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Commit 0fb63eac authored by Christopher Dilks's avatar Christopher Dilks Committed by Sylvester Joosten
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Resolve "Detailed Dual RICH implementation"

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athena.xml
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...@@ -164,7 +164,7 @@ ...@@ -164,7 +164,7 @@
<!--include ref="compact/dirc.xml"/--> <!--include ref="compact/dirc.xml"/-->
<!--include ref="compact/mrich.xml"/--> <!--include ref="compact/mrich.xml"/-->
<include ref="compact/forward_trd.xml"/> <include ref="compact/forward_trd.xml"/>
<include ref="compact/gaseous_rich.xml"/> <include ref="compact/drich.xml"/>
<documentation level="10"> <documentation level="10">
## Central calorimetry ## Central calorimetry
......
compact/definitions.xml
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...@@ -324,7 +324,7 @@ Examples: ...@@ -324,7 +324,7 @@ Examples:
### PID Detector Region Parameters ### PID Detector Region Parameters
</documentation> </documentation>
<constant name="ForwardRICH_length" value="1.1*m"/> <constant name="ForwardRICH_length" value="180.0*cm"/>
<constant name="ForwardTRD_length" value="10.0*cm"/> <constant name="ForwardTRD_length" value="10.0*cm"/>
<constant name="ForwardTOF_length" value="3.0*cm"/> <constant name="ForwardTOF_length" value="3.0*cm"/>
...@@ -353,7 +353,7 @@ Examples: ...@@ -353,7 +353,7 @@ Examples:
Generic tracking space allocations Generic tracking space allocations
</documentation> </documentation>
<constant name="ForwardTracking_length" value="0.0*cm"/> <constant name="ForwardTracking_length" value="25.0*cm"/>
<documentation> <documentation>
`BackwardTracking_length` and `ForwardTracking_length` compensate for the asymmetry of the setup `BackwardTracking_length` and `ForwardTracking_length` compensate for the asymmetry of the setup
</documentation> </documentation>
......
compact/display.xml
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...@@ -77,6 +77,15 @@ ...@@ -77,6 +77,15 @@
<vis name="ci_GEMVis" r= "0.8" g="0.4" b="0.3" alpha="0.8" showDaughters="true" visible="true"/> <vis name="ci_GEMVis" r= "0.8" g="0.4" b="0.3" alpha="0.8" showDaughters="true" visible="true"/>
<vis name="ci_HCALVis" r= "0.6" g="0" b="0.6" alpha="1.0" showDaughters="true" visible="true"/> <vis name="ci_HCALVis" r= "0.6" g="0" b="0.6" alpha="1.0" showDaughters="true" visible="true"/>
<vis name="DRICH_vessel_vis" alpha="1.0" r="1.0" g="1.0" b="1.0" showDaughters="true" visible="true" />
<vis name="DRICH_gas_vis" alpha="1.0" r="1.0" g="0.0" b="0.0" showDaughters="true" visible="true" />
<vis name="DRICH_aerogel_vis" alpha="1.0" r="0.0" g="1.0" b="1.0" showDaughters="true" visible="true" />
<vis name="DRICH_filter_vis" alpha="1.0" r="1.0" g="1.0" b="0.0" showDaughters="true" visible="true" />
<vis name="DRICH_mirror_vis" alpha="1.0" r="0.5" g="0.5" b="0.5" showDaughters="true" visible="true" />
<vis name="DRICH_sensor_vis" alpha="1.0" r="0.0" g="1.0" b="0.0" showDaughters="true" visible="true" />
</display>
<comment> <comment>
Deprecated colors. Deprecated colors.
vis name="GreenVis" alpha="1.0" r= "0.0" g="1.0" b="0.0" showDaughters="true" visible="true"/ vis name="GreenVis" alpha="1.0" r= "0.0" g="1.0" b="0.0" showDaughters="true" visible="true"/
......
compact/drich.xml 0 → 100644
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<?xml version="1.0" encoding="UTF-8"?>
<lccdd>
<define>
<!-- TODO [low priority]: some of these, viz. radii, could be parameterized
with respect to other variables; for now they are hard coded in case
other detectors' parameters are changing -->
<!-- parameters for re-scaling fun4all design to ATHENA -->
<constant name="DRICH_scale" value="0.963"/> <!-- overall scale factor from fun4all to ATHENA -->
<constant name="DRICH_f4a_length" value="161.0*cm"/> <!-- z-length of fun4all design -->
<!-- vessel (=snout+tank) geometry -->
<constant name="DRICH_zmin" value="BarrelTracking_length/2.0 + ForwardTracking_length "/> <!-- vessel front -->
<constant name="DRICH_Length" value="ForwardRICH_length"/> <!-- overall vessel length (including snout) -->
<constant name="DRICH_rmin0" value="ForwardPID_rmin1"/> <!-- bore radius at dRICh vessel frontplane -->
<constant name="DRICH_rmin1" value="19.0*cm"/> <!-- bore radius at dRICh vessel backplane -->
<constant name="DRICH_wall_thickness" value="0.5*cm"/> <!-- thickness of radial walls -->
<constant name="DRICH_window_thickness" value="0.1*cm"/> <!-- thickness of entrance and exit walls -->
<!-- snout geometry: cone with front radius rmax0 and back radius of rmax1 -->
<constant name="DRICH_SnoutLength" value="50.0*cm"/>
<constant name="DRICH_rmax0" value="110.0*cm"/>
<constant name="DRICH_rmax1" value="125.0*cm"/>
<!-- tank geometry: cylinder, holding the majority of detector components -->
<constant name="DRICH_rmax2" value="200*cm"/> <!-- cylinder radius; 20 cm gap between dRICh and HCalBarrel -->
<!-- additional parameters -->
<constant name="DRICH_aerogel_thickness" value="4.0*cm"/> <!-- aerogel thickness -->
</define>
<detectors>
<detector
id="ForwardRICH_ID"
name="DRICH"
type="athena_DRICH"
readout="DRICHHits"
gas="C2F6_DRICH"
material="Aluminum"
vis_vessel="DRICH_vessel_vis"
vis_gas="DRICH_gas_vis"
>
<!-- envelope dimensions (see above)
- `wall_thickness`: thickness of radial walls
- `window_thickness`: thickness of entrance and exit disks
-->
<dimensions
z0="DRICH_zmin"
length="DRICH_Length"
snout_length="DRICH_SnoutLength"
rmin0="DRICH_rmin0"
rmin1="DRICH_rmin1"
rmax0="DRICH_rmax0"
rmax1="DRICH_rmax1"
rmax2="DRICH_rmax2"
nsectors="6"
wall_thickness="DRICH_wall_thickness"
window_thickness="DRICH_window_thickness"
/>
<!-- radiator defined in a wedge of azimuthal space
- `phiw` is phi width of wedge
