel block, in order to increase number of photons detected while keeping uncertainty of single photon measurement.<br />
|}<br />
<br />
{|<br />
|-<br />
| [[image:LensShifting withLens.png |left|800px]]<br />
|-<br />
| Figure 1.4. When the charge particle incident along the z-axis of the detector, Cherenkov ring image from the incident particle will be shifted to the central area of the sensor plane, resulting fewer photon loss, and reduce image distortion.<br />
|-<br />
| [[image: BELLE2 ARICH Shifting.png |left|800px]]<br />
|-<br />
| Figure 1.5. Cherenkov ring image from particles that are incident at the third quadrant of the detector.<br />
|}<br />
<br />
=Fisrt Prototype and Beam Test=<br />
'''First Prototype'''<br />
{|<br />
|-<br />
| [[image: Prototype.png |center|600px|First mRICH prototype]]<br />
|-<br />
| Figure 2.1. First mRICH prototype<br />
|}<br />
<br />
{| class="wikitable"<br />
|-<br />
! Component<br />
! Property<br />
|-<br />
| Detector holder box<br />
| acrylic<br />
|-<br />
| Aerogel<br />
| refractive index=1.03<br />
|-<br />
| Fresnel lens<br />
| spheric acrylic Fresnel lens. focal length=3"<br />
|-<br />
| Mirror set<br />
| <br />
|-<br />
| Sensor<br />
| HAMAMATSU 8500 PMT array. Pixel size=6&times;6mm<br />
|-<br />
|}<br />
<br />
'''First Beam Test'''<br />
<br />
Beam test set up at Fermilab Test Beam Mtest Facility for the first modular RICH prototype detector is shown in the picture below. The detector (black box) sit at the center of a aluminium frame. On both ends of the aluminium frame are hodoscopes. Each hodoscopes consist of four horizon finger-size (1cm x 1cm) scintillators, and four vertical finger-size scintillators. On the far right of the aluminium frame was trigger paddle. The beam was coming from right to left of the picture.<br />
<br />
{|<br />
|-<br />
| [[image:BeamTestSetup2.png|left|500px]]<br />
|-<br />
| Figure 3.1. Beam test set up at Fermilab Test Beam Mtest Facility for the first modular RICH prototype detector.<br />
|}<br />
<br />
Accumulated hit maps from test beam data (right) and simulation (left) are shown in figure (3.2) and (3.3).<br />
{|<br />
|-<br />
| [[image:MRICH run70 n103 accumulatedDisplay.png|400px]] [[image:MRICH simulation run70 hitMap.png|400px]]<br />
|-<br />
| Figure 3.2. Test beam (left) and simulation (right) results from 120 GeV/c proton beam hit perpendicularly at the center of detector xy plane<br />
|-<br />
| [[image:MRICH run88 n103 accumulatedDisplay.png|400px]] [[image:MRICH simulation run88 hitMap.png|400px]]<br />
|-<br />
| Figure 3.3. Test beam (left) and simulation (right) results from 120 GeV/c proton beam hit perpendicularly at the 3rd quadrant of detector xy plane.<br />
|}<br />
<br />
=Second Prototype=<br />
In order to enhance detector PID performance, the next mRICH prototype will use a longer focal length (6") Fresnel lens, and smaller pixel size (3mm &times; 3mm) photon sensors. Furthermore, the readout electronics will be separated from the optical components to avoid overheating.<br />
{|<br />
|-<br />
| [[image:Prototype2drawing.png|400px]] [[image:Prototype2pic.png|700px]]<br />
|-<br />
| Figure 3.1. (left) 3D drawing of the second mRICH prototype. (right) construction of the second mRICH prototype.<br />
|}<br />
<br />
{| class="wikitable"<br />
|-<br />
! Component<br />
! Property<br />
|-<br />
| Detector holder box<br />
| Aluminum<br />
|-<br />
| Aerogel<br />
| refractive index=1.03<br />
|-<br />
| Fresnel lens<br />
| spheric acrylic Fresnel lens. focal length=6"<br />
|-<br />
| Mirror set<br />
| <br />
|-<br />
| Sensor<br />
| HAMAMATSU 13700 PMT array. Pixel size=3&times;3mm<br />
|-<br />
|}<br />
<br />
{|<br />
|-<br />
| [[image:Num sigma 6inFocalLength.png|left|500px]]<br />
|-<br />
| Figure 3.2. Separation power of modular RICH detector obtained from simulation using 6" focal length Fresnel lens with different pixel sizes. This plot indicates that with the second prototype design (green dots), the second mRICH prototype can acheive 3-sigma up to 8 GeV/c.<br />
|}<br />
<br />
=mRICH Detector System Simulation=<br />
*mRICH detector system in sPHENIX/ePHENIX. The detector system which contains 284 modules of mRICH, covers 1.0 to 2.0 rapidity.<br />
*:[[image: MRICH in ePHENIX.png |center|400px|mRICH in ePHENIX]]<br />
*:Event display of 10 negative pion tracks (view from down stream) from simulation. An enlarged view is shown on the left.<br />
*:[[image: MRICHsystem ePHENIX.png|center|400px|mRICH system in ePHENIX]]<br />
*mRICH detector system in JLEIC.<br />
*:[[image: MRICH in JLEIC.png |center|350px|mRICH in JLEIC]]</div>Pinghttp://phynp6.phy-astr.gsu.edu/eRD14/index.php?title=Modular_Ring_Imaging_Cherenkov_Detector_(mRICH)&diff=262Modular Ring Imaging Cherenkov Detector (mRICH)2017-07-12T18:25:49Z<p>Ping: /* Second Prototype */</p>
<hr />
<div>The goal of the modular aerogel RICH (mRICH) is to provide hadronic PID capability with momentum coverage from 3 to 10 GeV/c with a compact design in order to overcome the space limitations of the EIC experiments. Although the multi-layer proximity-focusing RICH design, such as ARICH at BELLE2, can achieve three-sigma K/&pi; separation at 4 GeV/c, a larger expansion volume is required for PID in higher momentum range.<br />
<br />
A multi-layer proximity-focusing RICH design increases PID separation power by increasing number of detected photons (Nγ) by adding successive layers of radiator while keeping the uncertainty of Cherenkov angle (&sigma;_&theta;) of single photon measurement. In contrast, the novel lens-based mRICH design improves the separation power by minimizing the uncertainty &sigma;_&theta; as a result of lens focusing, as shown in Figure 2.3.1 (right), which also requires a smaller coverage of the photosensor plane. <br />
<br />
=Detector Design=<br />
Modular RICH detector consist of a block of aerogel as a radiator, a Fresnel lens, a set of four-sided mirror, and a sensor plane. When charged particle passes through the aerogel, it will emit Cherenkov photons in a cone shape. These Cherenkov photons will be focused by the Fresnel lens on the sensor plane, and form a shape ring image.<br />
<br />
{|<br />
|-<br />
| [[image: Detector overview1.png |left|400px|Single 9 GeV/c pion simulation]]<br />
| [[image:Detector overview 9GeVPi center.png|left|420px|Single 9 GeV/c pion simulation]]<br />
|-<br />
| Figure 1.1 (a). Modular RICH detector in GEMC simulation<br />
| Figure 1.1 (b). Single 9 GeV/c pion simulation<br />
|}<br />
<br />
There are two advantages of the lens-based design. Firstly, the ring image is smaller and thinner because of the focusing of lens (see figure 1.2 and 1.3). Secondly, in the case that charged particle travelling parallel but off the longitudinal axis (that is, the optical principal of lens), ring image will be shifted to the central area of the sensor plane (see figure 1.4 and 1.5). Therefore, the lens-based design enhances detector PID performance, while lowers the required sensor plane area per ring.<br />
<br />
{|<br />
|-<br />
| [[image: LensFocusing withLens.png |left|800px]]<br />
|-<br />
| Figure 1.2. Lens focusing gives thinner Cherenkov ring image compare to BELLE-2 ARICH design (below)<br />
|-<br />
| [[image: BELLE2 ARICH Focusing.png |left|800px]]<br />
|-<br />
| Figure 1.3. BELL-2 ARICH design a double layer proximity focusing RICH detector. By using two different refractive indices aerogel block, in order to increase number of photons detected while keeping uncertainty of single photon measurement.<br />
|}<br />
<br />
{|<br />
|-<br />
| [[image:LensShifting withLens.png |left|800px]]<br />
|-<br />
| Figure 1.4. When the charge particle incident along the z-axis of the detector, Cherenkov ring image from the incident particle will be shifted to the central area of the sensor plane, resulting fewer photon loss, and reduce image distortion.<br />
|-<br />
| [[image: BELLE2 ARICH Shifting.png |left|800px]]<br />
|-<br />
| Figure 1.5. Cherenkov ring image from particles that are incident at the third quadrant of the detector.<br />
|}<br />
<br />
{|<br />
|-<br />
| [[image:Num sigma 6inFocalLength.png|left|500px]]<br />
|-<br />
| Figure 1.6. Separation power of modular RICH detector obtained from simulation using 6" focal length Fresnel lens with different pixel sizes<br />
|}<br />
<br />
=Fisrt Prototype and Beam Test=<br />
'''First Prototype'''<br />
{|<br />
|-<br />
| [[image: Prototype.png |center|600px|First mRICH prototype]]<br />
|-<br />
| Figure 2.1. First mRICH prototype<br />
|}<br />
<br />
{| class="wikitable"<br />
|-<br />
! Component<br />
! Property<br />
|-<br />
| Detector holder box<br />
| acrylic<br />
|-<br />
| Aerogel<br />
| refractive index=1.03<br />
|-<br />
| Fresnel lens<br />
| spheric acrylic Fresnel lens. focal length=3"<br />
|-<br />
| Mirror set<br />
| <br />
|-<br />
| Sensor<br />
| HAMAMATSU 8500 PMT array. Pixel size=6&times;6mm<br />
|-<br />
|}<br />
<br />
'''First Beam Test'''<br />
<br />
Beam test set up at Fermilab Test Beam Mtest Facility for the first modular RICH prototype detector is shown in the picture below. The detector (black box) sit at the center of a aluminium frame. On both ends of the aluminium frame are hodoscopes. Each hodoscopes consist of four horizon finger-size (1cm x 1cm) scintillators, and four vertical finger-size scintillators. On the far right of the aluminium frame was trigger paddle. The beam was coming from right to left of the picture.<br />
<br />
{|<br />
|-<br />
| [[image:BeamTestSetup2.png|left|500px]]<br />
|-<br />
| Figure 3.1. Beam test set up at Fermilab Test Beam Mtest Facility for the first modular RICH prototype detector.<br />
|}<br />
<br />
Accumulated hit maps from test beam data (right) and simulation (left) are shown in figure (3.2) and (3.3).<br />
{|<br />
|-<br />
| [[image:MRICH run70 n103 accumulatedDisplay.png|400px]] [[image:MRICH simulation run70 hitMap.png|400px]]<br />
|-<br />
| Figure 3.2. Test beam (left) and simulation (right) results from 120 GeV/c proton beam hit perpendicularly at the center of detector xy plane<br />
|-<br />
| [[image:MRICH run88 n103 accumulatedDisplay.png|400px]] [[image:MRICH simulation run88 hitMap.png|400px]]<br />
|-<br />
| Figure 3.3. Test beam (left) and simulation (right) results from 120 GeV/c proton beam hit perpendicularly at the 3rd quadrant of detector xy plane.<br />
|}<br />
<br />
=Second Prototype=<br />
In order to enhance detector PID performance, the next mRICH prototype will use a longer focal length (6") Fresnel lens, and smaller pixel size (3mm &times; 3mm) photon sensors. Furthermore, the readout electronics will be separated from the optical components to avoid overheating.<br />
{|<br />
|-<br />
| [[image:Prototype2drawing.png|400px]] [[image:Prototype2pic.png|700px]]<br />
|-<br />
| Figure 3.1. (left) 3D drawing of the second mRICH prototype. (right) construction of the second mRICH prototype.<br />
|}<br />
<br />
{| class="wikitable"<br />
|-<br />
! Component<br />
! Property<br />
|-<br />
| Detector holder box<br />
| Aluminum<br />
|-<br />
| Aerogel<br />
| refractive index=1.03<br />
|-<br />
| Fresnel lens<br />
| spheric acrylic Fresnel lens. focal length=6"<br />
|-<br />
| Mirror set<br />
| <br />
|-<br />
| Sensor<br />
| HAMAMATSU 13700 PMT array. Pixel size=3&times;3mm<br />
|-<br />
|}<br />
<br />
{|<br />
|-<br />
| [[image:Num sigma 6inFocalLength.png|left|500px]]<br />
|-<br />
| Figure 3.2. Separation power of modular RICH detector obtained from simulation using 6" focal length Fresnel lens with different pixel sizes. This plot indicates that with the second prototype design (green dots), the second mRICH prototype can acheive 3-sigma up to 8 GeV/c.<br />
|}<br />
<br />
=mRICH Detector System Simulation=<br />
*mRICH detector system in sPHENIX/ePHENIX. The detector system which contains 284 modules of mRICH, covers 1.0 to 2.0 rapidity.<br />
*:[[image: MRICH in ePHENIX.png |center|400px|mRICH in ePHENIX]]<br />
*:Event display of 10 negative pion tracks (view from down stream) from simulation. An enlarged view is shown on the left.<br />
*:[[image: MRICHsystem ePHENIX.png|center|400px|mRICH system in ePHENIX]]<br />
*mRICH detector system in JLEIC.<br />
*:[[image: MRICH in JLEIC.png |center|350px|mRICH in JLEIC]]</div>Pinghttp://phynp6.phy-astr.gsu.edu/eRD14/index.php?title=Modular_Ring_Imaging_Cherenkov_Detector_(mRICH)&diff=261Modular Ring Imaging Cherenkov Detector (mRICH)2017-07-12T18:19:46Z<p>Ping: /* Second Prototype */</p>
<hr />
<div>The goal of the modular aerogel RICH (mRICH) is to provide hadronic PID capability with momentum coverage from 3 to 10 GeV/c with a compact design in order to overcome the space limitations of the EIC experiments. Although the multi-layer proximity-focusing RICH design, such as ARICH at BELLE2, can achieve three-sigma K/&pi; separation at 4 GeV/c, a larger expansion volume is required for PID in higher momentum range.<br />
<br />
A multi-layer proximity-focusing RICH design increases PID separation power by increasing number of detected photons (Nγ) by adding successive layers of radiator while keeping the uncertainty of Cherenkov angle (&sigma;_&theta;) of single photon measurement. In contrast, the novel lens-based mRICH design improves the separation power by minimizing the uncertainty &sigma;_&theta; as a result of lens focusing, as shown in Figure 2.3.1 (right), which also requires a smaller coverage of the photosensor plane. <br />
<br />
=Detector Design=<br />
Modular RICH detector consist of a block of aerogel as a radiator, a Fresnel lens, a set of four-sided mirror, and a sensor plane. When charged particle passes through the aerogel, it will emit Cherenkov photons in a cone shape. These Cherenkov photons will be focused by the Fresnel lens on the sensor plane, and form a shape ring image.<br />
<br />
{|<br />
|-<br />
| [[image: Detector overview1.png |left|400px|Single 9 GeV/c pion simulation]]<br />
| [[image:Detector overview 9GeVPi center.png|left|420px|Single 9 GeV/c pion simulation]]<br />
|-<br />
| Figure 1.1 (a). Modular RICH detector in GEMC simulation<br />
| Figure 1.1 (b). Single 9 GeV/c pion simulation<br />
|}<br />
<br />
There are two advantages of the lens-based design. Firstly, the ring image is smaller and thinner because of the focusing of lens (see figure 1.2 and 1.3). Secondly, in the case that charged particle travelling parallel but off the longitudinal axis (that is, the optical principal of lens), ring image will be shifted to the central area of the sensor plane (see figure 1.4 and 1.5). Therefore, the lens-based design enhances detector PID performance, while lowers the required sensor plane area per ring.<br />
<br />
{|<br />
|-<br />
| [[image: LensFocusing withLens.png |left|800px]]<br />
|-<br />
| Figure 1.2. Lens focusing gives thinner Cherenkov ring image compare to BELLE-2 ARICH design (below)<br />
|-<br />
| [[image: BELLE2 ARICH Focusing.png |left|800px]]<br />
|-<br />
| Figure 1.3. BELL-2 ARICH design a double layer proximity focusing RICH detector. By using two different refractive indices aerogel block, in order to increase number of photons detected while keeping uncertainty of single photon measurement.<br />
|}<br />
<br />
{|<br />
|-<br />
| [[image:LensShifting withLens.png |left|800px]]<br />
|-<br />
| Figure 1.4. When the charge particle incident along the z-axis of the detector, Cherenkov ring image from the incident particle will be shifted to the central area of the sensor plane, resulting fewer photon loss, and reduce image distortion.<br />
|-<br />
| [[image: BELLE2 ARICH Shifting.png |left|800px]]<br />
|-<br />
| Figure 1.5. Cherenkov ring image from particles that are incident at the third quadrant of the detector.<br />
|}<br />
<br />
{|<br />
|-<br />
| [[image:Num sigma 6inFocalLength.png|left|500px]]<br />
|-<br />
| Figure 1.6. Separation power of modular RICH detector obtained from simulation using 6" focal length Fresnel lens with different pixel sizes<br />
|}<br />
<br />
=Fisrt Prototype and Beam Test=<br />
'''First Prototype'''<br />
{|<br />
|-<br />
| [[image: Prototype.png |center|600px|First mRICH prototype]]<br />
|-<br />
| Figure 2.1. First mRICH prototype<br />
|}<br />
<br />
{| class="wikitable"<br />
|-<br />
! Component<br />
! Property<br />
|-<br />
| Detector holder box<br />
| acrylic<br />
|-<br />
| Aerogel<br />
| refractive index=1.03<br />
|-<br />
| Fresnel lens<br />
| spheric acrylic Fresnel lens. focal length=3"<br />
|-<br />
| Mirror set<br />
| <br />
|-<br />
| Sensor<br />
| HAMAMATSU 8500 PMT array. Pixel size=6&times;6mm<br />
|-<br />
|}<br />
<br />
'''First Beam Test'''<br />
<br />
Beam test set up at Fermilab Test Beam Mtest Facility for the first modular RICH prototype detector is shown in the picture below. The detector (black box) sit at the center of a aluminium frame. On both ends of the aluminium frame are hodoscopes. Each hodoscopes consist of four horizon finger-size (1cm x 1cm) scintillators, and four vertical finger-size scintillators. On the far right of the aluminium frame was trigger paddle. The beam was coming from right to left of the picture.<br />
<br />
{|<br />
|-<br />
| [[image:BeamTestSetup2.png|left|500px]]<br />
|-<br />
| Figure 3.1. Beam test set up at Fermilab Test Beam Mtest Facility for the first modular RICH prototype detector.<br />
|}<br />
<br />
Accumulated hit maps from test beam data (right) and simulation (left) are shown in figure (3.2) and (3.3).<br />
{|<br />
|-<br />
| [[image:MRICH run70 n103 accumulatedDisplay.png|400px]] [[image:MRICH simulation run70 hitMap.png|400px]]<br />
|-<br />
| Figure 3.2. Test beam (left) and simulation (right) results from 120 GeV/c proton beam hit perpendicularly at the center of detector xy plane<br />
|-<br />
| [[image:MRICH run88 n103 accumulatedDisplay.png|400px]] [[image:MRICH simulation run88 hitMap.png|400px]]<br />
|-<br />
| Figure 3.3. Test beam (left) and simulation (right) results from 120 GeV/c proton beam hit perpendicularly at the 3rd quadrant of detector xy plane.<br />
|}<br />
<br />
=Second Prototype=<br />
{|<br />
|-<br />
| [[image:Prototype2drawing.png|400px]] [[image:Prototype2pic.png|700px]]<br />
|-<br />
| Figure 3.2. (left) 3D drawing of the second mRICH prototype. (right) construction of the second mRICH prototype.<br />
|}<br />
<br />
{| class="wikitable"<br />
|-<br />
! Component<br />
! Property<br />
|-<br />
| Detector holder box<br />
| Aluminum<br />
|-<br />
| Aerogel<br />
| refractive index=1.03<br />
|-<br />
| Fresnel lens<br />
| spheric acrylic Fresnel lens. focal length=6"<br />
|-<br />
| Mirror set<br />
| <br />
|-<br />
| Sensor<br />
| HAMAMATSU 13700 PMT array. Pixel size=3&times;3mm<br />
|-<br />
|}<br />
<br />
{|<br />
|-<br />
| [[image:Num sigma 6inFocalLength.png|left|500px]]<br />
|-<br />
| Separation power of modular RICH detector obtained from simulation using 6" focal length Fresnel lens with different pixel sizes<br />
|}<br />
<br />
=mRICH Detector System Simulation=<br />
*mRICH detector system in sPHENIX/ePHENIX. The detector system which contains 284 modules of mRICH, covers 1.0 to 2.0 rapidity.<br />
*:[[image: MRICH in ePHENIX.png |center|400px|mRICH in ePHENIX]]<br />
*:Event display of 10 negative pion tracks (view from down stream) from simulation. An enlarged view is shown on the left.<br />
*:[[image: MRICHsystem ePHENIX.png|center|400px|mRICH system in ePHENIX]]<br />
*mRICH detector system in JLEIC.<br />
*:[[image: MRICH in JLEIC.png |center|350px|mRICH in JLEIC]]</div>Pinghttp://phynp6.phy-astr.gsu.edu/eRD14/index.php?title=Modular_Ring_Imaging_Cherenkov_Detector_(mRICH)&diff=260Modular Ring Imaging Cherenkov Detector (mRICH)2017-07-12T18:18:50Z<p>Ping: /* Fisrt Prototype and Beam Test */</p>
<hr />
<div>The goal of the modular aerogel RICH (mRICH) is to provide hadronic PID capability with momentum coverage from 3 to 10 GeV/c with a compact design in order to overcome the space limitations of the EIC experiments. Although the multi-layer proximity-focusing RICH design, such as ARICH at BELLE2, can achieve three-sigma K/&pi; separation at 4 GeV/c, a larger expansion volume is required for PID in higher momentum range.<br />
<br />
A multi-layer proximity-focusing RICH design increases PID separation power by increasing number of detected photons (Nγ) by adding successive layers of radiator while keeping the uncertainty of Cherenkov angle (&sigma;_&theta;) of single photon measurement. In contrast, the novel lens-based mRICH design improves the separation power by minimizing the uncertainty &sigma;_&theta; as a result of lens focusing, as shown in Figure 2.3.1 (right), which also requires a smaller coverage of the photosensor plane. <br />
<br />
=Detector Design=<br />
Modular RICH detector consist of a block of aerogel as a radiator, a Fresnel lens, a set of four-sided mirror, and a sensor plane. When charged particle passes through the aerogel, it will emit Cherenkov photons in a cone shape. These Cherenkov photons will be focused by the Fresnel lens on the sensor plane, and form a shape ring image.<br />
<br />
{|<br />
|-<br />
