<lccdd>
<comment> Endcap Tracker </comment>
<define>
<constant name="GEMTrackerEndcap_zmin" value="BarrelTracking_zmax"/>
<constant name="GEMTrackerEndcap_NLayers" value="1"/>
<constant name="GEMTrackerEndcapFoilOpeningAngle" value="30.1*degree"/>
<comment>
____X2____
\ /
\ / Y (=z for the trd)
\_X1_/
</comment>
<constant name="GEMTrackerEndcapFoilX1" value="43.0 * mm"/>
<constant name="GEMTrackerEndcapLayer_thickness" value="ForwardTrackingGEMLength/GEMTrackerEndcap_NLayers"/>
<constant name="GEMTrackerEndcapFoil_rmin" value="GEMTrackerEndcapFoilX1/(tan(GEMTrackerEndcapFoilOpeningAngle/2.0)*2.0)"/>
<constant name="GEMTrackerEndcapFoilY" value="BarrelTracking_rmax- GEMTrackerEndcapFoil_rmin- 1.0*cm"/>
<constant name="GEMTrackerEndcapFoilX2" value="2*GEMTrackerEndcapFoilY*tan(GEMTrackerEndcapFoilOpeningAngle/2.0) + GEMTrackerEndcapFoilX1"/>
<constant name="GEMTrackerEndcapFoil_rmax" value="(GEMTrackerEndcapFoilY+GEMTrackerEndcapFoil_rmin)/(cos(GEMTrackerEndcapFoilOpeningAngle/2.0))"/>
<comment>
Needs implimentation:
Carbon fiber support ring and spokes
Initial preliminary details can be found here: https://www.dropbox.com/s/grt9p8feqlsh52f/GEM-RD-GEMWheel.pdf?dl=0
This design is still very much preliminary
// Frame parameters accoring to Kondo's sbsCrossSection.pdf file),
//frame thickness is from 1*3mm (drift gap) + 5*2mm frames
</comment>
<constant name="GEMTrackerEndcapFrame_thickness" value="13.0 * mm"/>
<constant name="GEMTrackerEndcapFrameBotEdge_width" value="10.0 * mm"/>
<constant name="GEMTrackerEndcapFrameTopEdge_width" value="15.0 * mm"/>
<constant name="GEMTrackerEndcapFrameSideEdge_width" value=" 8.0 * mm"/>
<comment> Account for the fact that GEMs have holes, so they are not solid volumes </comment>
<constant name="GEMAreaFactor" value="0.80" />
<comment>
From https://github.com/eic/EicToyModel/blob/master/source/eicroot/GemGeoParData.cxx
// FIXME: put aluminum layer later as well),
mEntranceWindowMaterial ( "GemKapton"),
mEntranceWindowThickness ( 50.0 * etm::um),
// Use evaristo.pdf p.10 for the foil parameters:
// - drift foil : 50um kapton + 3um copper)
// - GEM foil : 30um kapton + 3um copper (80% area fraction))
// - readout foils : 30um kapton + 3um copper total)
mDriftFoilKaptonThickness ( 50.0 * etm::um),
mDriftFoilCopperThickness ( 3.0 * etm::um),
mGemFoilAreaFraction ( 0.80),
mGemFoilKaptonThickness ( 30.0 * etm::um),
mGemFoilCopperThickness ( 3.0 * etm::um),
mReadoutG10Thickness ( 0.0 * etm::mm),
mReadoutKaptonThickness ( 30.0 * etm::um),
mReadoutCopperThickness ( 3.0 * etm::um),
// 3mm thick Nomex honeycomb for SBS GEMs),
mReadoutSupportMaterial ( "GemNomex"),
mReadoutSupportThickness ( 3.0 * etm::mm),
mEntranceRegionLength ( 3.0 * etm::mm),
mDriftRegionLength ( 3.0 * etm::mm),
// Assume triple GEM layout),
mFirstTransferRegionLength ( 2.0 * etm::mm),