- `thickness` defined separately for aerogel and filter
- `frontplane` is the front of the aerogel, w.r.t. front plane of vessel envelope
- `pitch` controls the angle of the radiator (0=vertical)
- filter is applied to backplane of aerogel
-->
<radiator
rmin="DRICH_rmin0 + DRICH_wall_thickness + 2.0*cm"
rmax="DRICH_rmax0 - DRICH_wall_thickness - 2.0*cm"
phiw="56*degree"
frontplane="DRICH_window_thickness + 0.5*DRICH_aerogel_thickness"
pitch="0*degree"
>
<aerogel
material="Aerogel_DRICH"
vis="DRICH_aerogel_vis"
thickness="DRICH_aerogel_thickness"
/>
<filter
material="Acrylic_DRICH"
vis="DRICH_filter_vis"
thickness="0.3*mm"
/>
</radiator>
<!-- spherical mirror is part of a sphere
- `rmin` and `rmax` provide polar angle boundaries
- `phiw` is the azimuthal width
- `radius` is the radius of the sphere
- `centerx` is the transverse position of the center
of the sphere, for the sector on the +x axis
- the back of the mirror will pass through `backplane`
- set `debug` to 1 so draw reference sphere instead, view with y-clipping
-->
<mirror
material="Acrylic_DRICH"
surface="MirrorSurface_DRICH"
vis="DRICH_mirror_vis"
backplane="DRICH_Length-2.0*cm"
thickness="0.2*cm"
radius="290*DRICH_scale*cm"
centerx="145*DRICH_scale*cm"
rmin="DRICH_rmin1 + DRICH_wall_thickness + 0.0*cm"
rmax="DRICH_rmax2 - DRICH_wall_thickness - 2.0*cm"
phiw="54*degree"
debug="0"
/>
<sensors>
<!-- geometry for a single square sensor
- based on Hamamatsu H13700 MAPMT
(https://www.hamamatsu.com/us/en/product/type/H13700/index.html)
- N.B. not ideal for a magnetic field, SiPM matrix would be better
- effective area: 48.5x48.5mm
- enclosure size: 52x52mm
- 16x16 channel matrix (see readout segmentation below)
- pixel size: 3x3mm
- `side` is the side length of the square
- `thickness` is the depth of the sensor
- `gap` provides room between the squares, to help
prevent them from overlapping
- the value of `side` will determine how many sensors there are,
since the sensor placement algorithm will try to place as many
as it can in the specified patch below
-->
<module
material="Silicon"
surface="SensorSurface_DRICH"
vis="DRICH_sensor_vis"
side="48*mm"
thickness="35*mm"
gap="0.5*(52-48)*mm + 2*mm"
/>
<!-- sensors will be tiled on this sphere
- `center{x,y,z} is defined for sector on +x axis, defined w.r.t. snout frontplane,
and `radius` is the sphere radius; the first term of each of these comes from
the fun4all design
- these attributes were determined from a spherical fit to the
sensor placement in the fun4all port
- set `debug` to 1 so draw reference sphere instead, view with y-clipping
-->
<sphere
radius="159.76*DRICH_scale*cm"
centerx="144.91*DRICH_scale*cm"
centery="0*DRICH_scale*cm"
centerz="-197.25*DRICH_scale*cm + DRICH_Length - 0.5*DRICH_scale*DRICH_f4a_length"
debug="0"
/>
<!-- sensors will be limited to a patch of the sphere
- `thetamin` and `thetamax` define pseudorapidity coverage
- `widthfactor` controls the azimuthal coverage, where lower=wider
- `taper` defines half the angle between the azimuthal boundaries
- the size of the sensor controls how many sensors are placed
-->
<sphericalpatch
thetamin="-10*degree"
thetamax="22*degree"
widthfactor="1.8"
taper="56*degree"
/>
</sensors>
</detector>
</detectors>
<readouts>
<readout name="DRICHHits">
<segmentation type="CartesianGridXY" grid_size_x="3*mm" grid_size_y="3*mm"/>
<!-- cellID: 64bits
- bits 1-8: dRICh ID
- bits 9-16: sector number
- bits 17-32: photosensor number
- bits 33-48: x pixel (signed)
- bits 49-64: y pixel (signed)
-->
<id>system:8,sector:8,module:16,x:32:-16,y:-16</id>
</readout>
</readouts>
</lccdd>
compact/materials.xml
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...@@ -24,7 +24,7 @@ ...@@ -24,7 +24,7 @@
<composite n="15" ref="C"/> <composite n="15" ref="C"/>
<composite n="7" ref="O"/> <composite n="7" ref="O"/>
</material> </material>
<material name="Quartz"> <material name="Quartz"> <!-- different density than `SiliconDioxide` -->
<D type="density" value="2.2" unit="g/cm3"/> <D type="density" value="2.2" unit="g/cm3"/>
<composite n="1" ref="Si"/> <composite n="1" ref="Si"/>
<composite n="2" ref="O"/> <composite n="2" ref="O"/>
...@@ -45,11 +45,16 @@ ...@@ -45,11 +45,16 @@
<fraction n="0.998" ref="Fe"/> <fraction n="0.998" ref="Fe"/>
<fraction n=".002" ref="C"/> <fraction n=".002" ref="C"/>
</material> </material>
<material name="SiliconOxide"> <material name="SiliconOxide"> <!-- different density than `SiliconDioxide` -->
<D type="density" value="2.65" unit="g/cm3"/> <D type="density" value="2.65" unit="g/cm3"/>
<composite n="1" ref="Si"/> <composite n="1" ref="Si"/>
<composite n="2" ref="O"/> <composite n="2" ref="O"/>
</material> </material>
<material name="SiliconDioxide"> <!-- density from `G4_SILICON_DIOXIDE` (NIST DB) -->
<D type="density" value="2.32" unit="g/cm3"/>
<composite n="1" ref="Si"/>
<composite n="2" ref="O"/>
</material>
<material name="BoronOxide"> <material name="BoronOxide">
<D type="density" value="2.46" unit="g/cm3"/> <D type="density" value="2.46" unit="g/cm3"/>
<composite n="2" ref="B"/> <composite n="2" ref="B"/>
...@@ -258,6 +263,18 @@ ...@@ -258,6 +263,18 @@
<D type="density" value="2.21" unit="g/cm3"/> <D type="density" value="2.21" unit="g/cm3"/>
<composite n="1" ref="C"/> <composite n="1" ref="C"/>
</material> </material>
<material name="PolyvinylAcetate">
<D type="density" value="1.19" unit="g/cm3"/>
<composite n="4" ref="C"/>
<composite n="6" ref="H"/>
<composite n="2" ref="O"/>
</material>
<material name="Plexiglass">
<D type="density" value="1.19" unit="g/cm3"/>
<composite n="5" ref="C"/>
<composite n="8" ref="H"/>
<composite n="2" ref="O"/>
</material>
<material name="StainlessSteel"> <material name="StainlessSteel">
<D type="density" value="8.3" unit="g / cm3"/> <D type="density" value="8.3" unit="g / cm3"/>
<fraction n="0.74" ref="Fe"/> <fraction n="0.74" ref="Fe"/>
......