| [[image: Detector overview1.png |left|400px|Single 9 GeV/c pion simulation]]<br />
| [[image:Detector overview 9GeVPi center.png|left|420px|Single 9 GeV/c pion simulation]]<br />
|-<br />
| Figure 1.1 (a). Modular RICH detector in GEMC simulation<br />
| Figure 1.1 (b). Single 9 GeV/c pion simulation<br />
|}<br />
<br />
There are two advantages of the lens-based design. Firstly, the ring image is smaller and thinner because of the focusing of lens (see figure 1.2 and 1.3). Secondly, in the case that charged particle travelling parallel but off the longitudinal axis (that is, the optical principal of lens), ring image will be shifted to the central area of the sensor plane (see figure 1.4 and 1.5). Therefore, the lens-based design enhances detector PID performance, while lowers the required sensor plane area per ring.<br />
<br />
{|<br />
|-<br />
| [[image: LensFocusing withLens.png |left|800px]]<br />
|-<br />
| Figure 1.2. Lens focusing gives thinner Cherenkov ring image compare to BELLE-2 ARICH design (below)<br />
|-<br />
| [[image: BELLE2 ARICH Focusing.png |left|800px]]<br />
|-<br />
| Figure 1.3. BELL-2 ARICH design a double layer proximity focusing RICH detector. By using two different refractive indices aerogel block, in order to increase number of photons detected while keeping uncertainty of single photon measurement.<br />
|}<br />
<br />
{|<br />
|-<br />
| [[image:LensShifting withLens.png |left|800px]]<br />
|-<br />
| Figure 1.4. When the charge particle incident along the z-axis of the detector, Cherenkov ring image from the incident particle will be shifted to the central area of the sensor plane, resulting fewer photon loss, and reduce image distortion.<br />
|-<br />
| [[image: BELLE2 ARICH Shifting.png |left|800px]]<br />
|-<br />
| Figure 1.5. Cherenkov ring image from particles that are incident at the third quadrant of the detector.<br />
|}<br />
<br />
{|<br />
|-<br />
| [[image:Num sigma 6inFocalLength.png|left|500px]]<br />
|-<br />
| Figure 1.6. Separation power of modular RICH detector obtained from simulation using 6" focal length Fresnel lens with different pixel sizes<br />
|}<br />
<br />
=Fisrt Prototype and Beam Test=<br />
'''First Prototype'''<br />
{|<br />
|-<br />
| [[image: Prototype.png |center|600px|First mRICH prototype]]<br />
|-<br />
| Figure 2.1. First mRICH prototype<br />
|}<br />
<br />
{| class="wikitable"<br />
|-<br />
! Component<br />
! Property<br />
|-<br />
| Detector holder box<br />
| acrylic<br />
|-<br />
| Aerogel<br />
| refractive index=1.03<br />
|-<br />
| Fresnel lens<br />
| spheric acrylic Fresnel lens. focal length=3"<br />
|-<br />
| Mirror set<br />
| <br />
|-<br />
| Sensor<br />
| HAMAMATSU 8500 PMT array. Pixel size=6&times;6mm<br />
|-<br />
|}<br />
<br />
'''First Beam Test'''<br />
<br />
Beam test set up at Fermilab Test Beam Mtest Facility for the first modular RICH prototype detector is shown in the picture below. The detector (black box) sit at the center of a aluminium frame. On both ends of the aluminium frame are hodoscopes. Each hodoscopes consist of four horizon finger-size (1cm x 1cm) scintillators, and four vertical finger-size scintillators. On the far right of the aluminium frame was trigger paddle. The beam was coming from right to left of the picture.<br />
<br />
{|<br />
|-<br />
| [[image:BeamTestSetup2.png|left|500px]]<br />
|-<br />
| Figure 3.1. Beam test set up at Fermilab Test Beam Mtest Facility for the first modular RICH prototype detector.<br />
|}<br />
<br />
Accumulated hit maps from test beam data (right) and simulation (left) are shown in figure (3.2) and (3.3).<br />
{|<br />
|-<br />
| [[image:MRICH run70 n103 accumulatedDisplay.png|400px]] [[image:MRICH simulation run70 hitMap.png|400px]]<br />
|-<br />
| Figure 3.2. Test beam (left) and simulation (right) results from 120 GeV/c proton beam hit perpendicularly at the center of detector xy plane<br />
|-<br />
| [[image:MRICH run88 n103 accumulatedDisplay.png|400px]] [[image:MRICH simulation run88 hitMap.png|400px]]<br />
|-<br />
| Figure 3.3. Test beam (left) and simulation (right) results from 120 GeV/c proton beam hit perpendicularly at the 3rd quadrant of detector xy plane.<br />
|}<br />
<br />
=Second Prototype=<br />
{|<br />
|-<br />
| [[image:Prototype2drawing.png|400px]] [[image:Prototype2pic.png|700px]]<br />
|-<br />
| Figure 3.2. (left) 3D drawing of the second mRICH prototype. (right) construction of the second mRICH prototype.<br />
|}<br />
<br />
{| class="wikitable"<br />
|-<br />
! Component<br />
! Property<br />
|-<br />
| Detector holder box<br />
| Aluminum<br />
|-<br />
| Aerogel<br />
| refractive index=1.03<br />
|-<br />
| Fresnel lens<br />
| spheric acrylic Fresnel lens. focal length=6"<br />
|-<br />
| Mirror set<br />
| <br />
|-<br />
| Sensor<br />
| HAMAMATSU 13700 PMT array. Pixel size=3&times;3mm<br />
|-<br />
|}<br />
<br />
=mRICH Detector System Simulation=<br />
*mRICH detector system in sPHENIX/ePHENIX. The detector system which contains 284 modules of mRICH, covers 1.0 to 2.0 rapidity.<br />
*:[[image: MRICH in ePHENIX.png |center|400px|mRICH in ePHENIX]]<br />
*:Event display of 10 negative pion tracks (view from down stream) from simulation. An enlarged view is shown on the left.<br />
*:[[image: MRICHsystem ePHENIX.png|center|400px|mRICH system in ePHENIX]]<br />
*mRICH detector system in JLEIC.<br />
*:[[image: MRICH in JLEIC.png |center|350px|mRICH in JLEIC]]</div>Pinghttp://phynp6.phy-astr.gsu.edu/eRD14/index.php?title=Modular_Ring_Imaging_Cherenkov_Detector_(mRICH)&diff=259Modular Ring Imaging Cherenkov Detector (mRICH)2017-07-12T18:13:25Z<p>Ping: /* mRICH Detector System Simulation */</p>
<hr />
<div>The goal of the modular aerogel RICH (mRICH) is to provide hadronic PID capability with momentum coverage from 3 to 10 GeV/c with a compact design in order to overcome the space limitations of the EIC experiments. Although the multi-layer proximity-focusing RICH design, such as ARICH at BELLE2, can achieve three-sigma K/&pi; separation at 4 GeV/c, a larger expansion volume is required for PID in higher momentum range.<br />
<br />
A multi-layer proximity-focusing RICH design increases PID separation power by increasing number of detected photons (Nγ) by adding successive layers of radiator while keeping the uncertainty of Cherenkov angle (&sigma;_&theta;) of single photon measurement. In contrast, the novel lens-based mRICH design improves the separation power by minimizing the uncertainty &sigma;_&theta; as a result of lens focusing, as shown in Figure 2.3.1 (right), which also requires a smaller coverage of the photosensor plane. <br />
<br />
=Detector Design=<br />
Modular RICH detector consist of a block of aerogel as a radiator, a Fresnel lens, a set of four-sided mirror, and a sensor plane. When charged particle passes through the aerogel, it will emit Cherenkov photons in a cone shape. These Cherenkov photons will be focused by the Fresnel lens on the sensor plane, and form a shape ring image.<br />
<br />
{|<br />
|-<br />
| [[image: Detector overview1.png |left|400px|Single 9 GeV/c pion simulation]]<br />
| [[image:Detector overview 9GeVPi center.png|left|420px|Single 9 GeV/c pion simulation]]<br />
|-<br />
| Figure 1.1 (a). Modular RICH detector in GEMC simulation<br />
| Figure 1.1 (b). Single 9 GeV/c pion simulation<br />
|}<br />
<br />
There are two advantages of the lens-based design. Firstly, the ring image is smaller and thinner because of the focusing of lens (see figure 1.2 and 1.3). Secondly, in the case that charged particle travelling parallel but off the longitudinal axis (that is, the optical principal of lens), ring image will be shifted to the central area of the sensor plane (see figure 1.4 and 1.5). Therefore, the lens-based design enhances detector PID performance, while lowers the required sensor plane area per ring.<br />
<br />
{|<br />
|-<br />
| [[image: LensFocusing withLens.png |left|800px]]<br />
|-<br />
| Figure 1.2. Lens focusing gives thinner Cherenkov ring image compare to BELLE-2 ARICH design (below)<br />
|-<br />
| [[image: BELLE2 ARICH Focusing.png |left|800px]]<br />
|-<br />
| Figure 1.3. BELL-2 ARICH design a double layer proximity focusing RICH detector. By using two different refractive indices aerogel block, in order to increase number of photons detected while keeping uncertainty of single photon measurement.<br />
|}<br />
<br />
{|<br />
|-<br />
| [[image:LensShifting withLens.png |left|800px]]<br />
|-<br />
| Figure 1.4. When the charge particle incident along the z-axis of the detector, Cherenkov ring image from the incident particle will be shifted to the central area of the sensor plane, resulting fewer photon loss, and reduce image distortion.<br />
|-<br />
| [[image: BELLE2 ARICH Shifting.png |left|800px]]<br />
|-<br />
| Figure 1.5. Cherenkov ring image from particles that are incident at the third quadrant of the detector.<br />
|}<br />
<br />
{|<br />
|-<br />
| [[image:Num sigma 6inFocalLength.png|left|500px]]<br />
|-<br />
| Figure 1.6. Separation power of modular RICH detector obtained from simulation using 6" focal length Fresnel lens with different pixel sizes<br />
|}<br />
<br />
=Fisrt Prototype and Beam Test=<br />
{|<br />
|-<br />
| [[image: Prototype.png |center|600px|First mRICH prototype]]<br />
|-<br />
| Figure 2.1. First mRICH prototype<br />
|}<br />
<br />
{| class="wikitable"<br />
|-<br />
! Component<br />
! Property<br />
|-<br />
| Detector holder box<br />
| acrylic<br />
|-<br />
| Aerogel<br />
| refractive index=1.03<br />
|-<br />
| Fresnel lens<br />
| spheric acrylic Fresnel lens. focal length=3"<br />
|-<br />
| Mirror set<br />
| <br />
|-<br />
| Sensor<br />
| HAMAMATSU 8500 PMT array. Pixel size=6&times;6mm<br />
|-<br />
|}<br />
<br />
Beam test set up at Fermilab Test Beam Mtest Facility for the first modular RICH prototype detector is shown in the picture below. The detector (black box) sit at the center of a aluminium frame. On both ends of the aluminium frame are hodoscopes. Each hodoscopes consist of four horizon finger-size (1cm x 1cm) scintillators, and four vertical finger-size scintillators. On the far right of the aluminium frame was trigger paddle. The beam was coming from right to left of the picture.<br />
<br />
{|<br />
|-<br />
| [[image:BeamTestSetup2.png|left|500px]]<br />
|-<br />
| Figure 3.1. Beam test set up at Fermilab Test Beam Mtest Facility for the first modular RICH prototype detector.<br />
|}<br />
<br />
Accumulated hit maps from test beam data (right) and simulation (left) are shown in figure (3.2) and (3.3).<br />
{|<br />
|-<br />
| [[image:MRICH run70 n103 accumulatedDisplay.png|400px]] [[image:MRICH simulation run70 hitMap.png|400px]]<br />
|-<br />
| Figure 3.2. Test beam (left) and simulation (right) results from 120 GeV/c proton beam hit perpendicularly at the center of detector xy plane<br />
|-<br />
| [[image:MRICH run88 n103 accumulatedDisplay.png|400px]] [[image:MRICH simulation run88 hitMap.png|400px]]<br />
|-<br />
| Figure 3.3. Test beam (left) and simulation (right) results from 120 GeV/c proton beam hit perpendicularly at the 3rd quadrant of detector xy plane.<br />
|}<br />
<br />
=Second Prototype=<br />
{|<br />
|-<br />
| [[image:Prototype2drawing.png|400px]] [[image:Prototype2pic.png|700px]]<br />
|-<br />
| Figure 3.2. (left) 3D drawing of the second mRICH prototype. (right) construction of the second mRICH prototype.<br />
|}<br />
<br />
{| class="wikitable"<br />
|-<br />
! Component<br />
! Property<br />
|-<br />
| Detector holder box<br />
| Aluminum<br />
|-<br />
| Aerogel<br />
| refractive index=1.03<br />
|-<br />
| Fresnel lens<br />
| spheric acrylic Fresnel lens. focal length=6"<br />
|-<br />
| Mirror set<br />
| <br />
|-<br />
| Sensor<br />
| HAMAMATSU 13700 PMT array. Pixel size=3&times;3mm<br />
|-<br />
|}<br />
<br />
=mRICH Detector System Simulation=<br />
*mRICH detector system in sPHENIX/ePHENIX. The detector system which contains 284 modules of mRICH, covers 1.0 to 2.0 rapidity.<br />
*:[[image: MRICH in ePHENIX.png |center|400px|mRICH in ePHENIX]]<br />
*:Event display of 10 negative pion tracks (view from down stream) from simulation. An enlarged view is shown on the left.<br />
*:[[image: MRICHsystem ePHENIX.png|center|400px|mRICH system in ePHENIX]]<br />
*mRICH detector system in JLEIC.<br />
*:[[image: MRICH in JLEIC.png |center|350px|mRICH in JLEIC]]</div>Pinghttp://phynp6.phy-astr.gsu.edu/eRD14/index.php?title=Modular_Ring_Imaging_Cherenkov_Detector_(mRICH)&diff=258Modular Ring Imaging Cherenkov Detector (mRICH)2017-07-12T18:11:57Z<p>Ping: /* mRICH Detector System Simulation */</p>
<hr />
<div>The goal of the modular aerogel RICH (mRICH) is to provide hadronic PID capability with momentum coverage from 3 to 10 GeV/c with a compact design in order to overcome the space limitations of the EIC experiments. Although the multi-layer proximity-focusing RICH design, such as ARICH at BELLE2, can achieve three-sigma K/&pi; separation at 4 GeV/c, a larger expansion volume is required for PID in higher momentum range.<br />
<br />
A multi-layer proximity-focusing RICH design increases PID separation power by increasing number of detected photons (Nγ) by adding successive layers of radiator while keeping the uncertainty of Cherenkov angle (&sigma;_&theta;) of single photon measurement. In contrast, the novel lens-based mRICH design improves the separation power by minimizing the uncertainty &sigma;_&theta; as a result of lens focusing, as shown in Figure 2.3.1 (right), which also requires a smaller coverage of the photosensor plane. <br />
<br />
=Detector Design=<br />
Modular RICH detector consist of a block of aerogel as a radiator, a Fresnel lens, a set of four-sided mirror, and a sensor plane. When charged particle passes through the aerogel, it will emit Cherenkov photons in a cone shape. These Cherenkov photons will be focused by the Fresnel lens on the sensor plane, and form a shape ring image.<br />
<br />
{|<br />
|-<br />
| [[image: Detector overview1.png |left|400px|Single 9 GeV/c pion simulation]]<br />
| [[image:Detector overview 9GeVPi center.png|left|420px|Single 9 GeV/c pion simulation]]<br />
|-<br />
| Figure 1.1 (a). Modular RICH detector in GEMC simulation<br />
| Figure 1.1 (b). Single 9 GeV/c pion simulation<br />
|}<br />
<br />
There are two advantages of the lens-based design. Firstly, the ring image is smaller and thinner because of the focusing of lens (see figure 1.2 and 1.3). Secondly, in the case that charged particle travelling parallel but off the longitudinal axis (that is, the optical principal of lens), ring image will be shifted to the central area of the sensor plane (see figure 1.4 and 1.5). Therefore, the lens-based design enhances detector PID performance, while lowers the required sensor plane area per ring.<br />
<br />
{|<br />
|-<br />
| [[image: LensFocusing withLens.png |left|800px]]<br />
|-<br />
| Figure 1.2. Lens focusing gives thinner Cherenkov ring image compare to BELLE-2 ARICH design (below)<br />
|-<br />
| [[image: BELLE2 ARICH Focusing.png |left|800px]]<br />
|-<br />
| Figure 1.3. BELL-2 ARICH design a double layer proximity focusing RICH detector. By using two different refractive indices aerogel block, in order to increase number of photons detected while keeping uncertainty of single photon measurement.<br />
|}<br />
<br />
{|<br />
|-<br />
| [[image:LensShifting withLens.png |left|800px]]<br />
|-<br />
| Figure 1.4. When the charge particle incident along the z-axis of the detector, Cherenkov ring image from the incident particle will be shifted to the central area of the sensor plane, resulting fewer photon loss, and reduce image distortion.<br />
|-<br />
| [[image: BELLE2 ARICH Shifting.png |left|800px]]<br />
|-<br />
| Figure 1.5. Cherenkov ring image from particles that are incident at the third quadrant of the detector.<br />
|}<br />
<br />
{|<br />
|-<br />
| [[image:Num sigma 6inFocalLength.png|left|500px]]<br />
|-<br />
| Figure 1.6. Separation power of modular RICH detector obtained from simulation using 6" focal length Fresnel lens with different pixel sizes<br />
|}<br />
<br />
=Fisrt Prototype and Beam Test=<br />
{|<br />
|-<br />
| [[image: Prototype.png |center|600px|First mRICH prototype]]<br />
|-<br />
| Figure 2.1. First mRICH prototype<br />
|}<br />
<br />
{| class="wikitable"<br />
|-<br />
! Component<br />
! Property<br />
|-<br />
| Detector holder box<br />
| acrylic<br />
|-<br />
| Aerogel<br />
| refractive index=1.03<br />
|-<br />
| Fresnel lens<br />
| spheric acrylic Fresnel lens. focal length=3"<br />
|-<br />
| Mirror set<br />
| <br />
|-<br />
| Sensor<br />
| HAMAMATSU 8500 PMT array. Pixel size=6&times;6mm<br />
|-<br />
|}<br />
<br />
Beam test set up at Fermilab Test Beam Mtest Facility for the first modular RICH prototype detector is shown in the picture below. The detector (black box) sit at the center of a aluminium frame. On both ends of the aluminium frame are hodoscopes. Each hodoscopes consist of four horizon finger-size (1cm x 1cm) scintillators, and four vertical finger-size scintillators. On the far right of the aluminium frame was trigger paddle. The beam was coming from right to left of the picture.<br />
<br />
{|<br />
|-<br />
| [[image:BeamTestSetup2.png|left|500px]]<br />
|-<br />
| Figure 3.1. Beam test set up at Fermilab Test Beam Mtest Facility for the first modular RICH prototype detector.<br />
|}<br />
<br />
Accumulated hit maps from test beam data (right) and simulation (left) are shown in figure (3.2) and (3.3).<br />
{|<br />
|-<br />
| [[image:MRICH run70 n103 accumulatedDisplay.png|400px]] [[image:MRICH simulation run70 hitMap.png|400px]]<br />
|-<br />
| Figure 3.2. Test beam (left) and simulation (right) results from 120 GeV/c proton beam hit perpendicularly at the center of detector xy plane<br />
|-<br />
| [[image:MRICH run88 n103 accumulatedDisplay.png|400px]] [[image:MRICH simulation run88 hitMap.png|400px]]<br />
|-<br />
| Figure 3.3. Test beam (left) and simulation (right) results from 120 GeV/c proton beam hit perpendicularly at the 3rd quadrant of detector xy plane.<br />
|}<br />
<br />
=Second Prototype=<br />
{|<br />
|-<br />
| [[image:Prototype2drawing.png|400px]] [[image:Prototype2pic.png|700px]]<br />
|-<br />
| Figure 3.2. (left) 3D drawing of the second mRICH prototype. (right) construction of the second mRICH prototype.<br />
|}<br />
<br />
{| class="wikitable"<br />
|-<br />
! Component<br />
! Property<br />
|-<br />
| Detector holder box<br />
| Aluminum<br />
|-<br />
| Aerogel<br />
| refractive index=1.03<br />
|-<br />
| Fresnel lens<br />
| spheric acrylic Fresnel lens. focal length=6"<br />
|-<br />
| Mirror set<br />
| <br />
|-<br />
| Sensor<br />
| HAMAMATSU 13700 PMT array. Pixel size=3&times;3mm<br />
|-<br />
|}<br />
<br />
=mRICH Detector System Simulation=<br />
*mRICH detector system in sPHENIX/ePHENIX. The detector system which contains 284 modules of mRICH, covers 1.0 to 2.0 rapidity.<br />
*:[[image: MRICH in ePHENIX.png |center|400px|mRICH in ePHENIX]]<br />
*:Event display of 10 negative pion tracks (view from down stream) from simulation. An enlarged view is shown on the left.<br />
*:[[image: MRICHsystem ePHENIX.png|center|400px|mRICH system in ePHENIX]]<br />
*mRICH detector system in JLEIC.<br />
*:[[image: MRICH in JLEIC.png |center|300px|mRICH in JLEIC]]</div>Pinghttp://phynp6.phy-astr.gsu.edu/eRD14/index.php?title=Modular_Ring_Imaging_Cherenkov_Detector_(mRICH)&diff=257Modular Ring Imaging Cherenkov Detector (mRICH)2017-07-12T18:03:43Z<p>Ping: /* mRICH Detector System Simulation */</p>
<hr />
<div>The goal of the modular aerogel RICH (mRICH) is to provide hadronic PID capability with momentum coverage from 3 to 10 GeV/c with a compact design in order to overcome the space limitations of the EIC experiments. Although the multi-layer proximity-focusing RICH design, such as ARICH at BELLE2, can achieve three-sigma K/&pi; separation at 4 GeV/c, a larger expansion volume is required for PID in higher momentum range.<br />
<br />
A multi-layer proximity-focusing RICH design increases PID separation power by increasing number of detected photons (Nγ) by adding successive layers of radiator while keeping the uncertainty of Cherenkov angle (&sigma;_&theta;) of single photon measurement. In contrast, the novel lens-based mRICH design improves the separation power by minimizing the uncertainty &sigma;_&theta; as a result of lens focusing, as shown in Figure 2.3.1 (right), which also requires a smaller coverage of the photosensor plane. <br />
<br />
=Detector Design=<br />
Modular RICH detector consist of a block of aerogel as a radiator, a Fresnel lens, a set of four-sided mirror, and a sensor plane. When charged particle passes through the aerogel, it will emit Cherenkov photons in a cone shape. These Cherenkov photons will be focused by the Fresnel lens on the sensor plane, and form a shape ring image.<br />
<br />
{|<br />
|-<br />
| [[image: Detector overview1.png |left|400px|Single 9 GeV/c pion simulation]]<br />
| [[image:Detector overview 9GeVPi center.png|left|420px|Single 9 GeV/c pion simulation]]<br />
|-<br />
| Figure 1.1 (a). Modular RICH detector in GEMC simulation<br />