mSecondTransferRegionLength ( 2.0 * etm::mm),
mInductionRegionLength ( 2.0 * etm::mm)
</comment>
</define>
<limits>
</limits>
<regions>
</regions>
<display>
</display>
<detectors>
<detector
id="GEMTrackerEndcap_ID"
name="GEMTrackerEndcap"
type="athena_GEMTrackerEndcap"
readout="GEMTrackerEndcapHits"
vis="AnlRed"
reflect="false">
<module name="GEMModule1" vis="AnlProcess_Blue">
<trd x1="GEMTrackerEndcapFoilX1/2.0" x2="GEMTrackerEndcapFoilX2/2.0" z="GEMTrackerEndcapFoilY/2"/>
<frame material="G10" thickness="GEMTrackerEndcapFrame_thickness" vis="TrackerSupportVis">
<position x="0" y="0" z="0" />
<trd x1="GEMTrackerEndcapFoilX1/2.0 - GEMTrackerEndcapFrameSideEdge_width/cos(GEMTrackerEndcapFoilOpeningAngle)
+ GEMTrackerEndcapFrameBotEdge_width*tan(GEMTrackerEndcapFoilOpeningAngle)"
x2="GEMTrackerEndcapFoilX2/2.0 - GEMTrackerEndcapFrameSideEdge_width/cos(GEMTrackerEndcapFoilOpeningAngle)
- GEMTrackerEndcapFrameTopEdge_width*tan(GEMTrackerEndcapFoilOpeningAngle)"
z="GEMTrackerEndcapFoilY/2 - (GEMTrackerEndcapFrameBotEdge_width +GEMTrackerEndcapFrameTopEdge_width)/2.0 ">
<position x="0" y="0" z="0" />
</trd>
</frame>
<comment> Going from HV side to readout side</comment>
<module_component thickness="25.0*um" material="Mylar" name="entrance_window"/>
<module_component thickness=" 2.0*mm" material="Ar10CO2" name="entrance_region" />
<module_component thickness="50.0*um" material="Kapton" name="cathode_foil"/>
<module_component thickness=" 5.0*um" material="Copper" name="cathode_cu"/>
<module_component thickness=" 3.0*mm" material="Ar10CO2" sensitive="true" name="drift_region" vis="AnlProcess_Blue"/>
<module_component thickness="GEMAreaFactor*50.0*um" material="Kapton" name="gem_foil_1"/>
<module_component thickness="GEMAreaFactor*10.0*um" material="Copper" name="gem_foil_1_cu"/>
<module_component thickness=" 2.0*mm" material="Ar10CO2" name="transfer_region_I"/>
<module_component thickness="GEMAreaFactor*50.0*um" material="Kapton" name="gem_foil_2"/>
<module_component thickness="GEMAreaFactor*10.0*um" material="Copper" name="gem_foil_2_cu"/>
<module_component thickness=" 2.0*mm" material="Ar10CO2" name="transfer_region_II"/>
<module_component thickness="GEMAreaFactor*50.0*um" material="Kapton" name="gem_foil_3"/>
<module_component thickness="GEMAreaFactor*10.0*um" material="Copper" name="gem_foil_3_cu"/>
<module_component thickness=" 2.0*mm" material="Ar10CO2" name="induction_region"/>
<module_component thickness="50.0*um" material="Kapton" name="readout_foil"/>
<module_component thickness=" 5.0*um" material="Copper" name="readout_cu"/>
<module_component thickness=" 2.0*mm" material="Ar10CO2" name="exit_region"/>
<module_component thickness="25.0*um" material="Mylar" name="exit_window"/>
</module>
<module name="GEMSupportModule1" vis="AnlProcess_Blue">
<trd x1="GEMTrackerEndcapFoilX1/2.0" x2="GEMTrackerEndcapFoilX2/2.0" z="GEMTrackerEndcapFoilY/2"/>