compact/optical_materials.xml
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...@@ -47,6 +47,298 @@ ...@@ -47,6 +47,298 @@
1240*eV/600 1.49 1240*eV/600 1.49
1240*eV/400 1.49 1240*eV/400 1.49
"/> "/>
<!-- BEGIN dRICh material properties
- dumped from fun4all implementation
- see https://github.com/cisbani/dRICh/blob/main/share/source/g4dRIChOptics.hh
-->
<!-- dRICh gas -->
<matrix name="RINDEX__C2F6_DRICH" coldim="2" values="
1.7712*eV 1.00075
1.92389*eV 1.00075
2.10539*eV 1.00075
2.3247*eV 1.00075
2.59502*eV 1.00076
2.93647*eV 1.00076
3.38139*eV 1.00077
3.98521*eV 1.00078
4.85156*eV 1.0008
6.19921*eV 1.00084
"/>
<matrix name="ABSLENGTH__C2F6_DRICH" coldim="2" values="
1.7712*eV 1000*mm
1.92389*eV 1000*mm
2.10539*eV 1000*mm
2.3247*eV 1000*mm
2.59502*eV 1000*mm
2.93647*eV 1000*mm
3.38139*eV 1000*mm
3.98521*eV 1000*mm
4.85156*eV 1000*mm
6.19921*eV 1000*mm
"/>
<!-- dRICh aerogel -->
<matrix name="RINDEX__Aerogel_DRICH" coldim="2" values="
1.87855*eV 1.01638
1.96673*eV 1.01642
2.0549*eV 1.01647
2.14308*eV 1.01652
2.23126*eV 1.01657
2.31943*eV 1.01662
2.40761*eV 1.01667
2.49579*eV 1.01673
2.58396*eV 1.01679
2.67214*eV 1.01685
2.76032*eV 1.01691
2.84849*eV 1.01698
2.93667*eV 1.01705
3.02485*eV 1.01712
3.11302*eV 1.01719
3.2012*eV 1.01727
3.28938*eV 1.01734
3.37755*eV 1.01742
3.46573*eV 1.01751
3.55391*eV 1.01759
3.64208*eV 1.01768
3.73026*eV 1.01777
3.81844*eV 1.01787
3.90661*eV 1.01796
3.99479*eV 1.01806
4.08297*eV 1.01816
4.17114*eV 1.01827
4.25932*eV 1.01838
4.3475*eV 1.01849
4.43567*eV 1.0186
4.52385*eV 1.01872
4.61203*eV 1.01884
4.7002*eV 1.01897
4.78838*eV 1.01909
4.87656*eV 1.01922
4.96473*eV 1.01936
5.05291*eV 1.0195
5.14109*eV 1.01964
5.22927*eV 1.01979
5.31744*eV 1.01994
5.40562*eV 1.02009
5.4938*eV 1.02025
5.58197*eV 1.02041
5.67015*eV 1.02057
5.75833*eV 1.02074
5.8465*eV 1.02092
5.93468*eV 1.0211
6.02286*eV 1.02128
6.11103*eV 1.02147
6.19921*eV 1.02167
"/>
<matrix name="ABSLENGTH__Aerogel_DRICH" coldim="2" values="
1.87855*eV 154*mm
1.96673*eV 156.17*mm
2.0549*eV 158.154*mm
2.14308*eV 159.974*mm
2.23126*eV 161.651*mm
2.31943*eV 163.2*mm
2.40761*eV 164.636*mm
2.49579*eV 165.97*mm
2.58396*eV 167.213*mm
2.67214*eV 168.374*mm
2.76032*eV 169.461*mm
2.84849*eV 170.481*mm
2.93667*eV 171.439*mm
3.02485*eV 172.342*mm
3.11302*eV 173.193*mm
3.2012*eV 173.998*mm
3.28938*eV 174.759*mm
3.37755*eV 175.481*mm
3.46573*eV 176.165*mm
3.55391*eV 176.817*mm
3.64208*eV 162.708*mm
3.73026*eV 140.953*mm
3.81844*eV 122.516*mm
3.90661*eV 106.833*mm
3.99479*eV 93.4428*mm
4.08297*eV 81.9694*mm
4.17114*eV 72.1072*mm
4.25932*eV 63.6011*mm
4.3475*eV 56.2434*mm
4.43567*eV 49.8599*mm
4.52385*eV 44.3054*mm
4.61203*eV 39.4601*mm
4.7002*eV 35.2211*mm
4.78838*eV 31.5049*mm
4.87656*eV 28.2374*mm
4.96473*eV 25.359*mm
5.05291*eV 22.8166*mm
5.14109*eV 20.5674*mm
5.22927*eV 18.5724*mm
5.31744*eV 16.7992*mm
5.40562*eV 15.2205*mm
5.4938*eV 13.8125*mm
5.58197*eV 12.5541*mm
5.67015*eV 11.4277*mm
5.75833*eV 10.4166*mm
5.8465*eV 9.50928*mm
5.93468*eV 8.69176*mm
6.02286*eV 7.95608*mm
6.11103*eV 7.29168*mm
6.19921*eV 6.69064*mm
"/>
<matrix name="RAYLEIGH__Aerogel_DRICH" coldim="2" values="
1.87855*eV 309.218*mm
1.96673*eV 257.383*mm
2.0549*eV 215.968*mm
2.14308*eV 182.559*mm
2.23126*eV 155.367*mm
2.31943*eV 133.053*mm
2.40761*eV 114.606*mm
2.49579*eV 99.2482*mm
2.58396*eV 86.3795*mm
2.67214*eV 75.5291*mm
2.76032*eV 66.3313*mm
2.84849*eV 58.4918*mm
2.93667*eV 51.777*mm
3.02485*eV 45.998*mm
3.11302*eV 41.0045*mm
3.2012*eV 36.6696*mm
3.28938*eV 32.8931*mm
3.37755*eV 29.5904*mm
3.46573*eV 26.6917*mm
3.55391*eV 24.1402*mm
3.64208*eV 21.8856*mm
3.73026*eV 19.8884*mm
3.81844*eV 18.1144*mm
3.90661*eV 16.533*mm
3.99479*eV 15.1206*mm
4.08297*eV 13.856*mm
4.17114*eV 12.7208*mm
4.25932*eV 11.7005*mm
4.3475*eV 10.7791*mm
4.43567*eV 9.94752*mm
4.52385*eV 9.1938*mm
4.61203*eV 8.51136*mm
4.7002*eV 7.88964*mm
4.78838*eV 7.32468*mm
4.87656*eV 6.80988*mm
4.96473*eV 6.33864*mm
5.05291*eV 5.907*mm
5.14109*eV 5.51232*mm
5.22927*eV 5.14932*mm
5.31744*eV 4.81668*mm
5.40562*eV 4.51044*mm
5.4938*eV 4.22796*mm
5.58197*eV 3.9666*mm
5.67015*eV 3.72504*mm
5.75833*eV 3.50196*mm
5.8465*eV 3.29604*mm
5.93468*eV 3.10464*mm
6.02286*eV 2.92644*mm
6.11103*eV 2.76144*mm
6.19921*eV 2.607*mm
"/>
<!-- dRICh acrylic -->
<matrix name="RINDEX__Acrylic_DRICH" coldim="2" values="
4.13281*eV 1.5017
4.22099*eV 1.5017
4.30916*eV 1.5017
4.39734*eV 1.5017
4.48552*eV 1.5017
4.57369*eV 1.5017