| Figure 1.1 (b). Single 9 GeV/c pion simulation<br />
|}<br />
<br />
There are two advantages of the lens-based design. Firstly, the ring image is smaller and thinner because of the focusing of lens (see figure 1.2 and 1.3). Secondly, in the case that charged particle travelling parallel but off the longitudinal axis (that is, the optical principal of lens), ring image will be shifted to the central area of the sensor plane (see figure 1.4 and 1.5). Therefore, the lens-based design enhances detector PID performance, while lowers the required sensor plane area per ring.<br />
<br />
{|<br />
|-<br />
| [[image: LensFocusing withLens.png |left|800px]]<br />
|-<br />
| Figure 1.2. Lens focusing gives thinner Cherenkov ring image compare to BELLE-2 ARICH design (below)<br />
|-<br />
| [[image: BELLE2 ARICH Focusing.png |left|800px]]<br />
|-<br />
| Figure 1.3. BELL-2 ARICH design a double layer proximity focusing RICH detector. By using two different refractive indices aerogel block, in order to increase number of photons detected while keeping uncertainty of single photon measurement.<br />
|}<br />
<br />
{|<br />
|-<br />
| [[image:LensShifting withLens.png |left|800px]]<br />
|-<br />
| Figure 1.4. When the charge particle incident along the z-axis of the detector, Cherenkov ring image from the incident particle will be shifted to the central area of the sensor plane, resulting fewer photon loss, and reduce image distortion.<br />
|-<br />
| [[image: BELLE2 ARICH Shifting.png |left|800px]]<br />
|-<br />
| Figure 1.5. Cherenkov ring image from particles that are incident at the third quadrant of the detector.<br />
|}<br />
<br />
{|<br />
|-<br />
| [[image:Num sigma 6inFocalLength.png|left|500px]]<br />
|-<br />
| Figure 1.6. Separation power of modular RICH detector obtained from simulation using 6" focal length Fresnel lens with different pixel sizes<br />
|}<br />
<br />
=Fisrt Prototype and Beam Test=<br />
{|<br />
|-<br />
| [[image: Prototype.png |center|600px|First mRICH prototype]]<br />
|-<br />
| Figure 2.1. First mRICH prototype<br />
|}<br />
<br />
{| class="wikitable"<br />
|-<br />
! Component<br />
! Property<br />
|-<br />
| Detector holder box<br />
| acrylic<br />
|-<br />
| Aerogel<br />
| refractive index=1.03<br />
|-<br />
| Fresnel lens<br />
| spheric acrylic Fresnel lens. focal length=3"<br />
|-<br />
| Mirror set<br />
| <br />
|-<br />
| Sensor<br />
| HAMAMATSU 8500 PMT array. Pixel size=6&times;6mm<br />
|-<br />
|}<br />
<br />
Beam test set up at Fermilab Test Beam Mtest Facility for the first modular RICH prototype detector is shown in the picture below. The detector (black box) sit at the center of a aluminium frame. On both ends of the aluminium frame are hodoscopes. Each hodoscopes consist of four horizon finger-size (1cm x 1cm) scintillators, and four vertical finger-size scintillators. On the far right of the aluminium frame was trigger paddle. The beam was coming from right to left of the picture.<br />
<br />
{|<br />
|-<br />
| [[image:BeamTestSetup2.png|left|500px]]<br />
|-<br />
| Figure 3.1. Beam test set up at Fermilab Test Beam Mtest Facility for the first modular RICH prototype detector.<br />
|}<br />
<br />
Accumulated hit maps from test beam data (right) and simulation (left) are shown in figure (3.2) and (3.3).<br />
{|<br />
|-<br />
| [[image:MRICH run70 n103 accumulatedDisplay.png|400px]] [[image:MRICH simulation run70 hitMap.png|400px]]<br />
|-<br />
| Figure 3.2. Test beam (left) and simulation (right) results from 120 GeV/c proton beam hit perpendicularly at the center of detector xy plane<br />
|-<br />
| [[image:MRICH run88 n103 accumulatedDisplay.png|400px]] [[image:MRICH simulation run88 hitMap.png|400px]]<br />
|-<br />
| Figure 3.3. Test beam (left) and simulation (right) results from 120 GeV/c proton beam hit perpendicularly at the 3rd quadrant of detector xy plane.<br />
|}<br />
<br />
=Second Prototype=<br />
{|<br />
|-<br />
| [[image:Prototype2drawing.png|400px]] [[image:Prototype2pic.png|700px]]<br />
|-<br />
| Figure 3.2. (left) 3D drawing of the second mRICH prototype. (right) construction of the second mRICH prototype.<br />
|}<br />
<br />
{| class="wikitable"<br />
|-<br />
! Component<br />
! Property<br />
|-<br />
| Detector holder box<br />
| Aluminum<br />
|-<br />
| Aerogel<br />
| refractive index=1.03<br />
|-<br />
| Fresnel lens<br />
| spheric acrylic Fresnel lens. focal length=6"<br />
|-<br />
| Mirror set<br />
| <br />
|-<br />
| Sensor<br />
| HAMAMATSU 13700 PMT array. Pixel size=3&times;3mm<br />
|-<br />
|}<br />
<br />
=mRICH Detector System Simulation=<br />
*sPHENIX/ePHENIX<br />
*; [[image: MRICH in ePHENIX.png |center|400px|mRICH in ePHENIX]]<br />
*;[[image: MRICHsystem ePHENIX.png|center|400px|mRICH system in ePHENIX]]<br />
*JLEIC<br />
*;[[image: MRICH in JLEIC.png |center|300px|mRICH in JLEIC]]</div>Pinghttp://phynp6.phy-astr.gsu.edu/eRD14/index.php?title=File:MRICHsystem_ePHENIX.png&diff=256File:MRICHsystem ePHENIX.png2017-07-12T18:02:28Z<p>Ping: </p>
<hr />
<div></div>Pinghttp://phynp6.phy-astr.gsu.edu/eRD14/index.php?title=Modular_Ring_Imaging_Cherenkov_Detector_(mRICH)&diff=255Modular Ring Imaging Cherenkov Detector (mRICH)2017-07-12T17:48:52Z<p>Ping: /* mRICH Detector System Simulation */</p>
<hr />
<div>The goal of the modular aerogel RICH (mRICH) is to provide hadronic PID capability with momentum coverage from 3 to 10 GeV/c with a compact design in order to overcome the space limitations of the EIC experiments. Although the multi-layer proximity-focusing RICH design, such as ARICH at BELLE2, can achieve three-sigma K/&pi; separation at 4 GeV/c, a larger expansion volume is required for PID in higher momentum range.<br />
<br />
A multi-layer proximity-focusing RICH design increases PID separation power by increasing number of detected photons (Nγ) by adding successive layers of radiator while keeping the uncertainty of Cherenkov angle (&sigma;_&theta;) of single photon measurement. In contrast, the novel lens-based mRICH design improves the separation power by minimizing the uncertainty &sigma;_&theta; as a result of lens focusing, as shown in Figure 2.3.1 (right), which also requires a smaller coverage of the photosensor plane. <br />
<br />
=Detector Design=<br />
Modular RICH detector consist of a block of aerogel as a radiator, a Fresnel lens, a set of four-sided mirror, and a sensor plane. When charged particle passes through the aerogel, it will emit Cherenkov photons in a cone shape. These Cherenkov photons will be focused by the Fresnel lens on the sensor plane, and form a shape ring image.<br />
<br />
{|<br />
|-<br />
| [[image: Detector overview1.png |left|400px|Single 9 GeV/c pion simulation]]<br />
| [[image:Detector overview 9GeVPi center.png|left|420px|Single 9 GeV/c pion simulation]]<br />
|-<br />
| Figure 1.1 (a). Modular RICH detector in GEMC simulation<br />
| Figure 1.1 (b). Single 9 GeV/c pion simulation<br />
|}<br />
<br />
There are two advantages of the lens-based design. Firstly, the ring image is smaller and thinner because of the focusing of lens (see figure 1.2 and 1.3). Secondly, in the case that charged particle travelling parallel but off the longitudinal axis (that is, the optical principal of lens), ring image will be shifted to the central area of the sensor plane (see figure 1.4 and 1.5). Therefore, the lens-based design enhances detector PID performance, while lowers the required sensor plane area per ring.<br />
<br />
{|<br />
|-<br />
| [[image: LensFocusing withLens.png |left|800px]]<br />
|-<br />
| Figure 1.2. Lens focusing gives thinner Cherenkov ring image compare to BELLE-2 ARICH design (below)<br />
|-<br />
| [[image: BELLE2 ARICH Focusing.png |left|800px]]<br />
|-<br />
| Figure 1.3. BELL-2 ARICH design a double layer proximity focusing RICH detector. By using two different refractive indices aerogel block, in order to increase number of photons detected while keeping uncertainty of single photon measurement.<br />
|}<br />
<br />
{|<br />
|-<br />
| [[image:LensShifting withLens.png |left|800px]]<br />
|-<br />
| Figure 1.4. When the charge particle incident along the z-axis of the detector, Cherenkov ring image from the incident particle will be shifted to the central area of the sensor plane, resulting fewer photon loss, and reduce image distortion.<br />
|-<br />
| [[image: BELLE2 ARICH Shifting.png |left|800px]]<br />
|-<br />
| Figure 1.5. Cherenkov ring image from particles that are incident at the third quadrant of the detector.<br />
|}<br />
<br />
{|<br />
|-<br />
| [[image:Num sigma 6inFocalLength.png|left|500px]]<br />
|-<br />
| Figure 1.6. Separation power of modular RICH detector obtained from simulation using 6" focal length Fresnel lens with different pixel sizes<br />
|}<br />
<br />
=Fisrt Prototype and Beam Test=<br />
{|<br />
|-<br />
| [[image: Prototype.png |center|600px|First mRICH prototype]]<br />
|-<br />
| Figure 2.1. First mRICH prototype<br />
|}<br />
<br />
{| class="wikitable"<br />
|-<br />
! Component<br />
! Property<br />
|-<br />
| Detector holder box<br />
| acrylic<br />
|-<br />
| Aerogel<br />
| refractive index=1.03<br />
|-<br />
| Fresnel lens<br />
| spheric acrylic Fresnel lens. focal length=3"<br />
|-<br />
| Mirror set<br />
| <br />
|-<br />
| Sensor<br />
| HAMAMATSU 8500 PMT array. Pixel size=6&times;6mm<br />
|-<br />
|}<br />
<br />
Beam test set up at Fermilab Test Beam Mtest Facility for the first modular RICH prototype detector is shown in the picture below. The detector (black box) sit at the center of a aluminium frame. On both ends of the aluminium frame are hodoscopes. Each hodoscopes consist of four horizon finger-size (1cm x 1cm) scintillators, and four vertical finger-size scintillators. On the far right of the aluminium frame was trigger paddle. The beam was coming from right to left of the picture.<br />
<br />
{|<br />
|-<br />
| [[image:BeamTestSetup2.png|left|500px]]<br />
|-<br />
| Figure 3.1. Beam test set up at Fermilab Test Beam Mtest Facility for the first modular RICH prototype detector.<br />
|}<br />
<br />
Accumulated hit maps from test beam data (right) and simulation (left) are shown in figure (3.2) and (3.3).<br />
{|<br />
|-<br />
| [[image:MRICH run70 n103 accumulatedDisplay.png|400px]] [[image:MRICH simulation run70 hitMap.png|400px]]<br />
|-<br />
| Figure 3.2. Test beam (left) and simulation (right) results from 120 GeV/c proton beam hit perpendicularly at the center of detector xy plane<br />
|-<br />
| [[image:MRICH run88 n103 accumulatedDisplay.png|400px]] [[image:MRICH simulation run88 hitMap.png|400px]]<br />
|-<br />
| Figure 3.3. Test beam (left) and simulation (right) results from 120 GeV/c proton beam hit perpendicularly at the 3rd quadrant of detector xy plane.<br />
|}<br />
<br />
=Second Prototype=<br />
{|<br />
|-<br />
| [[image:Prototype2drawing.png|400px]] [[image:Prototype2pic.png|700px]]<br />
|-<br />
| Figure 3.2. (left) 3D drawing of the second mRICH prototype. (right) construction of the second mRICH prototype.<br />
|}<br />
<br />
{| class="wikitable"<br />
|-<br />
! Component<br />
! Property<br />
|-<br />
| Detector holder box<br />
| Aluminum<br />
|-<br />
| Aerogel<br />
| refractive index=1.03<br />
|-<br />
| Fresnel lens<br />
| spheric acrylic Fresnel lens. focal length=6"<br />
|-<br />
| Mirror set<br />
| <br />
|-<br />
| Sensor<br />
| HAMAMATSU 13700 PMT array. Pixel size=3&times;3mm<br />
|-<br />
|}<br />
<br />
=mRICH Detector System Simulation=<br />
*sPHENIX/ePHENIX<br />
*; [[image: MRICH in ePHENIX.png |center|600px|mRICH in ePHENIX]]<br />
*JLEIC<br />
*;[[image: MRICH in JLEIC.png |center|500px|mRICH in JLEIC]]</div>Pinghttp://phynp6.phy-astr.gsu.edu/eRD14/index.php?title=File:MRICH_in_JLEIC.png&diff=254File:MRICH in JLEIC.png2017-07-12T17:47:29Z<p>Ping: Ping uploaded a new version of File:MRICH in JLEIC.png</p>
<hr />
<div></div>Pinghttp://phynp6.phy-astr.gsu.edu/eRD14/index.php?title=File:MRICH_in_ePHENIX.png&diff=253File:MRICH in ePHENIX.png2017-07-12T17:44:15Z<p>Ping: Ping uploaded a new version of File:MRICH in ePHENIX.png</p>
<hr />
<div></div>Pinghttp://phynp6.phy-astr.gsu.edu/eRD14/index.php?title=Modular_Ring_Imaging_Cherenkov_Detector_(mRICH)&diff=252Modular Ring Imaging Cherenkov Detector (mRICH)2017-07-12T17:40:47Z<p>Ping: /* mRICH Detector System Simulation */</p>
<hr />
<div>The goal of the modular aerogel RICH (mRICH) is to provide hadronic PID capability with momentum coverage from 3 to 10 GeV/c with a compact design in order to overcome the space limitations of the EIC experiments. Although the multi-layer proximity-focusing RICH design, such as ARICH at BELLE2, can achieve three-sigma K/&pi; separation at 4 GeV/c, a larger expansion volume is required for PID in higher momentum range.<br />
<br />
A multi-layer proximity-focusing RICH design increases PID separation power by increasing number of detected photons (Nγ) by adding successive layers of radiator while keeping the uncertainty of Cherenkov angle (&sigma;_&theta;) of single photon measurement. In contrast, the novel lens-based mRICH design improves the separation power by minimizing the uncertainty &sigma;_&theta; as a result of lens focusing, as shown in Figure 2.3.1 (right), which also requires a smaller coverage of the photosensor plane. <br />
<br />
=Detector Design=<br />
Modular RICH detector consist of a block of aerogel as a radiator, a Fresnel lens, a set of four-sided mirror, and a sensor plane. When charged particle passes through the aerogel, it will emit Cherenkov photons in a cone shape. These Cherenkov photons will be focused by the Fresnel lens on the sensor plane, and form a shape ring image.<br />
<br />
{|<br />
|-<br />
| [[image: Detector overview1.png |left|400px|Single 9 GeV/c pion simulation]]<br />
| [[image:Detector overview 9GeVPi center.png|left|420px|Single 9 GeV/c pion simulation]]<br />
|-<br />
| Figure 1.1 (a). Modular RICH detector in GEMC simulation<br />
| Figure 1.1 (b). Single 9 GeV/c pion simulation<br />
|}<br />
<br />
There are two advantages of the lens-based design. Firstly, the ring image is smaller and thinner because of the focusing of lens (see figure 1.2 and 1.3). Secondly, in the case that charged particle travelling parallel but off the longitudinal axis (that is, the optical principal of lens), ring image will be shifted to the central area of the sensor plane (see figure 1.4 and 1.5). Therefore, the lens-based design enhances detector PID performance, while lowers the required sensor plane area per ring.<br />
<br />
{|<br />
|-<br />
| [[image: LensFocusing withLens.png |left|800px]]<br />
|-<br />
| Figure 1.2. Lens focusing gives thinner Cherenkov ring image compare to BELLE-2 ARICH design (below)<br />
|-<br />
| [[image: BELLE2 ARICH Focusing.png |left|800px]]<br />
|-<br />
| Figure 1.3. BELL-2 ARICH design a double layer proximity focusing RICH detector. By using two different refractive indices aerogel block, in order to increase number of photons detected while keeping uncertainty of single photon measurement.<br />
|}<br />
<br />
{|<br />
|-<br />
| [[image:LensShifting withLens.png |left|800px]]<br />
|-<br />
| Figure 1.4. When the charge particle incident along the z-axis of the detector, Cherenkov ring image from the incident particle will be shifted to the central area of the sensor plane, resulting fewer photon loss, and reduce image distortion.<br />
|-<br />
| [[image: BELLE2 ARICH Shifting.png |left|800px]]<br />
|-<br />
| Figure 1.5. Cherenkov ring image from particles that are incident at the third quadrant of the detector.<br />
|}<br />
<br />
{|<br />
|-<br />
| [[image:Num sigma 6inFocalLength.png|left|500px]]<br />
|-<br />
| Figure 1.6. Separation power of modular RICH detector obtained from simulation using 6" focal length Fresnel lens with different pixel sizes<br />
|}<br />
<br />
=Fisrt Prototype and Beam Test=<br />
{|<br />
|-<br />
| [[image: Prototype.png |center|600px|First mRICH prototype]]<br />
|-<br />
| Figure 2.1. First mRICH prototype<br />
|}<br />
<br />
{| class="wikitable"<br />
|-<br />
! Component<br />
! Property<br />
|-<br />
| Detector holder box<br />
| acrylic<br />
|-<br />
| Aerogel<br />
| refractive index=1.03<br />
|-<br />
| Fresnel lens<br />
| spheric acrylic Fresnel lens. focal length=3"<br />
|-<br />
| Mirror set<br />
| <br />
|-<br />
| Sensor<br />
| HAMAMATSU 8500 PMT array. Pixel size=6&times;6mm<br />
|-<br />
|}<br />
<br />
Beam test set up at Fermilab Test Beam Mtest Facility for the first modular RICH prototype detector is shown in the picture below. The detector (black box) sit at the center of a aluminium frame. On both ends of the aluminium frame are hodoscopes. Each hodoscopes consist of four horizon finger-size (1cm x 1cm) scintillators, and four vertical finger-size scintillators. On the far right of the aluminium frame was trigger paddle. The beam was coming from right to left of the picture.<br />
<br />
{|<br />
|-<br />
| [[image:BeamTestSetup2.png|left|500px]]<br />
|-<br />
| Figure 3.1. Beam test set up at Fermilab Test Beam Mtest Facility for the first modular RICH prototype detector.<br />
|}<br />
<br />
Accumulated hit maps from test beam data (right) and simulation (left) are shown in figure (3.2) and (3.3).<br />
{|<br />
|-<br />
| [[image:MRICH run70 n103 accumulatedDisplay.png|400px]] [[image:MRICH simulation run70 hitMap.png|400px]]<br />
|-<br />
| Figure 3.2. Test beam (left) and simulation (right) results from 120 GeV/c proton beam hit perpendicularly at the center of detector xy plane<br />
|-<br />
| [[image:MRICH run88 n103 accumulatedDisplay.png|400px]] [[image:MRICH simulation run88 hitMap.png|400px]]<br />
|-<br />
| Figure 3.3. Test beam (left) and simulation (right) results from 120 GeV/c proton beam hit perpendicularly at the 3rd quadrant of detector xy plane.<br />
|}<br />
<br />
=Second Prototype=<br />
{|<br />
|-<br />
| [[image:Prototype2drawing.png|400px]] [[image:Prototype2pic.png|700px]]<br />
|-<br />
| Figure 3.2. (left) 3D drawing of the second mRICH prototype. (right) construction of the second mRICH prototype.<br />
|}<br />
<br />
{| class="wikitable"<br />
|-<br />
! Component<br />
! Property<br />
|-<br />
| Detector holder box<br />
| Aluminum<br />
|-<br />
| Aerogel<br />
| refractive index=1.03<br />
|-<br />
| Fresnel lens<br />
| spheric acrylic Fresnel lens. focal length=6"<br />
|-<br />
| Mirror set<br />
| <br />
|-<br />
| Sensor<br />
| HAMAMATSU 13700 PMT array. Pixel size=3&times;3mm<br />
|-<br />
|}<br />
<br />
=mRICH Detector System Simulation=<br />
*sPHENIX/ePHENIX<br />
*; [[image: MRICH in ePHENIX.png |center|600px|mRICH in ePHENIX]]<br />
*JLEIC</div>Pinghttp://phynp6.phy-astr.gsu.edu/eRD14/index.php?title=File:MRICH_in_JLEIC.png&diff=251File:MRICH in JLEIC.png2017-07-12T17:38:54Z<p>Ping: Ping uploaded a new version of File:MRICH in JLEIC.png</p>
<hr />
<div></div>Pinghttp://phynp6.phy-astr.gsu.edu/eRD14/index.php?title=File:MRICH_in_JLEIC.png&diff=250File:MRICH in JLEIC.png2017-07-12T17:38:10Z<p>Ping: </p>
<hr />
<div></div>Pinghttp://phynp6.phy-astr.gsu.edu/eRD14/index.php?title=File:MRICH_in_ePHENIX.png&diff=249File:MRICH in ePHENIX.png2017-07-12T17:36:46Z<p>Ping: </p>
<hr />
<div></div>Pinghttp://phynp6.phy-astr.gsu.edu/eRD14/index.php?title=File:Prototype.png&diff=248File:Prototype.png2017-07-12T17:01:32Z<p>Ping: Ping uploaded a new version of File:Prototype.png</p>
<hr />
<div></div>Pinghttp://phynp6.phy-astr.gsu.edu/eRD14/index.php?title=Modular_Ring_Imaging_Cherenkov_Detector_(mRICH)&diff=247Modular Ring Imaging Cherenkov Detector (mRICH)2017-07-12T16:57:38Z<p>Ping: /* Detector Design */</p>
<hr />
<div>The goal of the modular aerogel RICH (mRICH) is to provide hadronic PID capability with momentum coverage from 3 to 10 GeV/c with a compact design in order to overcome the space limitations of the EIC experiments. Although the multi-layer proximity-focusing RICH design, such as ARICH at BELLE2, can achieve three-sigma K/&pi; separation at 4 GeV/c, a larger expansion volume is required for PID in higher momentum range.<br />
<br />
A multi-layer proximity-focusing RICH design increases PID separation power by increasing number of detected photons (Nγ) by adding successive layers of radiator while keeping the uncertainty of Cherenkov angle (&sigma;_&theta;) of single photon measurement. In contrast, the novel lens-based mRICH design improves the separation power by minimizing the uncertainty &sigma;_&theta; as a result of lens focusing, as shown in Figure 2.3.1 (right), which also requires a smaller coverage of the photosensor plane. <br />
<br />
=Detector Design=<br />
Modular RICH detector consist of a block of aerogel as a radiator, a Fresnel lens, a set of four-sided mirror, and a sensor plane. When charged particle passes through the aerogel, it will emit Cherenkov photons in a cone shape. These Cherenkov photons will be focused by the Fresnel lens on the sensor plane, and form a shape ring image.<br />
<br />
{|<br />
|-<br />
| [[image: Detector overview1.png |left|400px|Single 9 GeV/c pion simulation]]<br />
| [[image:Detector overview 9GeVPi center.png|left|420px|Single 9 GeV/c pion simulation]]<br />