<frame material="G10" thickness="GEMTrackerEndcapFrame_thickness" vis="TrackerSupportVis">
<position x="0" y="0" z="0" />
<trd x1="GEMTrackerEndcapFoilX1/2.0 - GEMTrackerEndcapFrameSideEdge_width/cos(GEMTrackerEndcapFoilOpeningAngle)
+ GEMTrackerEndcapFrameBotEdge_width*tan(GEMTrackerEndcapFoilOpeningAngle)"
x2="GEMTrackerEndcapFoilX2/2.0 - GEMTrackerEndcapFrameSideEdge_width/cos(GEMTrackerEndcapFoilOpeningAngle)
- GEMTrackerEndcapFrameTopEdge_width*tan(GEMTrackerEndcapFoilOpeningAngle)"
z="GEMTrackerEndcapFoilY/2 - (GEMTrackerEndcapFrameBotEdge_width +GEMTrackerEndcapFrameTopEdge_width)/2.0 ">
<position x="0" y="0" z="0" />
</trd>
</frame>
</module>
<module name="GEMSupportModule2" vis="AnlProcess_Blue">
<trd x1="GEMTrackerEndcapFrameSideEdge_width" x2="GEMTrackerEndcapFrameSideEdge_width" z="GEMTrackerEndcapFoilY/2"/>
<module_component thickness="1.0*mm" material="Mylar"/>
</module>
<layer id="1" >
<ring vis="AnlRed" module="GEMModule1"
r="GEMTrackerEndcapFoil_rmin+GEMTrackerEndcapFoilY/2.0"
zstart="GEMTrackerEndcap_zmin + 0.5*GEMTrackerEndcapLayer_thickness"
nmodules="12" dz="10 * mm" />
<!--
<ring vis="AnlRed" module="GEMSupportModule1"
r="GEMTrackerEndcapFoil_rmin+GEMTrackerEndcapFoilY/2.0"
zstart="GEMTrackerEndcap_zmin + 0.5*GEMTrackerEndcapLayer_thickness"
nmodules="12" dz="10 * mm"/>
-->
<ring vis="AnlBlue" phi0="15.0*degree" module="GEMSupportModule2"
r="GEMTrackerEndcapFoil_rmin+GEMTrackerEndcapFoilY/2.0"
zstart="GEMTrackerEndcap_zmin + 0.5*GEMTrackerEndcapLayer_thickness"
nmodules="12" dz="0 * mm" />
</layer>
</detector>
<detector
id="GEMTrackerEndcapN_ID"
name="GEMTrackerEndcapN"
type="athena_GEMTrackerEndcap"
readout="GEMTrackerEndcapHits"
vis="AnlRed"
reflect="true">
<module name="GEMModule1" vis="AnlProcess_Blue">
<trd x1="GEMTrackerEndcapFoilX1/2.0" x2="GEMTrackerEndcapFoilX2/2.0" z="GEMTrackerEndcapFoilY/2"/>
<frame material="G10" thickness="GEMTrackerEndcapFrame_thickness" vis="TrackerSupportVis">
<position x="0" y="0" z="0" />
<trd x1="GEMTrackerEndcapFoilX1/2.0 - GEMTrackerEndcapFrameSideEdge_width/cos(GEMTrackerEndcapFoilOpeningAngle)
+ GEMTrackerEndcapFrameBotEdge_width*tan(GEMTrackerEndcapFoilOpeningAngle)"
x2="GEMTrackerEndcapFoilX2/2.0 - GEMTrackerEndcapFrameSideEdge_width/cos(GEMTrackerEndcapFoilOpeningAngle)
- GEMTrackerEndcapFrameTopEdge_width*tan(GEMTrackerEndcapFoilOpeningAngle)"
z="GEMTrackerEndcapFoilY/2 - (GEMTrackerEndcapFrameBotEdge_width +GEMTrackerEndcapFrameTopEdge_width)/2.0 ">
<position x="0" y="0" z="0" />
</trd>
</frame>
<comment> Going from HV side to readout side</comment>
<module_component thickness="25.0*um" material="Mylar" name="entrance_window"/>
<module_component thickness=" 2.0*mm" material="Ar10CO2" name="entrance_region" />
<module_component thickness="50.0*um" material="Kapton" name="cathode_foil"/>