4.66187*eV 1.5017
4.75005*eV 1.5017
4.83822*eV 1.5017
4.9264*eV 1.5017
5.01458*eV 1.5017
5.10275*eV 1.5017
5.19093*eV 1.5017
5.27911*eV 1.5017
5.36728*eV 1.5017
5.45546*eV 1.5017
5.54364*eV 1.5017
5.63181*eV 1.5017
5.71999*eV 1.5017
5.80817*eV 1.5017
5.89634*eV 1.5017
5.98452*eV 1.5017
6.0727*eV 1.5017
6.16087*eV 1.5017
6.24905*eV 1.5017
6.33723*eV 1.5017
6.4254*eV 1.5017
6.51358*eV 1.5017
6.60176*eV 1.5017
6.68993*eV 1.5017
6.77811*eV 1.5017
6.86629*eV 1.5017
6.95446*eV 1.5017
7.04264*eV 1.5017
7.13082*eV 1.5017
7.21899*eV 1.5017
7.30717*eV 1.5017
7.39535*eV 1.5017
7.48353*eV 1.5017
7.5717*eV 1.5017
7.65988*eV 1.5017
7.74806*eV 1.5017
7.83623*eV 1.5017
7.92441*eV 1.5017
8.01259*eV 1.5017
8.10076*eV 1.5017
8.18894*eV 1.5017
8.27712*eV 1.5017
8.36529*eV 1.5017
8.45347*eV 1.5017
"/>
<matrix name="ABSLENGTH__Acrylic_DRICH" coldim="2" values="
4.13281*eV 82.0704*mm
4.22099*eV 36.9138*mm
4.30916*eV 13.3325*mm
4.39734*eV 5.03627*mm
4.48552*eV 2.3393*mm
4.57369*eV 1.36177*mm
4.66187*eV 0.933192*mm
4.75005*eV 0.708268*mm
4.83822*eV 0.573082*mm
4.9264*eV 0.483641*mm
5.01458*eV 0.420282*mm
5.10275*eV 0.373102*mm
5.19093*eV 0.33662*mm
5.27911*eV 0.307572*mm
5.36728*eV 0.283902*mm
5.45546*eV 0.264235*mm
5.54364*eV 0.247641*mm
5.63181*eV 0.233453*mm
5.71999*eV 0.221177*mm
5.80817*eV 0.210456*mm
5.89634*eV 0.201012*mm
5.98452*eV 0.192627*mm
6.0727*eV 0.185134*mm
6.16087*eV 0.178399*mm
6.24905*eV 0.172309*mm
6.33723*eV 0.166779*mm
6.4254*eV 0.166779*mm
6.51358*eV 0.166779*mm
6.60176*eV 0.166779*mm
6.68993*eV 0.166779*mm
6.77811*eV 0.166779*mm
6.86629*eV 0.166779*mm
6.95446*eV 0.166779*mm
7.04264*eV 0.166779*mm
7.13082*eV 0.166779*mm
7.21899*eV 0.166779*mm
7.30717*eV 0.166779*mm
7.39535*eV 0.166779*mm
7.48353*eV 0.166779*mm
7.5717*eV 0.166779*mm
7.65988*eV 0.166779*mm
7.74806*eV 0.166779*mm
7.83623*eV 0.166779*mm
7.92441*eV 0.166779*mm
8.01259*eV 0.166779*mm
8.10076*eV 0.166779*mm
8.18894*eV 0.166779*mm
8.27712*eV 0.166779*mm
8.36529*eV 0.166779*mm
8.45347*eV 0.166779*mm
"/>
<!-- END dRICh optical properties -->
</properties> </properties>
<materials> <materials>
<material name="AirOptical"> <material name="AirOptical">
...@@ -86,6 +378,32 @@ ...@@ -86,6 +378,32 @@
<composite n="8" ref="H"/> <composite n="8" ref="H"/>
<property name="RINDEX" ref="RINDEX__Acrylic"/> <property name="RINDEX" ref="RINDEX__Acrylic"/>
</material> </material>
<!-- BEGIN dRICh material definitions -->
<material name="C2F6_DRICH">
<D type="density" value="0.005734" unit="g/cm3"/>
<composite n="2" ref="C"/>
<composite n="6" ref="F"/>
<property name="RINDEX" ref="RINDEX__C2F6_DRICH"/>
<property name="ABSLENGTH" ref="ABSLENGTH__C2F6_DRICH"/>
</material>
<material name="Aerogel_DRICH">
<D type="density" value="0.1" unit="g/cm3"/>
<comment> n_air = [dens(Si02)-dens(aerogel)] / [dens(Si02)-dens(Air) ] </comment>
<fraction n=" (2.32-0.1) / (2.32-0.0012)" ref="Air"/>
<fraction n="1 - (2.32-0.1) / (2.32-0.0012)" ref="SiliconDioxide"/>
<property name="RINDEX" ref="RINDEX__Aerogel_DRICH"/>
<property name="ABSLENGTH" ref="ABSLENGTH__Aerogel_DRICH"/>
<property name="RAYLEIGH" ref="RAYLEIGH__Aerogel_DRICH"/>
</material>
<material name="Acrylic_DRICH">
<D type="density" value="1.19" unit="g/cm3"/>
<comment> TO BE IMPROVED </comment>
<fraction n="0.99" ref="Plexiglass"/>
<fraction n="0.01" ref="PolyvinylAcetate"/>
<property name="RINDEX" ref="RINDEX__Acrylic_DRICH"/>
<property name="ABSLENGTH" ref="ABSLENGTH__Acrylic_DRICH"/>
</material>
<!-- END dRICh material definitions -->
</materials> </materials>
<surfaces> <surfaces>
<opticalsurface finish="polished" model="glisur" name="MirrorOpticalSurface" type="dielectric_metal" value="0"> <opticalsurface finish="polished" model="glisur" name="MirrorOpticalSurface" type="dielectric_metal" value="0">
...@@ -131,5 +449,70 @@ ...@@ -131,5 +449,70 @@
--> -->
</opticalsurface> </opticalsurface>
<!-- BEGIN dRICh surface definitions -->
<opticalsurface name="MirrorSurface_DRICH" model="unified" finish="polishedfrontpainted" type="dielectric_dielectric">
<property name="REFLECTIVITY" coldim="2" values="
2.04358*eV 0.867812
2.0664*eV 0.865156
2.09046*eV 0.863906
2.14023*eV 0.86375
2.16601*eV 0.864062
2.20587*eV 0.864531
2.23327*eV 0.864375
2.26137*eV 0.865625
2.31972*eV 0.865313
2.35005*eV 0.865
2.38116*eV 0.864844
2.41313*eV 0.863828
2.44598*eV 0.863516
2.47968*eV 0.863125
2.53081*eV 0.862187
2.58354*eV 0.861719
2.6194*eV 0.861328