|-<br />
| Figure 1.1 (a). Modular RICH detector in GEMC simulation<br />
| Figure 1.1 (b). Single 9 GeV/c pion simulation<br />
|}<br />
<br />
There are two advantages of the lens-based design. Firstly, the ring image is smaller and thinner because of the focusing of lens (see figure 1.2 and 1.3). Secondly, in the case that charged particle travelling parallel but off the longitudinal axis (that is, the optical principal of lens), ring image will be shifted to the central area of the sensor plane (see figure 1.4 and 1.5). Therefore, the lens-based design enhances detector PID performance, while lowers the required sensor plane area per ring.<br />
<br />
{|<br />
|-<br />
| [[image: LensFocusing withLens.png |left|800px]]<br />
|-<br />
| Figure 1.2. Lens focusing gives thinner Cherenkov ring image compare to BELLE-2 ARICH design (below)<br />
|-<br />
| [[image: BELLE2 ARICH Focusing.png |left|800px]]<br />
|-<br />
| Figure 1.3. BELL-2 ARICH design a double layer proximity focusing RICH detector. By using two different refractive indices aerogel block, in order to increase number of photons detected while keeping uncertainty of single photon measurement.<br />
|}<br />
<br />
{|<br />
|-<br />
| [[image:LensShifting withLens.png |left|800px]]<br />
|-<br />
| Figure 1.4. When the charge particle incident along the z-axis of the detector, Cherenkov ring image from the incident particle will be shifted to the central area of the sensor plane, resulting fewer photon loss, and reduce image distortion.<br />
|-<br />
| [[image: BELLE2 ARICH Shifting.png |left|800px]]<br />
|-<br />
| Figure 1.5. Cherenkov ring image from particles that are incident at the third quadrant of the detector.<br />
|}<br />
<br />
{|<br />
|-<br />
| [[image:Num sigma 6inFocalLength.png|left|500px]]<br />
|-<br />
| Figure 1.6. Separation power of modular RICH detector obtained from simulation using 6" focal length Fresnel lens with different pixel sizes<br />
|}<br />
<br />
=Fisrt Prototype and Beam Test=<br />
{|<br />
|-<br />
| [[image: Prototype.png |center|600px|First mRICH prototype]]<br />
|-<br />
| Figure 2.1. First mRICH prototype<br />
|}<br />
<br />
{| class="wikitable"<br />
|-<br />
! Component<br />
! Property<br />
|-<br />
| Detector holder box<br />
| acrylic<br />
|-<br />
| Aerogel<br />
| refractive index=1.03<br />
|-<br />
| Fresnel lens<br />
| spheric acrylic Fresnel lens. focal length=3"<br />
|-<br />
| Mirror set<br />
| <br />
|-<br />
| Sensor<br />
| HAMAMATSU 8500 PMT array. Pixel size=6&times;6mm<br />
|-<br />
|}<br />
<br />
Beam test set up at Fermilab Test Beam Mtest Facility for the first modular RICH prototype detector is shown in the picture below. The detector (black box) sit at the center of a aluminium frame. On both ends of the aluminium frame are hodoscopes. Each hodoscopes consist of four horizon finger-size (1cm x 1cm) scintillators, and four vertical finger-size scintillators. On the far right of the aluminium frame was trigger paddle. The beam was coming from right to left of the picture.<br />
<br />
{|<br />
|-<br />
| [[image:BeamTestSetup2.png|left|500px]]<br />
|-<br />
| Figure 3.1. Beam test set up at Fermilab Test Beam Mtest Facility for the first modular RICH prototype detector.<br />
|}<br />
<br />
Accumulated hit maps from test beam data (right) and simulation (left) are shown in figure (3.2) and (3.3).<br />
{|<br />
|-<br />
| [[image:MRICH run70 n103 accumulatedDisplay.png|400px]] [[image:MRICH simulation run70 hitMap.png|400px]]<br />
|-<br />
| Figure 3.2. Test beam (left) and simulation (right) results from 120 GeV/c proton beam hit perpendicularly at the center of detector xy plane<br />
|-<br />
| [[image:MRICH run88 n103 accumulatedDisplay.png|400px]] [[image:MRICH simulation run88 hitMap.png|400px]]<br />
|-<br />
| Figure 3.3. Test beam (left) and simulation (right) results from 120 GeV/c proton beam hit perpendicularly at the 3rd quadrant of detector xy plane.<br />
|}<br />
<br />
=Second Prototype=<br />
{|<br />
|-<br />
| [[image:Prototype2drawing.png|400px]] [[image:Prototype2pic.png|700px]]<br />
|-<br />
| Figure 3.2. (left) 3D drawing of the second mRICH prototype. (right) construction of the second mRICH prototype.<br />
|}<br />
<br />
{| class="wikitable"<br />
|-<br />
! Component<br />
! Property<br />
|-<br />
| Detector holder box<br />
| Aluminum<br />
|-<br />
| Aerogel<br />
| refractive index=1.03<br />
|-<br />
| Fresnel lens<br />
| spheric acrylic Fresnel lens. focal length=6"<br />
|-<br />
| Mirror set<br />
| <br />
|-<br />
| Sensor<br />
| HAMAMATSU 13700 PMT array. Pixel size=3&times;3mm<br />
|-<br />
|}<br />
<br />
=mRICH Detector System Simulation=<br />
*sPHENIX/ePHENIX<br />
*JLEIC</div>Pinghttp://phynp6.phy-astr.gsu.edu/eRD14/index.php?title=Modular_Ring_Imaging_Cherenkov_Detector_(mRICH)&diff=246Modular Ring Imaging Cherenkov Detector (mRICH)2017-07-12T16:57:15Z<p>Ping: /* Detector Design */</p>
<hr />
<div>The goal of the modular aerogel RICH (mRICH) is to provide hadronic PID capability with momentum coverage from 3 to 10 GeV/c with a compact design in order to overcome the space limitations of the EIC experiments. Although the multi-layer proximity-focusing RICH design, such as ARICH at BELLE2, can achieve three-sigma K/&pi; separation at 4 GeV/c, a larger expansion volume is required for PID in higher momentum range.<br />
<br />
A multi-layer proximity-focusing RICH design increases PID separation power by increasing number of detected photons (Nγ) by adding successive layers of radiator while keeping the uncertainty of Cherenkov angle (&sigma;_&theta;) of single photon measurement. In contrast, the novel lens-based mRICH design improves the separation power by minimizing the uncertainty &sigma;_&theta; as a result of lens focusing, as shown in Figure 2.3.1 (right), which also requires a smaller coverage of the photosensor plane. <br />
<br />
=Detector Design=<br />
Modular RICH detector consist of a block of aerogel as a radiator, a Fresnel lens, a set of four-sided mirror, and a sensor plane. When charged particle passes through the aerogel, it will emit Cherenkov photons in a cone shape. These Cherenkov photons will be focused by the Fresnel lens on the sensor plane, and form a shape ring image.<br />
<br />
{|<br />
|-<br />
| [[image: Detector overview1.png |left|400px|Single 9 GeV/c pion simulation]]<br />
| [[image:Detector overview 9GeVPi center.png|left|420px|Single 9 GeV/c pion simulation]]<br />
|-<br />
| Figure 1.1 (a). Modular RICH detector in GEMC simulation<br />
| Figure 1.1 (b). Single 9 GeV/c pion simulation<br />
|}<br />
<br />
There are two advantages of the lens-based design. Firstly, the ring image is smaller and thinner because of the focusing of lens (see figure 1.2 and 1.3). Secondly, the in the case that charged particle travelling parallel but off the longitudinal axis (that is, the optical principal of lens), ring image will be shifted to the central area of the sensor plane (see figure 1.4 and 1.5). Therefore, the lens-based design enhances detector PID performance, while lowers the required sensor plane area per ring.<br />
<br />
{|<br />
|-<br />
| [[image: LensFocusing withLens.png |left|800px]]<br />
|-<br />
| Figure 1.2. Lens focusing gives thinner Cherenkov ring image compare to BELLE-2 ARICH design (below)<br />
|-<br />
| [[image: BELLE2 ARICH Focusing.png |left|800px]]<br />
|-<br />
| Figure 1.3. BELL-2 ARICH design a double layer proximity focusing RICH detector. By using two different refractive indices aerogel block, in order to increase number of photons detected while keeping uncertainty of single photon measurement.<br />
|}<br />
<br />
{|<br />
|-<br />
| [[image:LensShifting withLens.png |left|800px]]<br />
|-<br />
| Figure 1.4. When the charge particle incident along the z-axis of the detector, Cherenkov ring image from the incident particle will be shifted to the central area of the sensor plane, resulting fewer photon loss, and reduce image distortion.<br />
|-<br />
| [[image: BELLE2 ARICH Shifting.png |left|800px]]<br />
|-<br />
| Figure 1.5. Cherenkov ring image from particles that are incident at the third quadrant of the detector.<br />
|}<br />
<br />
{|<br />
|-<br />
| [[image:Num sigma 6inFocalLength.png|left|500px]]<br />
|-<br />
| Figure 1.6. Separation power of modular RICH detector obtained from simulation using 6" focal length Fresnel lens with different pixel sizes<br />
|}<br />
<br />
=Fisrt Prototype and Beam Test=<br />
{|<br />
|-<br />
| [[image: Prototype.png |center|600px|First mRICH prototype]]<br />
|-<br />
| Figure 2.1. First mRICH prototype<br />
|}<br />
<br />
{| class="wikitable"<br />
|-<br />
! Component<br />
! Property<br />
|-<br />
| Detector holder box<br />
| acrylic<br />
|-<br />
| Aerogel<br />
| refractive index=1.03<br />
|-<br />
| Fresnel lens<br />
| spheric acrylic Fresnel lens. focal length=3"<br />
|-<br />
| Mirror set<br />
| <br />
|-<br />
| Sensor<br />
| HAMAMATSU 8500 PMT array. Pixel size=6&times;6mm<br />
|-<br />
|}<br />
<br />
Beam test set up at Fermilab Test Beam Mtest Facility for the first modular RICH prototype detector is shown in the picture below. The detector (black box) sit at the center of a aluminium frame. On both ends of the aluminium frame are hodoscopes. Each hodoscopes consist of four horizon finger-size (1cm x 1cm) scintillators, and four vertical finger-size scintillators. On the far right of the aluminium frame was trigger paddle. The beam was coming from right to left of the picture.<br />
<br />
{|<br />
|-<br />
| [[image:BeamTestSetup2.png|left|500px]]<br />
|-<br />
| Figure 3.1. Beam test set up at Fermilab Test Beam Mtest Facility for the first modular RICH prototype detector.<br />
|}<br />
<br />
Accumulated hit maps from test beam data (right) and simulation (left) are shown in figure (3.2) and (3.3).<br />
{|<br />
|-<br />
| [[image:MRICH run70 n103 accumulatedDisplay.png|400px]] [[image:MRICH simulation run70 hitMap.png|400px]]<br />
|-<br />
| Figure 3.2. Test beam (left) and simulation (right) results from 120 GeV/c proton beam hit perpendicularly at the center of detector xy plane<br />
|-<br />
| [[image:MRICH run88 n103 accumulatedDisplay.png|400px]] [[image:MRICH simulation run88 hitMap.png|400px]]<br />
|-<br />
| Figure 3.3. Test beam (left) and simulation (right) results from 120 GeV/c proton beam hit perpendicularly at the 3rd quadrant of detector xy plane.<br />
|}<br />
<br />
=Second Prototype=<br />
{|<br />
|-<br />
| [[image:Prototype2drawing.png|400px]] [[image:Prototype2pic.png|700px]]<br />
|-<br />
| Figure 3.2. (left) 3D drawing of the second mRICH prototype. (right) construction of the second mRICH prototype.<br />
|}<br />
<br />
{| class="wikitable"<br />
|-<br />
! Component<br />
! Property<br />
|-<br />
| Detector holder box<br />
| Aluminum<br />
|-<br />
| Aerogel<br />
| refractive index=1.03<br />
|-<br />
| Fresnel lens<br />
| spheric acrylic Fresnel lens. focal length=6"<br />
|-<br />
| Mirror set<br />
| <br />
|-<br />
| Sensor<br />
| HAMAMATSU 13700 PMT array. Pixel size=3&times;3mm<br />
|-<br />
|}<br />
<br />
=mRICH Detector System Simulation=<br />
*sPHENIX/ePHENIX<br />
*JLEIC</div>Pinghttp://phynp6.phy-astr.gsu.edu/eRD14/index.php?title=Modular_Ring_Imaging_Cherenkov_Detector_(mRICH)&diff=245Modular Ring Imaging Cherenkov Detector (mRICH)2017-07-12T16:56:15Z<p>Ping: /* Detector Design */</p>
<hr />
<div>The goal of the modular aerogel RICH (mRICH) is to provide hadronic PID capability with momentum coverage from 3 to 10 GeV/c with a compact design in order to overcome the space limitations of the EIC experiments. Although the multi-layer proximity-focusing RICH design, such as ARICH at BELLE2, can achieve three-sigma K/&pi; separation at 4 GeV/c, a larger expansion volume is required for PID in higher momentum range.<br />
<br />
A multi-layer proximity-focusing RICH design increases PID separation power by increasing number of detected photons (Nγ) by adding successive layers of radiator while keeping the uncertainty of Cherenkov angle (&sigma;_&theta;) of single photon measurement. In contrast, the novel lens-based mRICH design improves the separation power by minimizing the uncertainty &sigma;_&theta; as a result of lens focusing, as shown in Figure 2.3.1 (right), which also requires a smaller coverage of the photosensor plane. <br />
<br />
=Detector Design=<br />
Modular RICH detector consist of a block of aerogel as a radiator, a Fresnel lens, a set of four-sided mirror, and a sensor plane. When charged particle passes through the aerogel, it will emit Cherenkov photons in a cone shape. These Cherenkov photons will be focused by the Fresnel lens on the sensor plane, and form a shape ring image.<br />
<br />
{|<br />
|-<br />
| [[image: Detector overview1.png |left|400px|Single 9 GeV/c pion simulation]]<br />
| [[image:Detector overview 9GeVPi center.png|left|420px|Single 9 GeV/c pion simulation]]<br />
|-<br />
| Figure 1.1 (a). Modular RICH detector in GEMC simulation<br />
| Figure 1.1 (b). Single 9 GeV/c pion simulation<br />
|}<br />
<br />
There are two advantages of the lens-based design. Firstly, the ring image is smaller and thinner because of the focusing of lens. Secondly, the in the case that charged particle travelling parallel but off the longitudinal axis (that is, the optical principal of lens), ring image will be shifted to the central area of the sensor plane. Therefore, the lens-based design enhances detector PID performance, while lowers the required sensor plane area per ring.<br />
<br />
{|<br />
|-<br />
| [[image: LensFocusing withLens.png |left|800px]]<br />
|-<br />
| Figure 1.2. Lens focusing gives thinner Cherenkov ring image compare to BELLE-2 ARICH design (below)<br />
|-<br />
| [[image: BELLE2 ARICH Focusing.png |left|800px]]<br />
|-<br />
| Figure 1.3. BELL-2 ARICH design a double layer proximity focusing RICH detector. By using two different refractive indices aerogel block, in order to increase number of photons detected while keeping uncertainty of single photon measurement.<br />
|}<br />
<br />
{|<br />
|-<br />
| [[image:LensShifting withLens.png |left|800px]]<br />
|-<br />
| Figure 1.4. When the charge particle incident along the z-axis of the detector, Cherenkov ring image from the incident particle will be shifted to the central area of the sensor plane, resulting fewer photon loss, and reduce image distortion.<br />
|-<br />
| [[image: BELLE2 ARICH Shifting.png |left|800px]]<br />
|-<br />
| Figure 1.5. Cherenkov ring image from particles that are incident at the third quadrant of the detector.<br />
|}<br />
<br />
{|<br />
|-<br />
| [[image:Num sigma 6inFocalLength.png|left|500px]]<br />
|-<br />
| Figure 1.6. Separation power of modular RICH detector obtained from simulation using 6" focal length Fresnel lens with different pixel sizes<br />
|}<br />
<br />
=Fisrt Prototype and Beam Test=<br />
{|<br />
|-<br />
| [[image: Prototype.png |center|600px|First mRICH prototype]]<br />
|-<br />
| Figure 2.1. First mRICH prototype<br />
|}<br />
<br />
{| class="wikitable"<br />
|-<br />
! Component<br />
! Property<br />
|-<br />
| Detector holder box<br />
| acrylic<br />
|-<br />
| Aerogel<br />
| refractive index=1.03<br />
|-<br />
| Fresnel lens<br />
| spheric acrylic Fresnel lens. focal length=3"<br />
|-<br />
| Mirror set<br />
| <br />
|-<br />
| Sensor<br />
| HAMAMATSU 8500 PMT array. Pixel size=6&times;6mm<br />
|-<br />
|}<br />
<br />
Beam test set up at Fermilab Test Beam Mtest Facility for the first modular RICH prototype detector is shown in the picture below. The detector (black box) sit at the center of a aluminium frame. On both ends of the aluminium frame are hodoscopes. Each hodoscopes consist of four horizon finger-size (1cm x 1cm) scintillators, and four vertical finger-size scintillators. On the far right of the aluminium frame was trigger paddle. The beam was coming from right to left of the picture.<br />
<br />
{|<br />
|-<br />
| [[image:BeamTestSetup2.png|left|500px]]<br />
|-<br />
| Figure 3.1. Beam test set up at Fermilab Test Beam Mtest Facility for the first modular RICH prototype detector.<br />
|}<br />
<br />
Accumulated hit maps from test beam data (right) and simulation (left) are shown in figure (3.2) and (3.3).<br />
{|<br />
|-<br />
| [[image:MRICH run70 n103 accumulatedDisplay.png|400px]] [[image:MRICH simulation run70 hitMap.png|400px]]<br />
|-<br />
| Figure 3.2. Test beam (left) and simulation (right) results from 120 GeV/c proton beam hit perpendicularly at the center of detector xy plane<br />
|-<br />
| [[image:MRICH run88 n103 accumulatedDisplay.png|400px]] [[image:MRICH simulation run88 hitMap.png|400px]]<br />
|-<br />
| Figure 3.3. Test beam (left) and simulation (right) results from 120 GeV/c proton beam hit perpendicularly at the 3rd quadrant of detector xy plane.<br />
|}<br />
<br />
=Second Prototype=<br />
{|<br />
|-<br />
| [[image:Prototype2drawing.png|400px]] [[image:Prototype2pic.png|700px]]<br />
|-<br />
| Figure 3.2. (left) 3D drawing of the second mRICH prototype. (right) construction of the second mRICH prototype.<br />
|}<br />
<br />
{| class="wikitable"<br />
|-<br />
! Component<br />
! Property<br />
|-<br />
| Detector holder box<br />
| Aluminum<br />
|-<br />
| Aerogel<br />
| refractive index=1.03<br />
|-<br />
| Fresnel lens<br />
| spheric acrylic Fresnel lens. focal length=6"<br />
|-<br />
| Mirror set<br />
| <br />
|-<br />
| Sensor<br />
| HAMAMATSU 13700 PMT array. Pixel size=3&times;3mm<br />
|-<br />
|}<br />
<br />
=mRICH Detector System Simulation=<br />
*sPHENIX/ePHENIX<br />
*JLEIC</div>Pinghttp://phynp6.phy-astr.gsu.edu/eRD14/index.php?title=Modular_Ring_Imaging_Cherenkov_Detector_(mRICH)&diff=244Modular Ring Imaging Cherenkov Detector (mRICH)2017-07-12T16:47:46Z<p>Ping: /* Detector Design */</p>
<hr />
<div>The goal of the modular aerogel RICH (mRICH) is to provide hadronic PID capability with momentum coverage from 3 to 10 GeV/c with a compact design in order to overcome the space limitations of the EIC experiments. Although the multi-layer proximity-focusing RICH design, such as ARICH at BELLE2, can achieve three-sigma K/&pi; separation at 4 GeV/c, a larger expansion volume is required for PID in higher momentum range.<br />
<br />
A multi-layer proximity-focusing RICH design increases PID separation power by increasing number of detected photons (Nγ) by adding successive layers of radiator while keeping the uncertainty of Cherenkov angle (&sigma;_&theta;) of single photon measurement. In contrast, the novel lens-based mRICH design improves the separation power by minimizing the uncertainty &sigma;_&theta; as a result of lens focusing, as shown in Figure 2.3.1 (right), which also requires a smaller coverage of the photosensor plane. <br />
<br />
=Detector Design=<br />
Modular RICH detector consist of a block of aerogel as a radiator, a Fresnel lens, a set of four-sided mirror, and a sensor plane. When charged particle passes through the aerogel, it will emit Cherenkov photons in a cone shape. These Cherenkov photons will be focused by the Fresnel lens on the sensor plane, and form a shape ring image.<br />
<br />
{|<br />
|-<br />
| [[image: Detector overview1.png |left|400px|Single 9 GeV/c pion simulation]]<br />
| [[image:Detector overview 9GeVPi center.png|left|420px|Single 9 GeV/c pion simulation]]<br />
|-<br />
| Figure 1.1 (a). Modular RICH detector in GEMC simulation<br />
| Figure 1.1 (b). Single 9 GeV/c pion simulation<br />
|}<br />
<br />
{|<br />
|-<br />
| [[image: LensFocusing withLens.png |left|800px]]<br />
|-<br />
| Figure 1.2. Lens focusing gives thinner Cherenkov ring image compare to BELLE-2 ARICH design (below)<br />
|-<br />
| [[image: BELLE2 ARICH Focusing.png |left|800px]]<br />
|-<br />
| Figure 1.3. BELL-2 ARICH design a double layer proximity focusing RICH detector. By using two different refractive indices aerogel block, in order to increase number of photons detected while keeping uncertainty of single photon measurement.<br />
|}<br />
<br />
{|<br />
|-<br />
| [[image:LensShifting withLens.png |left|800px]]<br />
|-<br />
| Figure 1.4. When the charge particle incident along the z-axis of the detector, Cherenkov ring image from the incident particle will be shifted to the central area of the sensor plane, resulting fewer photon loss, and reduce image distortion.<br />
|-<br />
| [[image: BELLE2 ARICH Shifting.png |left|800px]]<br />
|-<br />
| Figure 1.5. Cherenkov ring image from particles that are incident at the third quadrant of the detector.<br />
|}<br />
<br />
{|<br />
|-<br />
| [[image:Num sigma 6inFocalLength.png|left|500px]]<br />
|-<br />
| Figure 1.6. Separation power of modular RICH detector obtained from simulation using 6" focal length Fresnel lens with different pixel sizes<br />
|}<br />
<br />
=Fisrt Prototype and Beam Test=<br />
{|<br />
|-<br />
| [[image: Prototype.png |center|600px|First mRICH prototype]]<br />
|-<br />
| Figure 2.1. First mRICH prototype<br />
|}<br />
<br />
{| class="wikitable"<br />
|-<br />
! Component<br />
! Property<br />
|-<br />
| Detector holder box<br />
| acrylic<br />
|-<br />
| Aerogel<br />
| refractive index=1.03<br />
|-<br />
| Fresnel lens<br />
| spheric acrylic Fresnel lens. focal length=3"<br />
|-<br />
| Mirror set<br />
| <br />
|-<br />
| Sensor<br />
| HAMAMATSU 8500 PMT array. Pixel size=6&times;6mm<br />
|-<br />
|}<br />
<br />
Beam test set up at Fermilab Test Beam Mtest Facility for the first modular RICH prototype detector is shown in the picture below. The detector (black box) sit at the center of a aluminium frame. On both ends of the aluminium frame are hodoscopes. Each hodoscopes consist of four horizon finger-size (1cm x 1cm) scintillators, and four vertical finger-size scintillators. On the far right of the aluminium frame was trigger paddle. The beam was coming from right to left of the picture.<br />
<br />
{|<br />
|-<br />
| [[image:BeamTestSetup2.png|left|500px]]<br />
|-<br />
| Figure 3.1. Beam test set up at Fermilab Test Beam Mtest Facility for the first modular RICH prototype detector.<br />
|}<br />
<br />
Accumulated hit maps from test beam data (right) and simulation (left) are shown in figure (3.2) and (3.3).<br />
{|<br />
|-<br />
| [[image:MRICH run70 n103 accumulatedDisplay.png|400px]] [[image:MRICH simulation run70 hitMap.png|400px]]<br />
|-<br />
| Figure 3.2. Test beam (left) and simulation (right) results from 120 GeV/c proton beam hit perpendicularly at the center of detector xy plane<br />
|-<br />
| [[image:MRICH run88 n103 accumulatedDisplay.png|400px]] [[image:MRICH simulation run88 hitMap.png|400px]]<br />
|-<br />
| Figure 3.3. Test beam (left) and simulation (right) results from 120 GeV/c proton beam hit perpendicularly at the 3rd quadrant of detector xy plane.<br />
|}<br />
<br />
=Second Prototype=<br />
{|<br />
|-<br />
| [[image:Prototype2drawing.png|400px]] [[image:Prototype2pic.png|700px]]<br />
|-<br />
| Figure 3.2. (left) 3D drawing of the second mRICH prototype. (right) construction of the second mRICH prototype.<br />
|}<br />
<br />
{| class="wikitable"<br />
|-<br />
! Component<br />
! Property<br />
|-<br />
| Detector holder box<br />
| Aluminum<br />
|-<br />
| Aerogel<br />
| refractive index=1.03<br />
|-<br />
| Fresnel lens<br />
| spheric acrylic Fresnel lens. focal length=6"<br />
|-<br />
| Mirror set<br />
| <br />
|-<br />
| Sensor<br />
| HAMAMATSU 13700 PMT array. Pixel size=3&times;3mm<br />
|-<br />
|}<br />
<br />
=mRICH Detector System Simulation=<br />
*sPHENIX/ePHENIX<br />
*JLEIC</div>Pinghttp://phynp6.phy-astr.gsu.edu/eRD14/index.php?title=Modular_Ring_Imaging_Cherenkov_Detector_(mRICH)&diff=243Modular Ring Imaging Cherenkov Detector (mRICH)2017-07-12T16:19:46Z<p>Ping: /* Fisrt Prototype and Beam Test */</p>
<hr />
<div>The goal of the modular aerogel RICH (mRICH) is to provide hadronic PID capability with momentum coverage from 3 to 10 GeV/c with a compact design in order to overcome the space limitations of the EIC experiments. Although the multi-layer proximity-focusing RICH design, such as ARICH at BELLE2, can achieve three-sigma K/&pi; separation at 4 GeV/c, a larger expansion volume is required for PID in higher momentum range.<br />
<br />
A multi-layer proximity-focusing RICH design increases PID separation power by increasing number of detected photons (Nγ) by adding successive layers of radiator while keeping the uncertainty of Cherenkov angle (&sigma;_&theta;) of single photon measurement. In contrast, the novel lens-based mRICH design improves the separation power by minimizing the uncertainty &sigma;_&theta; as a result of lens focusing, as shown in Figure 2.3.1 (right), which also requires a smaller coverage of the photosensor plane. <br />
<br />
=Detector Design=<br />
<br />
{|<br />
|-<br />
| [[image: Detector overview1.png |left|400px|Single 9 GeV/c pion simulation]]<br />
| [[image:Detector overview 9GeVPi center.png|left|420px|Single 9 GeV/c pion simulation]]<br />
|-<br />
| Figure 1.1 (a). Modular RICH detector in GEMC simulation<br />
| Figure 1.1 (b). Single 9 GeV/c pion simulation<br />
|}<br />
<br />
{|<br />
|-<br />
| [[image: LensFocusing withLens.png |left|800px]]<br />
|-<br />
| Figure 1.2. Lens focusing gives thinner Cherenkov ring image compare to BELLE-2 ARICH design (below)<br />
|-<br />
| [[image: BELLE2 ARICH Focusing.png |left|800px]]<br />
|-<br />
| Figure 1.3. BELL-2 ARICH design a double layer proximity focusing RICH detector. By using two different refractive indices aerogel block, in order to increase number of photons detected while keeping uncertainty of single photon measurement.<br />
|}<br />
<br />
{|<br />
|-<br />
| [[image:LensShifting withLens.png |left|800px]]<br />
|-<br />
| Figure 1.4. When the charge particle incident along the z-axis of the detector, Cherenkov ring image from the incident particle will be shifted to the central area of the sensor plane, resulting fewer photon loss, and reduce image distortion.<br />
|-<br />
| [[image: BELLE2 ARICH Shifting.png |left|800px]]<br />
|-<br />
| Figure 1.5. Cherenkov ring image from particles that are incident at the third quadrant of the detector.<br />
|}<br />
<br />
{|<br />
|-<br />
| [[image:Num sigma 6inFocalLength.png|left|500px]]<br />
|-<br />
| Figure 1.6. Separation power of modular RICH detector obtained from simulation using 6" focal length Fresnel lens with different pixel sizes<br />
|}<br />
<br />
=Fisrt Prototype and Beam Test=<br />
{|<br />
|-<br />
| [[image: Prototype.png |center|600px|First mRICH prototype]]<br />
|-<br />
| Figure 2.1. First mRICH prototype<br />
|}<br />
<br />
{| class="wikitable"<br />
|-<br />
! Component<br />
! Property<br />
|-<br />
| Detector holder box<br />
| acrylic<br />
|-<br />
| Aerogel<br />
| refractive index=1.03<br />
|-<br />
| Fresnel lens<br />
| spheric acrylic Fresnel lens. focal length=3"<br />
|-<br />
| Mirror set<br />
| <br />
|-<br />
| Sensor<br />
| HAMAMATSU 8500 PMT array. Pixel size=6&times;6mm<br />
|-<br />
|}<br />
<br />
Beam test set up at Fermilab Test Beam Mtest Facility for the first modular RICH prototype detector is shown in the picture below. The detector (black box) sit at the center of a aluminium frame. On both ends of the aluminium frame are hodoscopes. Each hodoscopes consist of four horizon finger-size (1cm x 1cm) scintillators, and four vertical finger-size scintillators. On the far right of the aluminium frame was trigger paddle. The beam was coming from right to left of the picture.<br />
<br />
{|<br />
|-<br />
| [[image:BeamTestSetup2.png|left|500px]]<br />
|-<br />
| Figure 3.1. Beam test set up at Fermilab Test Beam Mtest Facility for the first modular RICH prototype detector.<br />
|}<br />
<br />
Accumulated hit maps from test beam data (right) and simulation (left) are shown in figure (3.2) and (3.3).<br />
{|<br />
|-<br />
| [[image:MRICH run70 n103 accumulatedDisplay.png|400px]] [[image:MRICH simulation run70 hitMap.png|400px]]<br />
|-<br />
| Figure 3.2. Test beam (left) and simulation (right) results from 120 GeV/c proton beam hit perpendicularly at the center of detector xy plane<br />
|-<br />
| [[image:MRICH run88 n103 accumulatedDisplay.png|400px]] [[image:MRICH simulation run88 hitMap.png|400px]]<br />
|-<br />
| Figure 3.3. Test beam (left) and simulation (right) results from 120 GeV/c proton beam hit perpendicularly at the 3rd quadrant of detector xy plane.<br />
|}<br />
<br />
=Second Prototype=<br />
{|<br />
|-<br />
| [[image:Prototype2drawing.png|400px]] [[image:Prototype2pic.png|700px]]<br />
|-<br />
| Figure 3.2. (left) 3D drawing of the second mRICH prototype. (right) construction of the second mRICH prototype.<br />
|}<br />
<br />
{| class="wikitable"<br />
|-<br />
! Component<br />
! Property<br />
|-<br />
| Detector holder box<br />
| Aluminum<br />
|-<br />
| Aerogel<br />
| refractive index=1.03<br />
|-<br />
| Fresnel lens<br />
| spheric acrylic Fresnel lens. focal length=6"<br />
|-<br />
| Mirror set<br />
| <br />
|-<br />
| Sensor<br />
| HAMAMATSU 13700 PMT array. Pixel size=3&times;3mm<br />
|-<br />
|}<br />
<br />
=mRICH Detector System Simulation=<br />
*sPHENIX/ePHENIX<br />
*JLEIC</div>Pinghttp://phynp6.phy-astr.gsu.edu/eRD14/index.php?title=Modular_Ring_Imaging_Cherenkov_Detector_(mRICH)&diff=242Modular Ring Imaging Cherenkov Detector (mRICH)2017-07-12T16:12:29Z<p>Ping: </p>
<hr />
<div>The goal of the modular aerogel RICH (mRICH) is to provide hadronic PID capability with momentum coverage from 3 to 10 GeV/c with a compact design in order to overcome the space limitations of the EIC experiments. Although the multi-layer proximity-focusing RICH design, such as ARICH at BELLE2, can achieve three-sigma K/&pi; separation at 4 GeV/c, a larger expansion volume is required for PID in higher momentum range.<br />
<br />
A multi-layer proximity-focusing RICH design increases PID separation power by increasing number of detected photons (Nγ) by adding successive layers of radiator while keeping the uncertainty of Cherenkov angle (&sigma;_&theta;) of single photon measurement. In contrast, the novel lens-based mRICH design improves the separation power by minimizing the uncertainty &sigma;_&theta; as a result of lens focusing, as shown in Figure 2.3.1 (right), which also requires a smaller coverage of the photosensor plane. <br />
<br />
=Detector Design=<br />
<br />
{|<br />
|-<br />
| [[image: Detector overview1.png |left|400px|Single 9 GeV/c pion simulation]]<br />
| [[image:Detector overview 9GeVPi center.png|left|420px|Single 9 GeV/c pion simulation]]<br />
|-<br />
| Figure 1.1 (a). Modular RICH detector in GEMC simulation<br />
| Figure 1.1 (b). Single 9 GeV/c pion simulation<br />
|}<br />
<br />
{|<br />
|-<br />
| [[image: LensFocusing withLens.png |left|800px]]<br />
|-<br />
| Figure 1.2. Lens focusing gives thinner Cherenkov ring image compare to BELLE-2 ARICH design (below)<br />
|-<br />
| [[image: BELLE2 ARICH Focusing.png |left|800px]]<br />
|-<br />
| Figure 1.3. BELL-2 ARICH design a double layer proximity focusing RICH detector. By using two different refractive indices aerogel block, in order to increase number of photons detected while keeping uncertainty of single photon measurement.<br />
|}<br />
<br />
{|<br />
|-<br />
| [[image:LensShifting withLens.png |left|800px]]<br />
|-<br />
| Figure 1.4. When the charge particle incident along the z-axis of the detector, Cherenkov ring image from the incident particle will be shifted to the central area of the sensor plane, resulting fewer photon loss, and reduce image distortion.<br />
|-<br />
| [[image: BELLE2 ARICH Shifting.png |left|800px]]<br />
|-<br />
| Figure 1.5. Cherenkov ring image from particles that are incident at the third quadrant of the detector.<br />
|}<br />
<br />
{|<br />
|-<br />
| [[image:Num sigma 6inFocalLength.png|left|500px]]<br />
|-<br />
| Figure 1.6. Separation power of modular RICH detector obtained from simulation using 6" focal length Fresnel lens with different pixel sizes<br />
|}<br />
<br />
=Fisrt Prototype and Beam Test=<br />
{|<br />
|-<br />
| [[image: Prototype.png |center|600px|First mRICH prototype]]<br />
|-<br />
| Figure 2.1. First mRICH prototype<br />
|}<br />
<br />
{| class="wikitable"<br />
|-<br />
! Component<br />
! Property<br />
|-<br />
| Detector holder box<br />
| acrylic<br />
|-<br />
| Aerogel<br />
| refractive index=1.03<br />
|-<br />
| Fresnel lens<br />
| spheric acrylic Fresnel lens. focal length=3"<br />
|-<br />
| Mirror set<br />
| <br />
|-<br />
| Sensor<br />
| HAMAMATSU 8500 PMT array. Pixel size=6&times;6mm<br />
|-<br />
|}<br />
<br />
Beam test set up at Fermilab Test Beam Mtest Facility for the first modular RICH prototype detector is shown in the picture below. The detector (black box) sit at the center of a aluminium frame. On both ends of the aluminium frame are hodoscopes. Each hodoscopes consist of four horizon finger-size (1mm x 1mm) scintillators, and four vertical finger-size scintillators. On the far right of the aluminium frame was trigger paddle. The beam was coming from right to left of the picture.<br />
<br />
{|<br />
|-<br />
| [[image:BeamTestSetup2.png|left|500px]]<br />
|-<br />
| Figure 3.1. Beam test set up at Fermilab Test Beam Mtest Facility for the first modular RICH prototype detector.<br />
|}<br />
<br />
Accumulated hit maps from test beam data (right) and simulation (left) are shown in figure (3.2) and (3.3).<br />
{|<br />
|-<br />
| [[image:MRICH run70 n103 accumulatedDisplay.png|400px]] [[image:MRICH simulation run70 hitMap.png|400px]]<br />
|-<br />
| Figure 3.2. Test beam (left) and simulation (right) results from 120 GeV/c proton beam hit perpendicularly at the center of detector xy plane<br />
|-<br />
| [[image:MRICH run88 n103 accumulatedDisplay.png|400px]] [[image:MRICH simulation run88 hitMap.png|400px]]<br />
|-<br />
| Figure 3.3. Test beam (left) and simulation (right) results from 120 GeV/c proton beam hit perpendicularly at the 3rd quadrant of detector xy plane.<br />
|}<br />
<br />
=Second Prototype=<br />
{|<br />
|-<br />
| [[image:Prototype2drawing.png|400px]] [[image:Prototype2pic.png|700px]]<br />
|-<br />
| Figure 3.2. (left) 3D drawing of the second mRICH prototype. (right) construction of the second mRICH prototype.<br />
|}<br />
<br />
{| class="wikitable"<br />
|-<br />
! Component<br />
! Property<br />
|-<br />
| Detector holder box<br />
| Aluminum<br />
|-<br />
| Aerogel<br />
| refractive index=1.03<br />
|-<br />
| Fresnel lens<br />
| spheric acrylic Fresnel lens. focal length=6"<br />
|-<br />
| Mirror set<br />
| <br />
|-<br />
| Sensor<br />
| HAMAMATSU 13700 PMT array. Pixel size=3&times;3mm<br />
|-<br />
|}<br />
<br />
=mRICH Detector System Simulation=<br />
*sPHENIX/ePHENIX<br />
*JLEIC</div>Pinghttp://phynp6.phy-astr.gsu.edu/eRD14/index.php?title=Modular_Ring_Imaging_Cherenkov_Detector_(mRICH)&diff=226Modular Ring Imaging Cherenkov Detector (mRICH)2017-06-01T15:32:59Z<p>Ping: /* Second Prototype */</p>
<hr />
<div>The goal of the modular aerogel RICH (mRICH) is to provide hadronic PID capability with momentum coverage from 3 to 10 GeV/c with a compact design in order to overcome the space limitations of the EIC experiments. Although the multi-layer proximity-focusing RICH design, such as ARICH at BELLE2, can achieve three-sigma K/&pi; separation at 4 GeV/c, a larger expansion volume is required for PID in higher momentum range.<br />
<br />
A multi-layer proximity-focusing RICH design increases PID separation power by increasing number of detected photons (Nγ) by adding successive layers of radiator while keeping the uncertainty of Cherenkov angle (&sigma;_&theta;) of single photon measurement. In contrast, the novel lens-based mRICH design improves the separation power by minimizing the uncertainty &sigma;_&theta; as a result of lens focusing, as shown in Figure 2.3.1 (right), which also requires a smaller coverage of the photosensor plane. <br />
<br />
=Detector Design=<br />
<br />
{|<br />
|-<br />
| [[image: Detector overview1.png |left|400px|Single 9 GeV/c pion simulation]]<br />
| [[image:Detector overview 9GeVPi center.png|left|420px|Single 9 GeV/c pion simulation]]<br />
|-<br />
| Figure 1.1 (a). Modular RICH detector in GEMC simulation<br />
| Figure 1.1 (b). Single 9 GeV/c pion simulation<br />
|}<br />
<br />
{|<br />
|-<br />
| [[image: LensFocusing withLens.png |left|800px]]<br />
|-<br />
| Figure 1.2. Lens focusing gives thinner Cherenkov ring image compare to BELLE-2 ARICH design (below)<br />
|-<br />
| [[image: BELLE2 ARICH Focusing.png |left|800px]]<br />
|-<br />
| Figure 1.3. BELL-2 ARICH design a double layer proximity focusing RICH detector. By using two different refractive indices aerogel block, in order to increase number of photons detected while keeping uncertainty of single photon measurement.<br />
|}<br />
<br />
{|<br />
|-<br />
| [[image:LensShifting withLens.png |left|800px]]<br />
|-<br />
| Figure 1.4. When the charge particle incident along the z-axis of the detector, Cherenkov ring image from the incident particle will be shifted to the central area of the sensor plane, resulting fewer photon loss, and reduce image distortion.<br />
|-<br />
| [[image: BELLE2 ARICH Shifting.png |left|800px]]<br />
|-<br />
| Figure 1.5. Cherenkov ring image from particles that are incident at the third quadrant of the detector.<br />
|}<br />
<br />
{|<br />
|-<br />
| [[image:Num sigma 6inFocalLength.png|left|500px]]<br />
|-<br />
| Figure 1.6. Separation power of modular RICH detector obtained from simulation using 6" focal length Fresnel lens with different pixel sizes<br />
|}<br />
<br />
=Fisrt Prototype and Beam Test=<br />
{|<br />
|-<br />
| [[image: Prototype.png |center|600px|First mRICH prototype]]<br />
|-<br />
| Figure 2.1. First mRICH prototype<br />
|}<br />
<br />
{| class="wikitable"<br />
|-<br />
! Component<br />
! Property<br />
|-<br />
| Detector holder box<br />
| acrylic<br />
|-<br />
| Aerogel<br />
| refractive index=1.03<br />
|-<br />
| Fresnel lens<br />
| spheric acrylic Fresnel lens. focal length=3"<br />
|-<br />
| Mirror set<br />
| <br />
|-<br />
| Sensor<br />
| HAMAMATSU 8500 PMT array. Pixel size=6&times;6mm<br />
|-<br />
|}<br />
<br />
Beam test set up at Fermilab Test Beam Mtest Facility for the first modular RICH prototype detector is shown in the picture below. The detector (black box) sit at the center of a aluminium frame. On both ends of the aluminium frame are hodoscopes. Each hodoscopes consist of four horizon finger-size (1mm x 1mm) scintillators, and four vertical finger-size scintillators. On the far right of the aluminium frame was trigger paddle. The beam was coming from right to left of the picture.<br />
<br />
{|<br />
|-<br />
| [[image:BeamTestSetup2.png|left|500px]]<br />
|-<br />
| Figure 3.1. Beam test set up at Fermilab Test Beam Mtest Facility for the first modular RICH prototype detector.<br />
|}<br />
<br />
Accumulated hit maps from test beam data (right) and simulation (left) are shown in figure (3.2) and (3.3).<br />
{|<br />
|-<br />
| [[image:MRICH run70 n103 accumulatedDisplay.png|400px]] [[image:MRICH simulation run70 hitMap.png|400px]]<br />
|-<br />
| Figure 3.2. Test beam (left) and simulation (right) results from 120 GeV/c proton beam hit perpendicularly at the center of detector xy plane<br />
|-<br />
| [[image:MRICH run88 n103 accumulatedDisplay.png|400px]] [[image:MRICH simulation run88 hitMap.png|400px]]<br />
|-<br />
| Figure 3.3. Test beam (left) and simulation (right) results from 120 GeV/c proton beam hit perpendicularly at the 3rd quadrant of detector xy plane.<br />
|}<br />
<br />
=Second Prototype=<br />
{|<br />
|-<br />
| [[image:Prototype2drawing.png|400px]] [[image:Prototype2pic.png|700px]]<br />
|-<br />
| Figure 3.2. (left) 3D drawing of the second mRICH prototype. (right) construction of the second mRICH prototype.<br />
|}<br />
<br />
{| class="wikitable"<br />
|-<br />
! Component<br />
! Property<br />
|-<br />
| Detector holder box<br />
| Aluminum<br />
|-<br />
| Aerogel<br />
| refractive index=1.03<br />
|-<br />
| Fresnel lens<br />
| spheric acrylic Fresnel lens. focal length=6"<br />
|-<br />
| Mirror set<br />
| <br />
|-<br />
| Sensor<br />
| HAMAMATSU 13700 PMT array. Pixel size=3&times;3mm<br />
|-<br />
|}</div>Pinghttp://phynp6.phy-astr.gsu.edu/eRD14/index.php?title=File:Prototype2pic.png&diff=225File:Prototype2pic.png2017-06-01T15:26:18Z<p>Ping: </p>
<hr />
<div></div>Pinghttp://phynp6.phy-astr.gsu.edu/eRD14/index.php?title=File:Prototype2drawing.png&diff=224File:Prototype2drawing.png2017-06-01T15:26:04Z<p>Ping: </p>
<hr />
<div></div>Pinghttp://phynp6.phy-astr.gsu.edu/eRD14/index.php?title=Modular_Ring_Imaging_Cherenkov_Detector_(mRICH)&diff=223Modular Ring Imaging Cherenkov Detector (mRICH)2017-06-01T15:00:43Z<p>Ping: </p>
<hr />
<div>The goal of the modular aerogel RICH (mRICH) is to provide hadronic PID capability with momentum coverage from 3 to 10 GeV/c with a compact design in order to overcome the space limitations of the EIC experiments. Although the multi-layer proximity-focusing RICH design, such as ARICH at BELLE2, can achieve three-sigma K/&pi; separation at 4 GeV/c, a larger expansion volume is required for PID in higher momentum range.<br />
<br />
A multi-layer proximity-focusing RICH design increases PID separation power by increasing number of detected photons (Nγ) by adding successive layers of radiator while keeping the uncertainty of Cherenkov angle (&sigma;_&theta;) of single photon measurement. In contrast, the novel lens-based mRICH design improves the separation power by minimizing the uncertainty &sigma;_&theta; as a result of lens focusing, as shown in Figure 2.3.1 (right), which also requires a smaller coverage of the photosensor plane. <br />
<br />
=Detector Design=<br />
<br />
{|<br />
|-<br />
| [[image: Detector overview1.png |left|400px|Single 9 GeV/c pion simulation]]<br />
| [[image:Detector overview 9GeVPi center.png|left|420px|Single 9 GeV/c pion simulation]]<br />
|-<br />
| Figure 1.1 (a). Modular RICH detector in GEMC simulation<br />
| Figure 1.1 (b). Single 9 GeV/c pion simulation<br />
|}<br />
<br />
{|<br />
|-<br />
| [[image: LensFocusing withLens.png |left|800px]]<br />
|-<br />
| Figure 1.2. Lens focusing gives thinner Cherenkov ring image compare to BELLE-2 ARICH design (below)<br />