2.69589*eV 0.861016
2.73515*eV 0.861094
2.79685*eV 0.861602
2.86139*eV 0.862305
2.95271*eV 0.86375
3.04884*eV 0.865586
3.12665*eV 0.867383
3.2393*eV 0.870059
3.39218*eV 0.874199
3.52508*eV 0.878105
3.66893*eV 0.88252
3.82396*eV 0.887617
3.99949*eV 0.893721
4.13281*eV 0.898184
4.27679*eV 0.902744
4.48244*eV 0.907837
4.65057*eV 0.9102
4.89476*eV 0.909316
5.02774*eV 0.906174
5.16816*eV 0.900422
5.31437*eV 0.891521
5.63821*eV 0.859954
5.90401*eV 0.820831
6.19921*eV 0.762502
"/>
</opticalsurface>
<opticalsurface name="SensorSurface_DRICH" model="glisur" finish="polished" type="dielectric_metal">
<property name="EFFICIENCY" coldim="2" values="
1*eV 1
4*eV 1
7*eV 1
"/>
<property name="IMAGINARYRINDEX" coldim="2" values="
1*eV 1.69
4*eV 1.69
7*eV 1.69
"/>
<property name="REALRINDEX" coldim="2" values="
1*eV 1.92
4*eV 1.92
7*eV 1.92
"/>
</opticalsurface>
<!-- END dRICh surface definitions -->
</surfaces> </surfaces>
</lccdd> </lccdd>
src/DRich.cpp 0 → 100644
+ 395
− 0
View file @ 0fb63eac
//==========================================================================
// dRICh: Dual Ring Imaging Cherenkov Detector
//--------------------------------------------------------------------------
//
// Author: Christopher Dilks (Duke University)
//
// - Design Adapted from Standalone Fun4all and GEMC implementations
// [ Evaristo Cisbani, Cristiano Fanelli, Alessio Del Dotto, et al. ]
//
//==========================================================================
#include <XML/Helper.h>
#include "TMath.h"
#include "TString.h"
#include "GeometryHelpers.h"
#include "Math/Point2D.h"
#include "DDRec/Surface.h"
#include "DDRec/DetectorData.h"
#include "DD4hep/OpticalSurfaces.h"
#include "DD4hep/DetFactoryHelper.h"
#include "DD4hep/Printout.h"
using namespace std;
using namespace dd4hep;
using namespace dd4hep::rec;
// create the detector
static Ref_t createDetector(Detector& desc, xml::Handle_t handle, SensitiveDetector sens) {
xml::DetElement detElem = handle;
std::string detName = detElem.nameStr();
int detID = detElem.id();
DetElement det(detName, detID);
xml::Component dims = detElem.dimensions();
OpticalSurfaceManager surfMgr = desc.surfaceManager();
// attributes -----------------------------------------------------------
// TODO [low priority]: some attributes have default values, some do not;
// make this more consistent
// - vessel
double vesselZ0 = dims.attr<double>(_Unicode(z0));
double vesselLength = dims.attr<double>(_Unicode(length));
double vesselRmin0 = dims.attr<double>(_Unicode(rmin0));
double vesselRmin1 = dims.attr<double>(_Unicode(rmin1));
double vesselRmax0 = dims.attr<double>(_Unicode(rmax0));
double vesselRmax1 = dims.attr<double>(_Unicode(rmax1));
double vesselRmax2 = dims.attr<double>(_Unicode(rmax2));
double snoutLength = dims.attr<double>(_Unicode(snout_length));
int nSectors = getAttrOrDefault<int>(dims, _Unicode(nsectors), 6);
double wallThickness = getAttrOrDefault<double>(dims, _Unicode(wall_thickness), 0.5*cm);
double windowThickness = getAttrOrDefault<double>(dims, _Unicode(window_thickness), 0.1*cm);
auto vesselMat = desc.material(getAttrOrDefault(detElem, _Unicode(material), "Aluminum"));
auto gasvolMat = desc.material(getAttrOrDefault(detElem, _Unicode(gas), "AirOptical"));
auto vesselVis = desc.visAttributes(detElem.attr<std::string>(_Unicode(vis_vessel)));
auto gasvolVis = desc.visAttributes(detElem.attr<std::string>(_Unicode(vis_gas)));
// - radiator (applies to aerogel and filter)
auto radiatorElem = detElem.child(_Unicode(radiator));
double radiatorRmin = getAttrOrDefault<double>(radiatorElem, _Unicode(rmin), 10.*cm);
double radiatorRmax = getAttrOrDefault<double>(radiatorElem, _Unicode(rmax), 80.*cm);
double radiatorPhiw = getAttrOrDefault<double>(radiatorElem, _Unicode(phiw), 2*M_PI/nSectors);
double radiatorPitch = getAttrOrDefault<double>(radiatorElem, _Unicode(pitch), 0.*degree);
double radiatorFrontplane = getAttrOrDefault<double>(radiatorElem, _Unicode(frontplane), 2.5*cm);
// - aerogel
auto aerogelElem = radiatorElem.child(_Unicode(aerogel));
auto aerogelMat = desc.material(aerogelElem.attr<std::string>(_Unicode(material)));
auto aerogelVis = desc.visAttributes(aerogelElem.attr<std::string>(_Unicode(vis)));
double aerogelThickness = getAttrOrDefault<double>(aerogelElem, _Unicode(thickness), 2.5*cm);
// - filter
auto filterElem = radiatorElem.child(_Unicode(filter));