|-<br />
| [[image: BELLE2 ARICH Focusing.png |left|800px]]<br />
|-<br />
| Figure 1.3. BELL-2 ARICH design a double layer proximity focusing RICH detector. By using two different refractive indices aerogel block, in order to increase number of photons detected while keeping uncertainty of single photon measurement.<br />
|}<br />
<br />
{|<br />
|-<br />
| [[image:LensShifting withLens.png |left|800px]]<br />
|-<br />
| Figure 1.4. When the charge particle incident along the z-axis of the detector, Cherenkov ring image from the incident particle will be shifted to the central area of the sensor plane, resulting fewer photon loss, and reduce image distortion.<br />
|-<br />
| [[image: BELLE2 ARICH Shifting.png |left|800px]]<br />
|-<br />
| Figure 1.5. Cherenkov ring image from particles that are incident at the third quadrant of the detector.<br />
|}<br />
<br />
{|<br />
|-<br />
| [[image:Num sigma 6inFocalLength.png|left|500px]]<br />
|-<br />
| Figure 1.6. Separation power of modular RICH detector obtained from simulation using 6" focal length Fresnel lens with different pixel sizes<br />
|}<br />
<br />
=Fisrt Prototype and Beam Test=<br />
{|<br />
|-<br />
| [[image: Prototype.png |center|600px|First mRICH prototype]]<br />
|-<br />
| Figure 2.1. First mRICH prototype<br />
|}<br />
<br />
{| class="wikitable"<br />
|-<br />
! Component<br />
! Property<br />
|-<br />
| Detector holder box<br />
| acrylic<br />
|-<br />
| Aerogel<br />
| refractive index=1.03<br />
|-<br />
| Fresnel lens<br />
| spheric acrylic Fresnel lens. focal length=3"<br />
|-<br />
| Mirror set<br />
| <br />
|-<br />
| Sensor<br />
| HAMAMATSU 8500 PMT array. Pixel size=6&times;6mm<br />
|-<br />
|}<br />
<br />
Beam test set up at Fermilab Test Beam Mtest Facility for the first modular RICH prototype detector is shown in the picture below. The detector (black box) sit at the center of a aluminium frame. On both ends of the aluminium frame are hodoscopes. Each hodoscopes consist of four horizon finger-size (1mm x 1mm) scintillators, and four vertical finger-size scintillators. On the far right of the aluminium frame was trigger paddle. The beam was coming from right to left of the picture.<br />
<br />
{|<br />
|-<br />
| [[image:BeamTestSetup2.png|left|500px]]<br />
|-<br />
| Figure 3.1. Beam test set up at Fermilab Test Beam Mtest Facility for the first modular RICH prototype detector.<br />
|}<br />
<br />
Accumulated hit maps from test beam data (right) and simulation (left) are shown in figure (3.2) and (3.3).<br />
{|<br />
|-<br />
| [[image:MRICH run70 n103 accumulatedDisplay.png|400px]] [[image:MRICH simulation run70 hitMap.png|400px]]<br />
|-<br />
| Figure 3.2. Test beam (left) and simulation (right) results from 120 GeV/c proton beam hit perpendicularly at the center of detector xy plane<br />
|-<br />
| [[image:MRICH run88 n103 accumulatedDisplay.png|400px]] [[image:MRICH simulation run88 hitMap.png|400px]]<br />
|-<br />
| Figure 3.3. Test beam (left) and simulation (right) results from 120 GeV/c proton beam hit perpendicularly at the 3rd quadrant of detector xy plane.<br />
|}<br />
<br />
=Second Prototype=<br />
{|<br />
|-<br />
| [[image: Prototype.png |center|600px|First mRICH prototype]]<br />
|-<br />
| Figure 2.1. First mRICH prototype<br />
|}<br />
<br />
{| class="wikitable"<br />
|-<br />
! Component<br />
! Property<br />
|-<br />
| Detector holder box<br />
| Aluminum<br />
|-<br />
| Aerogel<br />
| refractive index=1.03<br />
|-<br />
| Fresnel lens<br />
| spheric acrylic Fresnel lens. focal length=6"<br />
|-<br />
| Mirror set<br />
| <br />
|-<br />
| Sensor<br />
| HAMAMATSU 8500 PMT array. Pixel size=3&times;3mm<br />
|-<br />
|}</div>Pinghttp://phynp6.phy-astr.gsu.edu/eRD14/index.php?title=Modular_Ring_Imaging_Cherenkov_Detector_(mRICH)&diff=222Modular Ring Imaging Cherenkov Detector (mRICH)2017-06-01T14:58:44Z<p>Ping: </p>
<hr />
<div>The goal of the modular aerogel RICH (mRICH) is to provide hadronic PID capability with momentum coverage from 3 to 10 GeV/c with a compact design in order to overcome the space limitations of the EIC experiments. Although the multi-layer proximity-focusing RICH design, such as ARICH at BELLE2, can achieve three-sigma K/&pi; separation at 4 GeV/c, a larger expansion volume is required for PID in higher momentum range.<br />
<br />
A multi-layer proximity-focusing RICH design increases PID separation power by increasing number of detected photons (Nγ) by adding successive layers of radiator while keeping the uncertainty of Cherenkov angle (&sigma;_&theta;) of single photon measurement. In contrast, the novel lens-based mRICH design improves the separation power by minimizing the uncertainty &sigma;_&theta; as a result of lens focusing, as shown in Figure 2.3.1 (right), which also requires a smaller coverage of the photosensor plane. <br />
<br />
=Detector Design=<br />
<br />
{|<br />
|-<br />
| [[image: Detector overview1.png |left|400px|Single 9 GeV/c pion simulation]]<br />
| [[image:Detector overview 9GeVPi center.png|left|420px|Single 9 GeV/c pion simulation]]<br />
|-<br />
| Figure 1.1 (a). Modular RICH detector in GEMC simulation<br />
| Figure 1.1 (b). Single 9 GeV/c pion simulation<br />
|}<br />
<br />
{|<br />
|-<br />
| [[image: LensFocusing withLens.png |left|800px]]<br />
|-<br />
| Figure 1.2. Lens focusing gives thinner Cherenkov ring image compare to BELLE-2 ARICH design (below)<br />
|-<br />
| [[image: BELLE2 ARICH Focusing.png |left|800px]]<br />
|-<br />
| Figure 1.3. BELL-2 ARICH design a double layer proximity focusing RICH detector. By using two different refractive indices aerogel block, in order to increase number of photons detected while keeping uncertainty of single photon measurement.<br />
|}<br />
<br />
{|<br />
|-<br />
| [[image:LensShifting withLens.png |left|800px]]<br />
|-<br />
| Figure 1.4. When the charge particle incident along the z-axis of the detector, Cherenkov ring image from the incident particle will be shifted to the central area of the sensor plane, resulting fewer photon loss, and reduce image distortion.<br />
|-<br />
| [[image: BELLE2 ARICH Shifting.png |left|800px]]<br />
|-<br />
| Figure 1.5. Cherenkov ring image from particles that are incident at the third quadrant of the detector.<br />
|}<br />
<br />
{|<br />
|-<br />
| [[image:Num sigma 6inFocalLength.png|left|500px]]<br />
|-<br />
| Figure 1.6. Separation power of modular RICH detector obtained from simulation using 6" focal length Fresnel lens with different pixel sizes<br />
|}<br />
<br />
=Fisrt Prototype and Beam Test=<br />
{|<br />
|-<br />
| [[image: Prototype.png |center|600px|First mRICH prototype]]<br />
|-<br />
| Figure 2.1. First mRICH prototype<br />
|}<br />
<br />
{| class="wikitable"<br />
|-<br />
! Component<br />
! Property<br />
|-<br />
| Detector holder box<br />
| acrylic<br />
|-<br />
| Aerogel<br />
| refractive index=1.03<br />
|-<br />
| Fresnel lens<br />
| spheric acrylic Fresnel lens. focal length=3"<br />
|-<br />
| Mirror set<br />
| <br />
|-<br />
| Sensor<br />
| HAMAMATSU 8500 PMT array. Pixel size=6&times;6mm<br />
|-<br />
|}<br />
<br />
Beam test set up at Fermilab Test Beam Mtest Facility for the first modular RICH prototype detector is shown in the picture below. The detector (black box) sit at the center of a aluminium frame. On both ends of the aluminium frame are hodoscopes. Each hodoscopes consist of four horizon finger-size (1mm x 1mm) scintillators, and four vertical finger-size scintillators. On the far right of the aluminium frame was trigger paddle. The beam was coming from right to left of the picture.<br />
<br />
{|<br />
|-<br />
| [[image:BeamTestSetup2.png|left|500px]]<br />
|-<br />
| Figure 3.1. Beam test set up at Fermilab Test Beam Mtest Facility for the first modular RICH prototype detector.<br />
|}<br />
<br />
Accumulated hit maps from test beam data (right) and simulation (left) are shown in figure (3.2) and (3.3).<br />
{|<br />
|-<br />
| [[image:MRICH run70 n103 accumulatedDisplay.png|400px]] [[image:MRICH simulation run70 hitMap.png|400px]]<br />
|-<br />
| Figure 3.2. Test beam (left) and simulation (right) results from 120 GeV/c proton beam hit perpendicularly at the center of detector xy plane<br />
|-<br />
| [[image:MRICH run88 n103 accumulatedDisplay.png|400px]] [[image:MRICH simulation run88 hitMap.png|400px]]<br />
|-<br />
| Figure 3.3. Test beam (left) and simulation (right) results from 120 GeV/c proton beam hit perpendicularly at the 3rd quadrant of detector xy plane.<br />
|}</div>Pinghttp://phynp6.phy-astr.gsu.edu/eRD14/index.php?title=Modular_Ring_Imaging_Cherenkov_Detector_(mRICH)&diff=112Modular Ring Imaging Cherenkov Detector (mRICH)2017-01-25T22:10:25Z<p>Ping: /* Fisrt Prototype */</p>
<hr />
<div>The goal of the modular aerogel RICH (mRICH) is to provide hadronic PID capability with momentum coverage from 3 to 10 GeV/c with a compact design in order to overcome the space limitations of the EIC experiments. Although the multi-layer proximity-focusing RICH design, such as ARICH at BELLE2, can achieve three-sigma K/&pi; separation at 4 GeV/c, a larger expansion volume is required for PID in higher momentum range.<br />
<br />
A multi-layer proximity-focusing RICH design increases PID separation power by increasing number of detected photons (Nγ) by adding successive layers of radiator while keeping the uncertainty of Cherenkov angle (&sigma;_&theta;) of single photon measurement. In contrast, the novel lens-based mRICH design improves the separation power by minimizing the uncertainty &sigma;_&theta; as a result of lens focusing, as shown in Figure 2.3.1 (right), which also requires a smaller coverage of the photosensor plane. <br />
<br />
=Detector Design=<br />
<br />
{|<br />
|-<br />
| [[image: Detector overview1.png |left|400px|Single 9 GeV/c pion simulation]]<br />
| [[image:Detector overview 9GeVPi center.png|left|420px|Single 9 GeV/c pion simulation]]<br />
|-<br />
| Figure 1.1 (a). Modular RICH detector in GEMC simulation<br />
| Figure 1.1 (b). Single 9 GeV/c pion simulation<br />
|}<br />
<br />
{|<br />
|-<br />
| [[image: LensFocusing withLens.png |left|800px]]<br />
|-<br />
| Figure 1.2. Lens focusing gives thinner Cherenkov ring image compare to BELLE-2 ARICH design (below)<br />
|-<br />
| [[image: BELLE2 ARICH Focusing.png |left|800px]]<br />
|-<br />
| Figure 1.3. BELL-2 ARICH design a double layer proximity focusing RICH detector. By using two different refractive indices aerogel block, in order to increase number of photons detected while keeping uncertainty of single photon measurement.<br />
|}<br />
<br />
{|<br />
|-<br />
| [[image:LensShifting withLens.png |left|800px]]<br />
|-<br />
| Figure 1.4. When the charge particle incident along the z-axis of the detector, Cherenkov ring image from the incident particle will be shifted to the central area of the sensor plane, resulting fewer photon loss, and reduce image distortion.<br />
|-<br />
| [[image: BELLE2 ARICH Shifting.png |left|800px]]<br />
|-<br />
| Figure 1.5. Cherenkov ring image from particles that are incident at the third quadrant of the detector.<br />
|}<br />
<br />
{|<br />
|-<br />
| [[image:Num sigma 6inFocalLength.png|left|500px]]<br />
|-<br />
| Figure 1.6. Separation power of modular RICH detector obtained from simulation using 6" focal length Fresnel lens with different pixel sizes<br />
|}<br />
<br />
=Fisrt Prototype=<br />
{|<br />
|-<br />
| [[image: Prototype.png |center|600px|First mRICH prototype]]<br />
|-<br />
| Figure 2.1. First mRICH prototype<br />
|}<br />
<br />
{| class="wikitable"<br />
|-<br />
! Component<br />
! Property<br />
|-<br />
| Detector holder box<br />
| acrylic<br />
|-<br />
| Aerogel<br />
| refractive index=1.03<br />
|-<br />
| Fresnel lens<br />
| spheric acrylic Fresnel lens. focal length=3"<br />
|-<br />
| Mirror set<br />
| <br />
|-<br />
| Sensor<br />
| HAMAMATSU 8500 PMT array. Pixel size=6&times;6mm<br />
|-<br />
|}<br />
<br />
=Beam Test=<br />
Beam test set up at Fermilab Test Beam Mtest Facility for the first modular RICH prototype detector is shown in the picture below. The detector (black box) sit at the center of a aluminium frame. On both ends of the aluminium frame are hodoscopes. Each hodoscopes consist of four horizon finger-size (1mm x 1mm) scintillators, and four vertical finger-size scintillators. On the far right of the aluminium frame was trigger paddle. The beam was coming from right to left of the picture.<br />
<br />
{|<br />
|-<br />
| [[image:BeamTestSetup2.png|left|500px]]<br />
|-<br />
| Figure 3.1. Beam test set up at Fermilab Test Beam Mtest Facility for the first modular RICH prototype detector.<br />
|}<br />
<br />
Accumulated hit maps from test beam data (right) and simulation (left) are shown in figure (3.2) and (3.3).<br />
{|<br />
|-<br />
| [[image:MRICH run70 n103 accumulatedDisplay.png|400px]] [[image:MRICH simulation run70 hitMap.png|400px]]<br />
|-<br />
| Figure 3.2. Test beam (left) and simulation (right) results from 120 GeV/c proton beam hit perpendicularly at the center of detector xy plane<br />
|-<br />
| [[image:MRICH run88 n103 accumulatedDisplay.png|400px]] [[image:MRICH simulation run88 hitMap.png|400px]]<br />
|-<br />
| Figure 3.3. Test beam (left) and simulation (right) results from 120 GeV/c proton beam hit perpendicularly at the 3rd quadrant of detector xy plane.<br />
|}</div>Pinghttp://phynp6.phy-astr.gsu.edu/eRD14/index.php?title=Modular_Ring_Imaging_Cherenkov_Detector_(mRICH)&diff=111Modular Ring Imaging Cherenkov Detector (mRICH)2017-01-25T22:08:11Z<p>Ping: /* Fisrt Prototype */</p>
<hr />
<div>The goal of the modular aerogel RICH (mRICH) is to provide hadronic PID capability with momentum coverage from 3 to 10 GeV/c with a compact design in order to overcome the space limitations of the EIC experiments. Although the multi-layer proximity-focusing RICH design, such as ARICH at BELLE2, can achieve three-sigma K/&pi; separation at 4 GeV/c, a larger expansion volume is required for PID in higher momentum range.<br />
<br />
A multi-layer proximity-focusing RICH design increases PID separation power by increasing number of detected photons (Nγ) by adding successive layers of radiator while keeping the uncertainty of Cherenkov angle (&sigma;_&theta;) of single photon measurement. In contrast, the novel lens-based mRICH design improves the separation power by minimizing the uncertainty &sigma;_&theta; as a result of lens focusing, as shown in Figure 2.3.1 (right), which also requires a smaller coverage of the photosensor plane. <br />
<br />
=Detector Design=<br />
<br />
{|<br />
|-<br />
| [[image: Detector overview1.png |left|400px|Single 9 GeV/c pion simulation]]<br />
| [[image:Detector overview 9GeVPi center.png|left|420px|Single 9 GeV/c pion simulation]]<br />
|-<br />
| Figure 1.1 (a). Modular RICH detector in GEMC simulation<br />
| Figure 1.1 (b). Single 9 GeV/c pion simulation<br />
|}<br />
<br />
{|<br />
|-<br />
| [[image: LensFocusing withLens.png |left|800px]]<br />
|-<br />
| Figure 1.2. Lens focusing gives thinner Cherenkov ring image compare to BELLE-2 ARICH design (below)<br />
|-<br />
| [[image: BELLE2 ARICH Focusing.png |left|800px]]<br />
|-<br />
| Figure 1.3. BELL-2 ARICH design a double layer proximity focusing RICH detector. By using two different refractive indices aerogel block, in order to increase number of photons detected while keeping uncertainty of single photon measurement.<br />
|}<br />
<br />
{|<br />
|-<br />
| [[image:LensShifting withLens.png |left|800px]]<br />
|-<br />
| Figure 1.4. When the charge particle incident along the z-axis of the detector, Cherenkov ring image from the incident particle will be shifted to the central area of the sensor plane, resulting fewer photon loss, and reduce image distortion.<br />
|-<br />
| [[image: BELLE2 ARICH Shifting.png |left|800px]]<br />
|-<br />
| Figure 1.5. Cherenkov ring image from particles that are incident at the third quadrant of the detector.<br />
|}<br />
<br />
{|<br />
|-<br />
| [[image:Num sigma 6inFocalLength.png|left|500px]]<br />
|-<br />
| Figure 1.6. Separation power of modular RICH detector obtained from simulation using 6" focal length Fresnel lens with different pixel sizes<br />
|}<br />
<br />
=Fisrt Prototype=<br />
{|<br />
|-<br />
| [[image: Prototype.png |center|600px|First mRICH prototype]]<br />
|-<br />
| Figure 2.1. First mRICH prototype<br />
|}<br />
<br />
{| class="wikitable"<br />
|-<br />
! Component<br />
! Specification<br />
|-<br />
| Detector holder box<br />
| acrylic<br />
|-<br />
| Aerogel<br />
| refractive index=1.03<br />
|-<br />
| Fresnel lens<br />
| spheric acrylic Fresnel lens. focal length=3"<br />
|-<br />
| Mirror set<br />
| <br />
|-<br />
| Sensor<br />
| HAMAMATSU 8500 PMT array. Pixel size=6&times;6mm<br />
|-<br />
|}<br />
<br />
=Beam Test=<br />
Beam test set up at Fermilab Test Beam Mtest Facility for the first modular RICH prototype detector is shown in the picture below. The detector (black box) sit at the center of a aluminium frame. On both ends of the aluminium frame are hodoscopes. Each hodoscopes consist of four horizon finger-size (1mm x 1mm) scintillators, and four vertical finger-size scintillators. On the far right of the aluminium frame was trigger paddle. The beam was coming from right to left of the picture.<br />
<br />
{|<br />
|-<br />
| [[image:BeamTestSetup2.png|left|500px]]<br />
|-<br />
| Figure 3.1. Beam test set up at Fermilab Test Beam Mtest Facility for the first modular RICH prototype detector.<br />
|}<br />
<br />
Accumulated hit maps from test beam data (right) and simulation (left) are shown in figure (3.2) and (3.3).<br />
{|<br />
|-<br />
| [[image:MRICH run70 n103 accumulatedDisplay.png|400px]] [[image:MRICH simulation run70 hitMap.png|400px]]<br />
|-<br />
| Figure 3.2. Test beam (left) and simulation (right) results from 120 GeV/c proton beam hit perpendicularly at the center of detector xy plane<br />
|-<br />
| [[image:MRICH run88 n103 accumulatedDisplay.png|400px]] [[image:MRICH simulation run88 hitMap.png|400px]]<br />
|-<br />
| Figure 3.3. Test beam (left) and simulation (right) results from 120 GeV/c proton beam hit perpendicularly at the 3rd quadrant of detector xy plane.<br />
|}</div>Pinghttp://phynp6.phy-astr.gsu.edu/eRD14/index.php?title=Modular_Ring_Imaging_Cherenkov_Detector_(mRICH)&diff=110Modular Ring Imaging Cherenkov Detector (mRICH)2017-01-25T22:07:19Z<p>Ping: </p>
<hr />
<div>The goal of the modular aerogel RICH (mRICH) is to provide hadronic PID capability with momentum coverage from 3 to 10 GeV/c with a compact design in order to overcome the space limitations of the EIC experiments. Although the multi-layer proximity-focusing RICH design, such as ARICH at BELLE2, can achieve three-sigma K/&pi; separation at 4 GeV/c, a larger expansion volume is required for PID in higher momentum range.<br />
<br />
A multi-layer proximity-focusing RICH design increases PID separation power by increasing number of detected photons (Nγ) by adding successive layers of radiator while keeping the uncertainty of Cherenkov angle (&sigma;_&theta;) of single photon measurement. In contrast, the novel lens-based mRICH design improves the separation power by minimizing the uncertainty &sigma;_&theta; as a result of lens focusing, as shown in Figure 2.3.1 (right), which also requires a smaller coverage of the photosensor plane. <br />
<br />
=Detector Design=<br />
<br />
{|<br />
|-<br />
| [[image: Detector overview1.png |left|400px|Single 9 GeV/c pion simulation]]<br />
| [[image:Detector overview 9GeVPi center.png|left|420px|Single 9 GeV/c pion simulation]]<br />
|-<br />
| Figure 1.1 (a). Modular RICH detector in GEMC simulation<br />
| Figure 1.1 (b). Single 9 GeV/c pion simulation<br />
|}<br />
<br />
{|<br />
|-<br />
| [[image: LensFocusing withLens.png |left|800px]]<br />
|-<br />
| Figure 1.2. Lens focusing gives thinner Cherenkov ring image compare to BELLE-2 ARICH design (below)<br />
|-<br />
| [[image: BELLE2 ARICH Focusing.png |left|800px]]<br />
|-<br />
| Figure 1.3. BELL-2 ARICH design a double layer proximity focusing RICH detector. By using two different refractive indices aerogel block, in order to increase number of photons detected while keeping uncertainty of single photon measurement.<br />
|}<br />
<br />
{|<br />
|-<br />
| [[image:LensShifting withLens.png |left|800px]]<br />
|-<br />
| Figure 1.4. When the charge particle incident along the z-axis of the detector, Cherenkov ring image from the incident particle will be shifted to the central area of the sensor plane, resulting fewer photon loss, and reduce image distortion.<br />
|-<br />
| [[image: BELLE2 ARICH Shifting.png |left|800px]]<br />
|-<br />
| Figure 1.5. Cherenkov ring image from particles that are incident at the third quadrant of the detector.<br />
|}<br />
<br />
{|<br />
|-<br />
| [[image:Num sigma 6inFocalLength.png|left|500px]]<br />
|-<br />
| Figure 1.6. Separation power of modular RICH detector obtained from simulation using 6" focal length Fresnel lens with different pixel sizes<br />
|}<br />
<br />
=Fisrt Prototype=<br />
{|<br />
|-<br />