auto filterMat = desc.material(filterElem.attr<std::string>(_Unicode(material)));
auto filterVis = desc.visAttributes(filterElem.attr<std::string>(_Unicode(vis)));
double filterThickness = getAttrOrDefault<double>(filterElem, _Unicode(thickness), 2.5*cm);
// - mirror
auto mirrorElem = detElem.child(_Unicode(mirror));
auto mirrorMat = desc.material(mirrorElem.attr<std::string>(_Unicode(material)));
auto mirrorVis = desc.visAttributes(mirrorElem.attr<std::string>(_Unicode(vis)));
auto mirrorSurf = surfMgr.opticalSurface(getAttrOrDefault(mirrorElem, _Unicode(surface), "MirrorOpticalSurface"));
double mirrorBackplane = getAttrOrDefault<double>(mirrorElem, _Unicode(backplane), 240.*cm);
double mirrorThickness = getAttrOrDefault<double>(mirrorElem, _Unicode(thickness), 2.*mm);
double mirrorRadius = getAttrOrDefault<double>(mirrorElem, _Unicode(radius), 190*cm);
double mirrorCenterX = getAttrOrDefault<double>(mirrorElem, _Unicode(centerx), 95*cm);
double mirrorRmin = getAttrOrDefault<double>(mirrorElem, _Unicode(rmin), 10.*cm);
double mirrorRmax = getAttrOrDefault<double>(mirrorElem, _Unicode(rmax), 150.*cm);
double mirrorPhiw = getAttrOrDefault<double>(mirrorElem, _Unicode(phiw), 2*M_PI/nSectors);
int mirrorDebug = getAttrOrDefault<int>(mirrorElem, _Unicode(debug), 0);
// - sensor module
auto sensorElem = detElem.child(_Unicode(sensors)).child(_Unicode(module));
auto sensorMat = desc.material(sensorElem.attr<std::string>(_Unicode(material)));
auto sensorVis = desc.visAttributes(sensorElem.attr<std::string>(_Unicode(vis)));
auto sensorSurf = surfMgr.opticalSurface(getAttrOrDefault(sensorElem, _Unicode(surface), "MirrorOpticalSurface"));
double sensorSide = sensorElem.attr<double>(_Unicode(side));
double sensorGap = sensorElem.attr<double>(_Unicode(gap));
double sensorThickness = sensorElem.attr<double>(_Unicode(thickness));
// - sensor sphere
auto sensorSphElem = detElem.child(_Unicode(sensors)).child(_Unicode(sphere));
double sensorSphRadius = sensorSphElem.attr<double>(_Unicode(radius));
double sensorSphCenterX = sensorSphElem.attr<double>(_Unicode(centerx));
double sensorSphCenterY = sensorSphElem.attr<double>(_Unicode(centery));
double sensorSphCenterZ = sensorSphElem.attr<double>(_Unicode(centerz));
int sensorSphDebug = getAttrOrDefault<int>(sensorSphElem, _Unicode(debug), 0);
// - sensor sphere patch cuts
auto sensorSphPatchElem = detElem.child(_Unicode(sensors)).child(_Unicode(sphericalpatch));
double sensorSphPatchThetaMin = sensorSphPatchElem.attr<double>(_Unicode(thetamin));
double sensorSphPatchThetaMax = sensorSphPatchElem.attr<double>(_Unicode(thetamax));
double sensorSphPatchWidthFactor = sensorSphPatchElem.attr<double>(_Unicode(widthfactor));
double sensorSphPatchTaper = sensorSphPatchElem.attr<double>(_Unicode(taper));
// BUILD VESSEL ====================================================================
/* - `vessel`: aluminum enclosure, the mother volume of the dRICh
* - `gasvol`: gas volume, which fills `vessel`; all other volumes defined below
* are children of `gasvol`
* - the dRICh vessel geometry has two regions: the snout refers to the conic region
* in the front, housing the aerogel, while the tank refers to the cylindrical
* region, housing the rest of the detector components
*/
// snout solids
double boreDelta = vesselRmin1 - vesselRmin0;
Cone vesselSnout(
snoutLength/2.0,
vesselRmin0,
vesselRmax0,
vesselRmin0 + boreDelta * snoutLength / vesselLength,
vesselRmax1
);
Cone gasvolSnout(
/* note: `gasvolSnout` extends a bit into the tank, so it touches `gasvolTank`
* - the extension distance is equal to the tank `windowThickness`, so the
* length of `gasvolSnout` == length of `vesselSnout`
* - the extension backplane radius is calculated using similar triangles
*/
snoutLength/2.0,
vesselRmin0 + wallThickness,
vesselRmax0 - wallThickness,
vesselRmin0 + boreDelta * (snoutLength-windowThickness) / vesselLength + wallThickness,
vesselRmax1 - wallThickness + windowThickness * (vesselRmax1 - vesselRmax0) / snoutLength
);
// tank solids
Cone vesselTank(
(vesselLength - snoutLength)/2.0,
vesselSnout.rMin2(),
vesselRmax2,
vesselRmin1,
vesselRmax2
);
Cone gasvolTank(
(vesselLength - snoutLength)/2.0 - windowThickness,
gasvolSnout.rMin2(),
vesselRmax2 - wallThickness,
vesselRmin1 + wallThickness,
vesselRmax2 - wallThickness
);
// snout + tank solids
UnionSolid vesselSolid(
vesselTank,
vesselSnout,
Position(0., 0., -vesselLength/2.)