| [[image: Prototype.png |center|600px|First mRICH prototype]]<br />
|-<br />
| Figure 2.1. First mRICH prototype<br />
|}<br />
<br />
{| class="wikitable"<br />
|-<br />
! Component<br />
! Function<br />
! Specification<br />
|-<br />
| Detector holder box<br />
| provide light tight enviroment<br />
| acrylic<br />
|-<br />
| Aerogel<br />
| radiator<br />
| refractive index=1.03<br />
|-<br />
| Fresnel lens<br />
| focus Cherenkov photons<br />
| spheric acrylic Fresnel lens. focal length=3"<br />
|-<br />
| Mirror set<br />
| <br />
| <br />
|-<br />
| Sensor<br />
| <br />
| HAMAMATSU 8500 PMT array. Pixel size=6&times;6mm<br />
|-<br />
|}<br />
<br />
=Beam Test=<br />
Beam test set up at Fermilab Test Beam Mtest Facility for the first modular RICH prototype detector is shown in the picture below. The detector (black box) sit at the center of a aluminium frame. On both ends of the aluminium frame are hodoscopes. Each hodoscopes consist of four horizon finger-size (1mm x 1mm) scintillators, and four vertical finger-size scintillators. On the far right of the aluminium frame was trigger paddle. The beam was coming from right to left of the picture.<br />
<br />
{|<br />
|-<br />
| [[image:BeamTestSetup2.png|left|500px]]<br />
|-<br />
| Figure 3.1. Beam test set up at Fermilab Test Beam Mtest Facility for the first modular RICH prototype detector.<br />
|}<br />
<br />
Accumulated hit maps from test beam data (right) and simulation (left) are shown in figure (3.2) and (3.3).<br />
{|<br />
|-<br />
| [[image:MRICH run70 n103 accumulatedDisplay.png|400px]] [[image:MRICH simulation run70 hitMap.png|400px]]<br />
|-<br />
| Figure 3.2. Test beam (left) and simulation (right) results from 120 GeV/c proton beam hit perpendicularly at the center of detector xy plane<br />
|-<br />
| [[image:MRICH run88 n103 accumulatedDisplay.png|400px]] [[image:MRICH simulation run88 hitMap.png|400px]]<br />
|-<br />
| Figure 3.3. Test beam (left) and simulation (right) results from 120 GeV/c proton beam hit perpendicularly at the 3rd quadrant of detector xy plane.<br />
|}</div>Pinghttp://phynp6.phy-astr.gsu.edu/eRD14/index.php?title=Modular_Ring_Imaging_Cherenkov_Detector_(mRICH)&diff=109Modular Ring Imaging Cherenkov Detector (mRICH)2017-01-25T22:01:36Z<p>Ping: </p>
<hr />
<div>The novel modular aerogel RICH detector is designed for hadron identification covering a momentum range of 3-10 GeV/c. Silica aerogel has been used for decades in threshold Cherenkov counters for high energy physics experiment and has recently been used as radiator material for RICH detectors for the HERMES, LHCb, AMS, Belle experiments, and for the CLAS12 experiment. This R&D has been benefiting from having in house expertise acquired from CLAS12 RICH.<br />
<br />
The optical properties of aerogel are crucial parameters for the performance of mRICH. For instance, any angular dispersion of the emitted photons affects the precision of the Cherenkov angle measurements. In addition, a high transparency (transmittance) and a proper refractive index are required in order to collect a sufficient number of photons for a reliable ring reconstruction.<br />
<br />
The main components of the modular design include: (a) the aerogel block at the front (characteristic dimension: 10cm&times;10cm&time;3cm and n = 1.01 - 1.05), (b) focusing Fresnel lens (for projecting Cherenkov ring image toward the central region of the photon sensor plane), (c) high quality mirror set on the side walls, and (d) the photon sensor plane.<br />
<br />
The focus of this particular R&D is to systematically study the mRICH performance through simulation with realistic material properties of the aerogel block, Fresnel lens and mirror configuration (i.e. tilting angle) and to verify the simulation results through prototyping and beam test. The performance of the mRICH in the EIC detector will also been studied.<br />
<br />
=Detector Design=<br />
<br />
{|<br />
|-<br />
| [[image: Detector overview1.png |left|400px|Single 9 GeV/c pion simulation]]<br />
| [[image:Detector overview 9GeVPi center.png|left|420px|Single 9 GeV/c pion simulation]]<br />
|-<br />
| Figure 1.1 (a). Modular RICH detector in GEMC simulation<br />
| Figure 1.1 (b). Single 9 GeV/c pion simulation<br />
|}<br />
<br />
{|<br />
|-<br />
| [[image: LensFocusing withLens.png |left|800px]]<br />
|-<br />
| Figure 1.2. Lens focusing gives thinner Cherenkov ring image compare to BELLE-2 ARICH design (below)<br />
|-<br />
| [[image: BELLE2 ARICH Focusing.png |left|800px]]<br />
|-<br />
| Figure 1.3. BELL-2 ARICH design a double layer proximity focusing RICH detector. By using two different refractive indices aerogel block, in order to increase number of photons detected while keeping uncertainty of single photon measurement.<br />
|}<br />
<br />
{|<br />
|-<br />
| [[image:LensShifting withLens.png |left|800px]]<br />
|-<br />
| Figure 1.4. When the charge particle incident along the z-axis of the detector, Cherenkov ring image from the incident particle will be shifted to the central area of the sensor plane, resulting fewer photon loss, and reduce image distortion.<br />
|-<br />
| [[image: BELLE2 ARICH Shifting.png |left|800px]]<br />
|-<br />
| Figure 1.5. Cherenkov ring image from particles that are incident at the third quadrant of the detector.<br />
|}<br />
<br />
{|<br />
|-<br />
| [[image:Num sigma 6inFocalLength.png|left|500px]]<br />
|-<br />
| Figure 1.6. Separation power of modular RICH detector obtained from simulation using 6" focal length Fresnel lens with different pixel sizes<br />
|}<br />
<br />
=Fisrt Prototype=<br />
{|<br />
|-<br />
| [[image: Prototype.png |center|600px|First mRICH prototype]]<br />
|-<br />
| Figure 2.1. First mRICH prototype<br />
|}<br />
<br />
{| class="wikitable"<br />
|-<br />
! Component<br />
! Function<br />
! Specification<br />
|-<br />
| Detector holder box<br />
| provide light tight enviroment<br />
| acrylic<br />
|-<br />
| Aerogel<br />
| radiator<br />
| refractive index=1.03<br />
|-<br />
| Fresnel lens<br />
| focus Cherenkov photons<br />
| spheric acrylic Fresnel lens. focal length=3"<br />
|-<br />
| Mirror set<br />
| <br />
| <br />
|-<br />
| Sensor<br />
| <br />
| HAMAMATSU 8500 PMT array. Pixel size=6&times;6mm<br />
|-<br />
|}<br />
<br />
=Beam Test=<br />
Beam test set up at Fermilab Test Beam Mtest Facility for the first modular RICH prototype detector is shown in the picture below. The detector (black box) sit at the center of a aluminium frame. On both ends of the aluminium frame are hodoscopes. Each hodoscopes consist of four horizon finger-size (1mm x 1mm) scintillators, and four vertical finger-size scintillators. On the far right of the aluminium frame was trigger paddle. The beam was coming from right to left of the picture.<br />
<br />
{|<br />
|-<br />
| [[image:BeamTestSetup2.png|left|500px]]<br />
|-<br />
| Figure 3.1. Beam test set up at Fermilab Test Beam Mtest Facility for the first modular RICH prototype detector.<br />
|}<br />
<br />
Accumulated hit maps from test beam data (right) and simulation (left) are shown in figure (3.2) and (3.3).<br />
{|<br />
|-<br />
| [[image:MRICH run70 n103 accumulatedDisplay.png|400px]] [[image:MRICH simulation run70 hitMap.png|400px]]<br />
|-<br />
| Figure 3.2. Test beam (left) and simulation (right) results from 120 GeV/c proton beam hit perpendicularly at the center of detector xy plane<br />
|-<br />
| [[image:MRICH run88 n103 accumulatedDisplay.png|400px]] [[image:MRICH simulation run88 hitMap.png|400px]]<br />
|-<br />
| Figure 3.3. Test beam (left) and simulation (right) results from 120 GeV/c proton beam hit perpendicularly at the 3rd quadrant of detector xy plane.<br />
|}</div>Pinghttp://phynp6.phy-astr.gsu.edu/eRD14/index.php?title=Modular_Ring_Imaging_Cherenkov_Detector_(mRICH)&diff=108Modular Ring Imaging Cherenkov Detector (mRICH)2017-01-25T21:59:47Z<p>Ping: /* Fisrt Prototype */</p>
<hr />
<div>The modular aerogel RICH is designed for hadron identification covering a momentum range of 3-10 GeV/c. Silica aerogel has been used for decades in threshold Cherenkov counters for high energy physics experiment and has recently been used as radiator material for RICH detectors for the HERMES, LHCb, AMS, Belle experiments, and for the CLAS12 experiment. This R&D has been benefiting from having in house expertise acquired from CLAS12 RICH.<br />
<br />
The optical properties of aerogel are crucial parameters for the performance of mRICH. For instance, any angular dispersion of the emitted photons affects the precision of the Cherenkov angle measurements. In addition, a high transparency (transmittance) and a proper refractive index are required in order to collect a sufficient number of photons for a reliable ring reconstruction.<br />
<br />
The design features of the mRICH are shown in Figure 2.3.1. The main components of the modular design include: (a) the aerogel block at the front (characteristic dimension: 10cm x 10cm x 3cm and n = 1.01 - 1.05), (b) focusing Fresnel lens (for projecting Cherenkov ring image toward the central region of the photon sensor plane), (c) high quality mirror set on the side walls, and (d) the photon sensor plane.<br />
<br />
The focus of this particular R&D is to systematically study the mRICH performance through simulation with realistic material properties of the aerogel block, Fresnel lens and mirror configuration (i.e. tilting angle) and to verify the simulation results through prototyping and beam test. The performance of the mRICH in the EIC detector will also been studied.<br />
<br />
=Detector Design=<br />
<br />
{|<br />
|-<br />
| [[image: Detector overview1.png |left|400px|Single 9 GeV/c pion simulation]]<br />
| [[image:Detector overview 9GeVPi center.png|left|420px|Single 9 GeV/c pion simulation]]<br />
|-<br />
| Figure 1.1 (a). Modular RICH detector in GEMC simulation<br />
| Figure 1.1 (b). Single 9 GeV/c pion simulation<br />
|}<br />
<br />
{|<br />
|-<br />
| [[image: LensFocusing withLens.png |left|800px]]<br />
|-<br />
| Figure 1.2. Lens focusing gives thinner Cherenkov ring image compare to BELLE-2 ARICH design (below)<br />
|-<br />
| [[image: BELLE2 ARICH Focusing.png |left|800px]]<br />
|-<br />
| Figure 1.3. BELL-2 ARICH design a double layer proximity focusing RICH detector. By using two different refractive indices aerogel block, in order to increase number of photons detected while keeping uncertainty of single photon measurement.<br />
|}<br />
<br />
{|<br />
|-<br />
| [[image:LensShifting withLens.png |left|800px]]<br />
|-<br />
| Figure 1.4. When the charge particle incident along the z-axis of the detector, Cherenkov ring image from the incident particle will be shifted to the central area of the sensor plane, resulting fewer photon loss, and reduce image distortion.<br />
|-<br />
| [[image: BELLE2 ARICH Shifting.png |left|800px]]<br />
|-<br />
| Figure 1.5. Cherenkov ring image from particles that are incident at the third quadrant of the detector.<br />
|}<br />
<br />
{|<br />
|-<br />
| [[image:Num sigma 6inFocalLength.png|left|500px]]<br />
|-<br />
| Figure 1.6. Separation power of modular RICH detector obtained from simulation using 6" focal length Fresnel lens with different pixel sizes<br />
|}<br />
<br />
=Fisrt Prototype=<br />
{|<br />
|-<br />
| [[image: Prototype.png |center|600px|First mRICH prototype]]<br />
|-<br />
| Figure 2.1. First mRICH prototype<br />
|}<br />
<br />
{| class="wikitable"<br />
|-<br />
! Component<br />
! Function<br />
! Specification<br />
|-<br />
| Detector holder box<br />
| provide light tight enviroment<br />
| acrylic<br />
|-<br />
| Aerogel<br />
| radiator<br />
| refractive index=1.03<br />
|-<br />
| Fresnel lens<br />
| focus Cherenkov photons<br />
| spheric acrylic Fresnel lens. focal length=3"<br />
|-<br />
| Mirror set<br />
| <br />
| <br />
|-<br />
| Sensor<br />
| <br />
| HAMAMATSU 8500 PMT array. Pixel size=6&times;6mm<br />
|-<br />
|}<br />
<br />
=Beam Test=<br />
Beam test set up at Fermilab Test Beam Mtest Facility for the first modular RICH prototype detector is shown in the picture below. The detector (black box) sit at the center of a aluminium frame. On both ends of the aluminium frame are hodoscopes. Each hodoscopes consist of four horizon finger-size (1mm x 1mm) scintillators, and four vertical finger-size scintillators. On the far right of the aluminium frame was trigger paddle. The beam was coming from right to left of the picture.<br />
<br />
{|<br />
|-<br />
| [[image:BeamTestSetup2.png|left|500px]]<br />
|-<br />
| Figure 3.1. Beam test set up at Fermilab Test Beam Mtest Facility for the first modular RICH prototype detector.<br />
|}<br />
<br />
Accumulated hit maps from test beam data (right) and simulation (left) are shown in figure (3.2) and (3.3).<br />
{|<br />
|-<br />
| [[image:MRICH run70 n103 accumulatedDisplay.png|400px]] [[image:MRICH simulation run70 hitMap.png|400px]]<br />
|-<br />
| Figure 3.2. Test beam (left) and simulation (right) results from 120 GeV/c proton beam hit perpendicularly at the center of detector xy plane<br />
|-<br />
| [[image:MRICH run88 n103 accumulatedDisplay.png|400px]] [[image:MRICH simulation run88 hitMap.png|400px]]<br />
|-<br />
| Figure 3.3. Test beam (left) and simulation (right) results from 120 GeV/c proton beam hit perpendicularly at the 3rd quadrant of detector xy plane.<br />
|}</div>Pinghttp://phynp6.phy-astr.gsu.edu/eRD14/index.php?title=Modular_Ring_Imaging_Cherenkov_Detector_(mRICH)&diff=107Modular Ring Imaging Cherenkov Detector (mRICH)2017-01-25T21:52:35Z<p>Ping: /* Beam Test */</p>
<hr />
<div>The modular aerogel RICH is designed for hadron identification covering a momentum range of 3-10 GeV/c. Silica aerogel has been used for decades in threshold Cherenkov counters for high energy physics experiment and has recently been used as radiator material for RICH detectors for the HERMES, LHCb, AMS, Belle experiments, and for the CLAS12 experiment. This R&D has been benefiting from having in house expertise acquired from CLAS12 RICH.<br />
<br />
The optical properties of aerogel are crucial parameters for the performance of mRICH. For instance, any angular dispersion of the emitted photons affects the precision of the Cherenkov angle measurements. In addition, a high transparency (transmittance) and a proper refractive index are required in order to collect a sufficient number of photons for a reliable ring reconstruction.<br />
<br />
The design features of the mRICH are shown in Figure 2.3.1. The main components of the modular design include: (a) the aerogel block at the front (characteristic dimension: 10cm x 10cm x 3cm and n = 1.01 - 1.05), (b) focusing Fresnel lens (for projecting Cherenkov ring image toward the central region of the photon sensor plane), (c) high quality mirror set on the side walls, and (d) the photon sensor plane.<br />
<br />
The focus of this particular R&D is to systematically study the mRICH performance through simulation with realistic material properties of the aerogel block, Fresnel lens and mirror configuration (i.e. tilting angle) and to verify the simulation results through prototyping and beam test. The performance of the mRICH in the EIC detector will also been studied.<br />
<br />
=Detector Design=<br />
<br />
{|<br />
|-<br />
| [[image: Detector overview1.png |left|400px|Single 9 GeV/c pion simulation]]<br />
| [[image:Detector overview 9GeVPi center.png|left|420px|Single 9 GeV/c pion simulation]]<br />
|-<br />
| Figure 1.1 (a). Modular RICH detector in GEMC simulation<br />
| Figure 1.1 (b). Single 9 GeV/c pion simulation<br />
|}<br />
<br />
{|<br />
|-<br />
| [[image: LensFocusing withLens.png |left|800px]]<br />
|-<br />
| Figure 1.2. Lens focusing gives thinner Cherenkov ring image compare to BELLE-2 ARICH design (below)<br />
|-<br />
| [[image: BELLE2 ARICH Focusing.png |left|800px]]<br />
|-<br />
| Figure 1.3. BELL-2 ARICH design a double layer proximity focusing RICH detector. By using two different refractive indices aerogel block, in order to increase number of photons detected while keeping uncertainty of single photon measurement.<br />
|}<br />
<br />
{|<br />
|-<br />
| [[image:LensShifting withLens.png |left|800px]]<br />
|-<br />
| Figure 1.4. When the charge particle incident along the z-axis of the detector, Cherenkov ring image from the incident particle will be shifted to the central area of the sensor plane, resulting fewer photon loss, and reduce image distortion.<br />
|-<br />
| [[image: BELLE2 ARICH Shifting.png |left|800px]]<br />
|-<br />
| Figure 1.5. Cherenkov ring image from particles that are incident at the third quadrant of the detector.<br />
|}<br />
<br />
{|<br />
|-<br />
| [[image:Num sigma 6inFocalLength.png|left|500px]]<br />
|-<br />
| Figure 1.6. Separation power of modular RICH detector obtained from simulation using 6" focal length Fresnel lens with different pixel sizes<br />
|}<br />
<br />
=Fisrt Prototype=<br />
{|<br />
|-<br />
| [[image: Prototype.png |center|600px|First mRICH prototype]]<br />
|-<br />
| Figure 2.1. First mRICH prototype<br />
|}<br />
<br />
{| class="wikitable"<br />
|-<br />
! Component<br />
! Function<br />
! Specification<br />
|-<br />
| Detector holder box<br />
| provide light tight enviroment<br />
| acrylic<br />
|-<br />
| Aerogel<br />
| radiator<br />
| refractive index=1.03<br />
|-<br />
| Fresnel lens<br />
| focus Cherenkov photons<br />
| spheric acrylic Fresnel lens. focal length=3"<br />
|-<br />
| Mirror set<br />
| <br />
| <br />
|-<br />
| Sensor<br />
| <br />
| HAMAMATSU 8500 PMT array. Pixel size=6&times6mm<br />
|-<br />
|}<br />
<br />
=Beam Test=<br />
Beam test set up at Fermilab Test Beam Mtest Facility for the first modular RICH prototype detector is shown in the picture below. The detector (black box) sit at the center of a aluminium frame. On both ends of the aluminium frame are hodoscopes. Each hodoscopes consist of four horizon finger-size (1mm x 1mm) scintillators, and four vertical finger-size scintillators. On the far right of the aluminium frame was trigger paddle. The beam was coming from right to left of the picture.<br />
<br />
{|<br />
|-<br />
| [[image:BeamTestSetup2.png|left|500px]]<br />
|-<br />
| Figure 3.1. Beam test set up at Fermilab Test Beam Mtest Facility for the first modular RICH prototype detector.<br />
|}<br />
<br />
Accumulated hit maps from test beam data (right) and simulation (left) are shown in figure (3.2) and (3.3).<br />
{|<br />
|-<br />
| [[image:MRICH run70 n103 accumulatedDisplay.png|400px]] [[image:MRICH simulation run70 hitMap.png|400px]]<br />
|-<br />
| Figure 3.2. Test beam (left) and simulation (right) results from 120 GeV/c proton beam hit perpendicularly at the center of detector xy plane<br />
|-<br />
| [[image:MRICH run88 n103 accumulatedDisplay.png|400px]] [[image:MRICH simulation run88 hitMap.png|400px]]<br />
|-<br />
| Figure 3.3. Test beam (left) and simulation (right) results from 120 GeV/c proton beam hit perpendicularly at the 3rd quadrant of detector xy plane.<br />
|}</div>Pinghttp://phynp6.phy-astr.gsu.edu/eRD14/index.php?title=Modular_Ring_Imaging_Cherenkov_Detector_(mRICH)&diff=106Modular Ring Imaging Cherenkov Detector (mRICH)2017-01-25T21:48:21Z<p>Ping: /* Beam Test */</p>
<hr />
<div>The modular aerogel RICH is designed for hadron identification covering a momentum range of 3-10 GeV/c. Silica aerogel has been used for decades in threshold Cherenkov counters for high energy physics experiment and has recently been used as radiator material for RICH detectors for the HERMES, LHCb, AMS, Belle experiments, and for the CLAS12 experiment. This R&D has been benefiting from having in house expertise acquired from CLAS12 RICH.<br />
<br />
The optical properties of aerogel are crucial parameters for the performance of mRICH. For instance, any angular dispersion of the emitted photons affects the precision of the Cherenkov angle measurements. In addition, a high transparency (transmittance) and a proper refractive index are required in order to collect a sufficient number of photons for a reliable ring reconstruction.<br />
<br />
The design features of the mRICH are shown in Figure 2.3.1. The main components of the modular design include: (a) the aerogel block at the front (characteristic dimension: 10cm x 10cm x 3cm and n = 1.01 - 1.05), (b) focusing Fresnel lens (for projecting Cherenkov ring image toward the central region of the photon sensor plane), (c) high quality mirror set on the side walls, and (d) the photon sensor plane.<br />
<br />
The focus of this particular R&D is to systematically study the mRICH performance through simulation with realistic material properties of the aerogel block, Fresnel lens and mirror configuration (i.e. tilting angle) and to verify the simulation results through prototyping and beam test. The performance of the mRICH in the EIC detector will also been studied.<br />
<br />
=Detector Design=<br />
<br />
{|<br />
|-<br />
| [[image: Detector overview1.png |left|400px|Single 9 GeV/c pion simulation]]<br />
| [[image:Detector overview 9GeVPi center.png|left|420px|Single 9 GeV/c pion simulation]]<br />
|-<br />
| Figure 1.1 (a). Modular RICH detector in GEMC simulation<br />
| Figure 1.1 (b). Single 9 GeV/c pion simulation<br />
|}<br />
<br />
{|<br />
|-<br />
| [[image: LensFocusing withLens.png |left|800px]]<br />
|-<br />
| Figure 1.2. Lens focusing gives thinner Cherenkov ring image compare to BELLE-2 ARICH design (below)<br />
|-<br />
| [[image: BELLE2 ARICH Focusing.png |left|800px]]<br />
|-<br />
| Figure 1.3. BELL-2 ARICH design a double layer proximity focusing RICH detector. By using two different refractive indices aerogel block, in order to increase number of photons detected while keeping uncertainty of single photon measurement.<br />
|}<br />
<br />
{|<br />
|-<br />
| [[image:LensShifting withLens.png |left|800px]]<br />
|-<br />
| Figure 1.4. When the charge particle incident along the z-axis of the detector, Cherenkov ring image from the incident particle will be shifted to the central area of the sensor plane, resulting fewer photon loss, and reduce image distortion.<br />
|-<br />
| [[image: BELLE2 ARICH Shifting.png |left|800px]]<br />
|-<br />
| Figure 1.5. Cherenkov ring image from particles that are incident at the third quadrant of the detector.<br />
|}<br />
<br />
{|<br />
|-<br />
| [[image:Num sigma 6inFocalLength.png|left|500px]]<br />
|-<br />
| Figure 1.6. Separation power of modular RICH detector obtained from simulation using 6" focal length Fresnel lens with different pixel sizes<br />
|}<br />
<br />
=Fisrt Prototype=<br />
{|<br />
|-<br />
| [[image: Prototype.png |center|600px|First mRICH prototype]]<br />
|-<br />
| Figure 2.1. First mRICH prototype<br />
|}<br />
<br />
{| class="wikitable"<br />
|-<br />
! Component<br />
! Function<br />
! Specification<br />
|-<br />
| Detector holder box<br />
| provide light tight enviroment<br />
| acrylic<br />
|-<br />
| Aerogel<br />
| radiator<br />
| refractive index=1.03<br />
|-<br />
| Fresnel lens<br />
| focus Cherenkov photons<br />
| spheric acrylic Fresnel lens. focal length=3"<br />
|-<br />
| Mirror set<br />
| <br />
| <br />
|-<br />
| Sensor<br />
| <br />
| HAMAMATSU 8500 PMT array. Pixel size=6&times6mm<br />
|-<br />
|}<br />
<br />
=Beam Test=<br />
Beam test set up at Fermilab Test Beam Mtest Facility for the first modular RICH prototype detector is shown in the picture below. The detector (black box) sit at the center of a aluminium frame. On both ends of the aluminium frame are hodoscopes. Each hodoscopes consist of four horizon finger-size (1mm x 1mm) scintillators, and four vertical finger-size scintillators. On the far right of the aluminium frame was trigger paddle. The beam was coming from right to left of the picture.<br />
<br />
{|<br />
|-<br />
| [[image:BeamTestSetup2.png|left|500px]]<br />
|-<br />
| Figure 3.1. Beam test set up at Fermilab Test Beam Mtest Facility for the first modular RICH prototype detector.<br />
|}<br />
<br />
Accumulated hit maps from test beam data (right) and simulation (left) are shown in figure (3.2) and (3.3).<br />
{|<br />
|-<br />
| [[image:MRICH run70 n103 accumulatedDisplay.png|left|400px]]<br />
| [[image:MRICH simulation run70 hitMap.png|left|400px]]<br />
|-<br />
| Figure 3.2 (a). Test beam result from 120 GeV/c proton beam hit perpendicularly at the center of detector xy plane.<br />
| Figure 3.2 (b). Simulation result from 120 GeV/c proton beam hit perpendicularly at the center of detector xy plane.<br />
|-<br />
| [[image:MRICH run88 n103 accumulatedDisplay.png|left|400px]]<br />
| [[image:MRICH simulation run88 hitMap.png|left|400px]]<br />
|-<br />
| Figure 3.3 (a). Test beam result from 120 GeV/c proton beam hit perpendicularly at the 3rd quadrant of detector xy plane.<br />
| Figure 3.3 (b). Simulation result from 120 GeV/c proton beam hit perpendicularly at the 3rd quadrant of detector xy plane.<br />
|-<br />
|}</div>Pinghttp://phynp6.phy-astr.gsu.edu/eRD14/index.php?title=Modular_Ring_Imaging_Cherenkov_Detector_(mRICH)&diff=105Modular Ring Imaging Cherenkov Detector (mRICH)2017-01-25T21:45:01Z<p>Ping: /* Beam Test */</p>
<hr />
<div>The modular aerogel RICH is designed for hadron identification covering a momentum range of 3-10 GeV/c. Silica aerogel has been used for decades in threshold Cherenkov counters for high energy physics experiment and has recently been used as radiator material for RICH detectors for the HERMES, LHCb, AMS, Belle experiments, and for the CLAS12 experiment. This R&D has been benefiting from having in house expertise acquired from CLAS12 RICH.<br />
<br />
The optical properties of aerogel are crucial parameters for the performance of mRICH. For instance, any angular dispersion of the emitted photons affects the precision of the Cherenkov angle measurements. In addition, a high transparency (transmittance) and a proper refractive index are required in order to collect a sufficient number of photons for a reliable ring reconstruction.<br />
<br />
The design features of the mRICH are shown in Figure 2.3.1. The main components of the modular design include: (a) the aerogel block at the front (characteristic dimension: 10cm x 10cm x 3cm and n = 1.01 - 1.05), (b) focusing Fresnel lens (for projecting Cherenkov ring image toward the central region of the photon sensor plane), (c) high quality mirror set on the side walls, and (d) the photon sensor plane.<br />
<br />
The focus of this particular R&D is to systematically study the mRICH performance through simulation with realistic material properties of the aerogel block, Fresnel lens and mirror configuration (i.e. tilting angle) and to verify the simulation results through prototyping and beam test. The performance of the mRICH in the EIC detector will also been studied.<br />
<br />
=Detector Design=<br />
<br />
{|<br />
|-<br />
| [[image: Detector overview1.png |left|400px|Single 9 GeV/c pion simulation]]<br />
| [[image:Detector overview 9GeVPi center.png|left|420px|Single 9 GeV/c pion simulation]]<br />
|-<br />
| Figure 1.1 (a). Modular RICH detector in GEMC simulation<br />
| Figure 1.1 (b). Single 9 GeV/c pion simulation<br />
|}<br />
<br />
{|<br />
|-<br />
| [[image: LensFocusing withLens.png |left|800px]]<br />
|-<br />
| Figure 1.2. Lens focusing gives thinner Cherenkov ring image compare to BELLE-2 ARICH design (below)<br />
|-<br />
| [[image: BELLE2 ARICH Focusing.png |left|800px]]<br />
|-<br />
| Figure 1.3. BELL-2 ARICH design a double layer proximity focusing RICH detector. By using two different refractive indices aerogel block, in order to increase number of photons detected while keeping uncertainty of single photon measurement.<br />
|}<br />
<br />
{|<br />
|-<br />
| [[image:LensShifting withLens.png |left|800px]]<br />
|-<br />
| Figure 1.4. When the charge particle incident along the z-axis of the detector, Cherenkov ring image from the incident particle will be shifted to the central area of the sensor plane, resulting fewer photon loss, and reduce image distortion.<br />
|-<br />
| [[image: BELLE2 ARICH Shifting.png |left|800px]]<br />
|-<br />
| Figure 1.5. Cherenkov ring image from particles that are incident at the third quadrant of the detector.<br />
|}<br />
<br />
{|<br />
|-<br />
| [[image:Num sigma 6inFocalLength.png|left|500px]]<br />
|-<br />
| Figure 1.6. Separation power of modular RICH detector obtained from simulation using 6" focal length Fresnel lens with different pixel sizes<br />
|}<br />
<br />
=Fisrt Prototype=<br />
{|<br />
|-<br />
| [[image: Prototype.png |center|600px|First mRICH prototype]]<br />
|-<br />
| Figure 2.1. First mRICH prototype<br />
|}<br />
<br />
{| class="wikitable"<br />
|-<br />
! Component<br />
! Function<br />
! Specification<br />
|-<br />
| Detector holder box<br />
| provide light tight enviroment<br />
| acrylic<br />
|-<br />
| Aerogel<br />
| radiator<br />
| refractive index=1.03<br />
|-<br />
| Fresnel lens<br />
| focus Cherenkov photons<br />
| spheric acrylic Fresnel lens. focal length=3"<br />
|-<br />
| Mirror set<br />
| <br />
| <br />
|-<br />
| Sensor<br />
| <br />
| HAMAMATSU 8500 PMT array. Pixel size=6&times6mm<br />
|-<br />
|}<br />
<br />
=Beam Test=<br />
Beam test set up at Fermilab Test Beam Mtest Facility for the first modular RICH prototype detector is shown in the picture below. The detector (black box) sit at the center of a aluminium frame. On both ends of the aluminium frame are hodoscopes. Each hodoscopes consist of four horizon finger-size (1mm x 1mm) scintillators, and four vertical finger-size scintillators. On the far right of the aluminium frame was trigger paddle. The beam was coming from right to left of the picture.<br />
<br />
{|<br />
|-<br />
| [[image:BeamTestSetup2.png|left|500px]]<br />
|-<br />
| Figure 3.1. Beam test set up at Fermilab Test Beam Mtest Facility for the first modular RICH prototype detector.<br />
|}<br />
<br />
Accumulated hit maps from test beam data (right) and simulation (left) are shown in figure (3.2) and (3.3). T<br />
{|<br />
|-<br />
| [[image:MRICH run70 n103 accumulatedDisplay.png|left|400px]]<br />
| [[image:MRICH simulation run70 hitMap.png|left|400px]]<br />
|-<br />
| Figure 3.2 (a). Test beam result from 120 GeV/c proton beam hit incident perpendicularly to the detector xy plane.<br />
| Figure 3.2 (b). Simulation result from 120 GeV/c proton beam hit incident perpendicularly to the detector xy plane.<br />
|-<br />
| [[image:MRICH run88 n103 accumulatedDisplay.png|left|400px]]<br />
| [[image:MRICH simulation run88 hitMap.png|left|400px]]<br />
|-<br />
| Figure 3.3 (a).<br />
| Figure 3.3 (b).<br />
|}</div>Pinghttp://phynp6.phy-astr.gsu.edu/eRD14/index.php?title=Modular_Ring_Imaging_Cherenkov_Detector_(mRICH)&diff=104Modular Ring Imaging Cherenkov Detector (mRICH)2017-01-25T21:35:48Z<p>Ping: /* Beam Test */</p>
<hr />
<div>The modular aerogel RICH is designed for hadron identification covering a momentum range of 3-10 GeV/c. Silica aerogel has been used for decades in threshold Cherenkov counters for high energy physics experiment and has recently been used as radiator material for RICH detectors for the HERMES, LHCb, AMS, Belle experiments, and for the CLAS12 experiment. This R&D has been benefiting from having in house expertise acquired from CLAS12 RICH.<br />
<br />
The optical properties of aerogel are crucial parameters for the performance of mRICH. For instance, any angular dispersion of the emitted photons affects the precision of the Cherenkov angle measurements. In addition, a high transparency (transmittance) and a proper refractive index are required in order to collect a sufficient number of photons for a reliable ring reconstruction.<br />
<br />
The design features of the mRICH are shown in Figure 2.3.1. The main components of the modular design include: (a) the aerogel block at the front (characteristic dimension: 10cm x 10cm x 3cm and n = 1.01 - 1.05), (b) focusing Fresnel lens (for projecting Cherenkov ring image toward the central region of the photon sensor plane), (c) high quality mirror set on the side walls, and (d) the photon sensor plane.<br />
<br />
The focus of this particular R&D is to systematically study the mRICH performance through simulation with realistic material properties of the aerogel block, Fresnel lens and mirror configuration (i.e. tilting angle) and to verify the simulation results through prototyping and beam test. The performance of the mRICH in the EIC detector will also been studied.<br />
<br />
=Detector Design=<br />
<br />
{|<br />
|-<br />
| [[image: Detector overview1.png |left|400px|Single 9 GeV/c pion simulation]]<br />
| [[image:Detector overview 9GeVPi center.png|left|420px|Single 9 GeV/c pion simulation]]<br />
|-<br />
| Figure 1.1 (a). Modular RICH detector in GEMC simulation<br />
| Figure 1.1 (b). Single 9 GeV/c pion simulation<br />
|}<br />
<br />
{|<br />
|-<br />
| [[image: LensFocusing withLens.png |left|800px]]<br />
|-<br />
| Figure 1.2. Lens focusing gives thinner Cherenkov ring image compare to BELLE-2 ARICH design (below)<br />
|-<br />
| [[image: BELLE2 ARICH Focusing.png |left|800px]]<br />
|-<br />
| Figure 1.3. BELL-2 ARICH design a double layer proximity focusing RICH detector. By using two different refractive indices aerogel block, in order to increase number of photons detected while keeping uncertainty of single photon measurement.<br />
|}<br />
<br />
{|<br />
|-<br />
| [[image:LensShifting withLens.png |left|800px]]<br />
|-<br />
| Figure 1.4. When the charge particle incident along the z-axis of the detector, Cherenkov ring image from the incident particle will be shifted to the central area of the sensor plane, resulting fewer photon loss, and reduce image distortion.<br />
|-<br />
| [[image: BELLE2 ARICH Shifting.png |left|800px]]<br />
|-<br />
| Figure 1.5. Cherenkov ring image from particles that are incident at the third quadrant of the detector.<br />
|}<br />
<br />
{|<br />
|-<br />
| [[image:Num sigma 6inFocalLength.png|left|500px]]<br />
|-<br />
| Figure 1.6. Separation power of modular RICH detector obtained from simulation using 6" focal length Fresnel lens with different pixel sizes<br />
|}<br />
<br />
=Fisrt Prototype=<br />
{|<br />
|-<br />
| [[image: Prototype.png |center|600px|First mRICH prototype]]<br />
|-<br />
| Figure 2.1. First mRICH prototype<br />
|}<br />
<br />
{| class="wikitable"<br />
|-<br />
! Component<br />
! Function<br />
! Specification<br />
|-<br />
| Detector holder box<br />
| provide light tight enviroment<br />
| acrylic<br />
|-<br />
| Aerogel<br />
| radiator<br />
| refractive index=1.03<br />
|-<br />
| Fresnel lens<br />
| focus Cherenkov photons<br />
| spheric acrylic Fresnel lens. focal length=3"<br />
|-<br />
| Mirror set<br />
| <br />
| <br />
|-<br />
| Sensor<br />
| <br />
| HAMAMATSU 8500 PMT array. Pixel size=6&times6mm<br />
|-<br />
|}<br />
<br />
=Beam Test=<br />
Beam test set up at Fermilab Test Beam Mtest Facility for the first modular RICH prototype detector is shown in the picture below. The detector (black box) sit at the center of a aluminium frame. On both ends of the aluminium frame are hodoscopes. Each hodoscopes consist of four horizon finger-size (1mm x 1mm) scintillators, and four vertical finger-size scintillators. On the far right of the aluminium frame was trigger paddle. The beam was coming from right to left of the picture.<br />
<br />
{|<br />
|-<br />
| [[image:BeamTestSetup2.png|left|500px]]<br />
|-<br />
| Figure 3.1. Beam test set up at Fermilab Test Beam Mtest Facility for the first modular RICH prototype detector.<br />
|}<br />
<br />
Accumulated hit maps from test beam data (right) and simulation (left) are shown in figure (3.2) and (3.3).<br />
{|<br />
|-<br />
| [[image:MRICH run70 n103 accumulatedDisplay.png|left|400px]]<br />
| [[image:MRICH simulation run70 hitMap.png|left|400px]]<br />
|-<br />
| Figure 3.2 (a). <br />
| Figure 3.2 (b).<br />
|-<br />
| [[image:MRICH run88 n103 accumulatedDisplay.png|left|400px]]<br />
| [[image:MRICH simulation run88 hitMap.png|left|400px]]<br />
|-<br />
| Figure 3.3 (a).<br />
| Figure 3.3 (b).<br />
|}</div>Pinghttp://phynp6.phy-astr.gsu.edu/eRD14/index.php?title=Modular_Ring_Imaging_Cherenkov_Detector_(mRICH)&diff=103Modular Ring Imaging Cherenkov Detector (mRICH)2017-01-25T21:31:32Z<p>Ping: /* Beam Test */</p>
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<div>The modular aerogel RICH is designed for hadron identification covering a momentum range of 3-10 GeV/c. Silica aerogel has been used for decades in threshold Cherenkov counters for high energy physics experiment and has recently been used as radiator material for RICH detectors for the HERMES, LHCb, AMS, Belle experiments, and for the CLAS12 experiment. This R&D has been benefiting from having in house expertise acquired from CLAS12 RICH.<br />
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The optical properties of aerogel are crucial parameters for the performance of mRICH. For instance, any angular dispersion of the emitted photons affects the precision of the Cherenkov angle measurements. In addition, a high transparency (transmittance) and a proper refractive index are required in order to collect a sufficient number of photons for a reliable ring reconstruction.<br />
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The design features of the mRICH are shown in Figure 2.3.1. The main components of the modular design include: (a) the aerogel block at the front (characteristic dimension: 10cm x 10cm x 3cm and n = 1.01 - 1.05), (b) focusing Fresnel lens (for projecting Cherenkov ring image toward the central region of the photon sensor plane), (c) high quality mirror set on the side walls, and (d) the photon sensor plane.<br />
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The focus of this particular R&D is to systematically study the mRICH performance through simulation with realistic material properties of the aerogel block, Fresnel lens and mirror configuration (i.e. tilting angle) and to verify the simulation results through prototyping and beam test. The performance of the mRICH in the EIC detector will also been studied.<br />
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=Detector Design=<br />
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{|<br />
|-<br />
| [[image: Detector overview1.png |left|400px|Single 9 GeV/c pion simulation]]<br />
| [[image:Detector overview 9GeVPi center.png|left|420px|Single 9 GeV/c pion simulation]]<br />
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| Figure 1.1 (a). Modular RICH detector in GEMC simulation<br />
| Figure 1.1 (b). Single 9 GeV/c pion simulation<br />
|}<br />
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{|<br />
|-<br />
| [[image: LensFocusing withLens.png |left|800px]]<br />
|-<br />
| Figure 1.2. Lens focusing gives thinner Cherenkov ring image compare to BELLE-2 ARICH design (below)<br />
|-<br />
| [[image: BELLE2 ARICH Focusing.png |left|800px]]<br />
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| Figure 1.3. BELL-2 ARICH design a double layer proximity focusing RICH detector. By using two different refractive indices aerogel block, in order to increase number of photons detected while keeping uncertainty of single photon measurement.<br />
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{|<br />
|-<br />
| [[image:LensShifting withLens.png |left|800px]]<br />
|-<br />
| Figure 1.4. When the charge particle incident along the z-axis of the detector, Cherenkov ring image from the incident particle will be shifted to the central area of the sensor plane, resulting fewer photon loss, and reduce image distortion.<br />
|-<br />
| [[image: BELLE2 ARICH Shifting.png |left|800px]]<br />
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| Figure 1.5. Cherenkov ring image from particles that are incident at the third quadrant of the detector.<br />
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{|<br />
|-<br />
| [[image:Num sigma 6inFocalLength.png|left|500px]]<br />
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| Figure 1.6. Separation power of modular RICH detector obtained from simulation using 6" focal length Fresnel lens with different pixel sizes<br />
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=Fisrt Prototype=<br />
{|<br />
|-<br />
| [[image: Prototype.png |center|600px|First mRICH prototype]]<br />
|-<br />
| Figure 2.1. First mRICH prototype<br />
|}<br />
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{| class="wikitable"<br />
|-<br />
! Component<br />
! Function<br />
! Specification<br />
|-<br />
| Detector holder box<br />
| provide light tight enviroment<br />
| acrylic<br />
|-<br />
| Aerogel<br />
| radiator<br />
| refractive index=1.03<br />
|-<br />
| Fresnel lens<br />
| focus Cherenkov photons<br />
| spheric acrylic Fresnel lens. focal length=3"<br />
|-<br />
| Mirror set<br />
| <br />
| <br />
|-<br />
| Sensor<br />
| <br />
| HAMAMATSU 8500 PMT array. Pixel size=6&times6mm<br />
|-<br />
|}<br />
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=Beam Test=<br />
Beam test set up at Fermilab Test Beam Mtest Facility for the first modular RICH prototype detector is shown in the picture below. The detector (black box) sit at the center of a aluminium frame. On both ends of the aluminium frame are hodoscopes. Each hodoscopes consist of four horizon finger-size (1mm x 1mm) scintillators, and four vertical finger-size scintillators. On the far right of the aluminium frame is trigger paddle. The beam is coming from right to left of the picture.<br />
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{|<br />
|-<br />
| [[image:BeamTestSetup2.png|left|500px]]<br />
|-<br />
| Figure 3.1. Beam test set up at Fermilab Test Beam Mtest Facility for the first modular RICH prototype detector.<br />
|}<br />
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Accumulated hit map.<br />
{|<br />
|-<br />
| [[image:MRICH run70 n103 accumulatedDisplay.png|left|400px]]<br />
| [[image:MRICH simulation run70 hitMap.png|left|400px]]<br />
|-<br />
| Figure 3.2 (a). <br />
| Figure 3.2 (b).<br />
|-<br />
| [[image:MRICH run88 n103 accumulatedDisplay.png|left|400px]]<br />
| [[image:MRICH simulation run88 hitMap.png|left|400px]]<br />
|-<br />
| Figure 3.3 (a).<br />
| Figure 3.3 (b).<br />
|}</div>Ping