);
UnionSolid gasvolSolid(
gasvolTank,
gasvolSnout,
Position(0., 0., -vesselLength/2. + windowThickness)
);
// volumes
Volume vesselVol(detName, vesselSolid, vesselMat);
Volume gasvolVol(detName + "_gas", gasvolSolid, gasvolMat);
vesselVol.setVisAttributes(vesselVis);
gasvolVol.setVisAttributes(gasvolVis);
// reference position
auto snoutFront = Position(0., 0., -(vesselLength + snoutLength)/2.);
// sensitive detector type
sens.setType("photoncounter");
// SECTOR LOOP //////////////////////////////////
for(int isec=0; isec<nSectors; isec++) {
if(mirrorDebug*isec>0 || sensorSphDebug*isec>0) continue; // if debugging, draw only 1 sector
double sectorRotation = isec * 360/nSectors * degree; // sector rotation about z axis
// BUILD RADIATOR ====================================================================
// derived attributes
auto radiatorPos = Position(0., 0., radiatorFrontplane) + snoutFront;
// solid and volume: create aerogel and filter sectors
Tube aerogelSolid(radiatorRmin, radiatorRmax, aerogelThickness/2, -radiatorPhiw/2.0, radiatorPhiw/2.0);
Tube filterSolid( radiatorRmin, radiatorRmax, filterThickness/2, -radiatorPhiw/2.0, radiatorPhiw/2.0);
Volume aerogelVol("aerogel_v", aerogelSolid, aerogelMat);
Volume filterVol( "filter_v", filterSolid, filterMat);
aerogelVol.setVisAttributes(aerogelVis);
filterVol.setVisAttributes(filterVis);
// placement
auto aerogelPV = gasvolVol.placeVolume(aerogelVol,
RotationZ(sectorRotation) // rotate about beam axis to sector
* Translation3D(radiatorPos.x(), radiatorPos.y(), radiatorPos.z()) // re-center to snoutFront
* RotationY(radiatorPitch) // change polar angle to specified pitch
);
auto filterPV = gasvolVol.placeVolume(filterVol,
RotationZ(sectorRotation) // rotate about beam axis to sector
* Translation3D(radiatorPos.x(), radiatorPos.y(), radiatorPos.z()) // re-center to snoutFront
* RotationY(radiatorPitch) // change polar angle
* Translation3D(0., 0., (aerogelThickness+filterThickness)/2.) // move to aerogel backplane
);
// properties
// TODO [critical]: define skin properties for aerogel and filter
DetElement aerogelDE(det, Form("aerogel_de%d", isec), isec);
aerogelDE.setPlacement(aerogelPV);
//SkinSurface aerogelSkin(desc, aerogelDE, Form("mirror_optical_surface%d", isec), aerogelSurf, aerogelVol);
//aerogelSkin.isValid();
DetElement filterDE(det, Form("filter_de%d", isec), isec);
filterDE.setPlacement(filterPV);
//SkinSurface filterSkin(desc, filterDE, Form("mirror_optical_surface%d", isec), filterSurf, filterVol);
//filterSkin.isValid();
// BUILD MIRROR ====================================================================
// derived attributes
auto mirrorPos = Position(mirrorCenterX, 0., mirrorBackplane) + snoutFront;
double mirrorThetaRot = std::asin(mirrorCenterX/mirrorRadius);
double mirrorTheta1 = mirrorThetaRot - std::asin((mirrorCenterX-mirrorRmin)/mirrorRadius);
double mirrorTheta2 = mirrorThetaRot + std::asin((mirrorRmax-mirrorCenterX)/mirrorRadius);
// if debugging, draw full sphere
if(mirrorDebug>0) { mirrorTheta1=0; mirrorTheta2=M_PI; mirrorPhiw=2*M_PI; };
// solid and volume: create sphere at origin, with specified angular limits
Sphere mirrorSolid(
mirrorRadius-mirrorThickness,
mirrorRadius,
mirrorTheta1,
mirrorTheta2,
-mirrorPhiw/2.0,
mirrorPhiw/2.0
);
Volume mirrorVol("mirror_v", mirrorSolid, mirrorMat);
mirrorVol.setVisAttributes(mirrorVis);
// placement (note: transformations are in reverse order)
auto mirrorPV = gasvolVol.placeVolume(mirrorVol,
RotationZ(sectorRotation) // rotate about beam axis to sector
* Translation3D(0,0,-mirrorRadius) // move longitudinally so it intersects snoutFront
* Translation3D(mirrorPos.x(), mirrorPos.y(), mirrorPos.z()) // re-center to snoutFront
* RotationY(-mirrorThetaRot) // rotate about origin
);
// properties
DetElement mirrorDE(det, Form("mirror_de%d", isec), isec);
mirrorDE.setPlacement(mirrorPV);
SkinSurface mirrorSkin(desc, mirrorDE, Form("mirror_optical_surface%d", isec), mirrorSurf, mirrorVol);
mirrorSkin.isValid();
// BUILD SENSORS ====================================================================
// if debugging sphere properties, restrict number of sensors drawn
if(sensorSphDebug>0) { sensorSide = 2*M_PI*sensorSphRadius / 64; };
// solid and volume: single sensor module
Box sensorSolid(sensorSide/2., sensorSide/2., sensorThickness/2.);
Volume sensorVol("sensor_v", sensorSolid, sensorMat);
sensorVol.setVisAttributes(sensorVis);
// sensitivity
sensorVol.setSensitiveDetector(sens);
// SENSOR MODULE LOOP ------------------------
/* ALGORITHM: generate sphere of positions
* - NOTE: there are two coordinate systems here:
* - "global" the main ATHENA coordinate system
* - "generator" (vars end in `Gen`) is a local coordinate system for
* generating points on a sphere; it is related to the global system by
* a rotation; we do this so the "patch" (subset of generated
* positions) of sensors we choose to build is near the equator, where
* point distribution is more uniform
* - PROCEDURE: loop over `thetaGen`, with subloop over `phiGen`, each divided evenly
* - the number of points to generate depends how many sensors (+`sensorGap`)
* can fit within each ring of constant `thetaGen` or `phiGen`
* - we divide the relevant circumference by the sensor
* size(+`sensorGap`), and this number is allowed to be a fraction,
* because likely we don't care about generating a full sphere and
* don't mind a "seam" at the overlap point
* - if we pick a patch of the sphere near the equator, and not near
* the poles or seam, the sensor distribution will appear uniform
*/
// initialize module number for this sector
int imod=1;
// thetaGen loop: iterate less than "0.5 circumference / sensor size" times
double nTheta = M_PI*sensorSphRadius / (sensorSide+sensorGap);
for(int t=0; t<(int)(nTheta+0.5); t++) {
double thetaGen = t/((double)nTheta) * M_PI;
// phiGen loop: iterate less than "circumference at this latitude / sensor size" times
double nPhi = 2*M_PI * sensorSphRadius * std::sin(thetaGen) / (sensorSide+sensorGap);
for(int p=0; p<(int)(nPhi+0.5); p++) {
double phiGen = p/((double)nPhi) * 2*M_PI - M_PI; // shift to [-pi,pi]
// determine global phi and theta
// - convert {radius,thetaGen,phiGen} -> {xGen,yGen,zGen}
double xGen = sensorSphRadius * std::sin(thetaGen) * std::cos(phiGen);
double yGen = sensorSphRadius * std::sin(thetaGen) * std::sin(phiGen);
double zGen = sensorSphRadius * std::cos(thetaGen);
// - convert {xGen,yGen,zGen} -> global {x,y,z} via rotation
double x = zGen;
double y = xGen;
double z = yGen;
// - convert global {x,y,z} -> global {phi,theta}
double phi = std::atan2(y,x);
double theta = std::acos(z/sensorSphRadius);
// cut spherical patch
// TODO [low priority]: instead of cutting a patch with complicated parameters,
// can we use something simpler such as Union or
// Intersection of solids?
// - applied on global coordinates
// - theta cuts are signed, since we will offset the patch along +x;
// from the offset position, toward barrel is positive, toward beam is negative
double thetaSigned = (x<0?-1:1) * theta;
// - position of yz planes, associated to theta cuts
double xmin = sensorSphRadius * std::sin(sensorSphPatchThetaMin/2);
double xmax = sensorSphRadius * std::sin(sensorSphPatchThetaMax/2);
// - we want a phi wedge, but offset from the origin to allow more width, so
// define phiCheck to account for the offset; the amount of the offset,
// and hence the width, is controlled by `sensorSphPatchWidthFactor`
double phiCheck = std::atan2(y,(x+sensorSphCenterX)/sensorSphPatchWidthFactor);
// - apply cuts (only if not debugging)
// - NOTE: use `x<xmax` for straight cuts, or `theta<sensorSphPatchThetaMax` for
// rounded cuts (which allows for more sensors)
if( ( std::fabs(phiCheck)<sensorSphPatchTaper && x>xmin && theta<sensorSphPatchThetaMax && z>0 )
|| sensorSphDebug>0
) {
// placement (note: transformations are in reverse order)
// - transformations operate on global coordinates; the corresponding
// generator coordinates are provided in the comments
auto sensorPV = gasvolVol.placeVolume(sensorVol,
RotationZ(sectorRotation) // rotate about beam axis to sector
* Translation3D(sensorSphCenterX, sensorSphCenterY, sensorSphCenterZ) // move sphere to specified center
* Translation3D(snoutFront.x(), snoutFront.y(), snoutFront.z()) // move sphere to reference position
* RotationX(phiGen) // rotate about `zGen`
* RotationZ(thetaGen) // rotate about `yGen`
* Translation3D(sensorSphRadius, 0., 0.) // push radially to spherical surface
* RotationY(M_PI/2) // rotate sensor to be compatible with generator coords
);
// properties
sensorPV.addPhysVolID("sector", isec).addPhysVolID("module", imod);
DetElement sensorDE(det, Form("sensor_de%d_%d", isec, imod), 10000*isec+imod);
sensorDE.setPlacement(sensorPV);
SkinSurface sensorSkin(desc, sensorDE, Form("sensor_optical_surface%d", isec), sensorSurf, sensorVol);
sensorSkin.isValid();
// increment sensor module number
imod++;
}; // end patch cuts
}; // end phiGen loop
}; // end thetaGen loop
// END SENSOR MODULE LOOP ------------------------
}; // END SECTOR LOOP //////////////////////////
// place gas volume
PlacedVolume gasvolPV = vesselVol.placeVolume(gasvolVol,Position(0, 0, 0));
DetElement gasvolDE(det, "gasvol_de", 0);
gasvolDE.setPlacement(gasvolPV);
// place mother volume (vessel)
Volume motherVol = desc.pickMotherVolume(det);
PlacedVolume vesselPV = motherVol.placeVolume(vesselVol,
Position(0, 0, vesselZ0) - snoutFront
);
vesselPV.addPhysVolID("system", detID);
det.setPlacement(vesselPV);
return det;
};
// clang-format off
DECLARE_DETELEMENT(athena_DRICH, createDetector)
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