<module_component thickness=" 5.0*um" material="Copper" name="cathode_cu"/>
<module_component thickness=" 3.0*mm" material="Ar10CO2" sensitive="true" name="drift_region" vis="AnlProcess_Blue"/>
<module_component thickness="GEMAreaFactor*50.0*um" material="Kapton" name="gem_foil_1"/>
<module_component thickness="GEMAreaFactor*10.0*um" material="Copper" name="gem_foil_1_cu"/>
<module_component thickness=" 2.0*mm" material="Ar10CO2" name="transfer_region_I"/>
<module_component thickness="GEMAreaFactor*50.0*um" material="Kapton" name="gem_foil_2"/>
<module_component thickness="GEMAreaFactor*10.0*um" material="Copper" name="gem_foil_2_cu"/>
<module_component thickness=" 2.0*mm" material="Ar10CO2" name="transfer_region_II"/>
<module_component thickness="GEMAreaFactor*50.0*um" material="Kapton" name="gem_foil_3"/>
<module_component thickness="GEMAreaFactor*10.0*um" material="Copper" name="gem_foil_3_cu"/>
<module_component thickness=" 2.0*mm" material="Ar10CO2" name="induction_region"/>
<module_component thickness="50.0*um" material="Kapton" name="readout_foil"/>
<module_component thickness=" 5.0*um" material="Copper" name="readout_cu"/>
<module_component thickness=" 2.0*mm" material="Ar10CO2" name="exit_region"/>
<module_component thickness="25.0*um" material="Mylar" name="exit_window"/>
</module>
<module name="GEMSupportModule1" vis="AnlProcess_Blue">
<trd x1="GEMTrackerEndcapFoilX1/2.0" x2="GEMTrackerEndcapFoilX2/2.0" z="GEMTrackerEndcapFoilY/2"/>
<frame material="G10" thickness="GEMTrackerEndcapFrame_thickness" vis="TrackerSupportVis">
<position x="0" y="0" z="0" />
<trd x1="GEMTrackerEndcapFoilX1/2.0 - GEMTrackerEndcapFrameSideEdge_width/cos(GEMTrackerEndcapFoilOpeningAngle)
+ GEMTrackerEndcapFrameBotEdge_width*tan(GEMTrackerEndcapFoilOpeningAngle)"
x2="GEMTrackerEndcapFoilX2/2.0 - GEMTrackerEndcapFrameSideEdge_width/cos(GEMTrackerEndcapFoilOpeningAngle)
- GEMTrackerEndcapFrameTopEdge_width*tan(GEMTrackerEndcapFoilOpeningAngle)"
z="GEMTrackerEndcapFoilY/2 - (GEMTrackerEndcapFrameBotEdge_width +GEMTrackerEndcapFrameTopEdge_width)/2.0 ">
<position x="0" y="0" z="0" />
</trd>
</frame>
</module>
<module name="GEMSupportModule2" vis="AnlProcess_Blue">
<trd x1="GEMTrackerEndcapFrameSideEdge_width" x2="GEMTrackerEndcapFrameSideEdge_width" z="GEMTrackerEndcapFoilY/2"/>
<module_component thickness="1.0*mm" material="Mylar"/>
</module>
<layer id="1" >
<ring vis="AnlRed" module="GEMModule1"
r="GEMTrackerEndcapFoil_rmin+GEMTrackerEndcapFoilY/2.0"
zstart="GEMTrackerEndcap_zmin + 0.5*GEMTrackerEndcapLayer_thickness"
nmodules="12" dz="10 * mm" />
<ring vis="AnlBlue" phi0="15.0*degree" module="GEMSupportModule2"
r="GEMTrackerEndcapFoil_rmin+GEMTrackerEndcapFoilY/2.0"
zstart="GEMTrackerEndcap_zmin + 0.5*GEMTrackerEndcapLayer_thickness"
nmodules="12" dz="0 * mm" />
</layer>
</detector>
</detectors>
<readouts>
<readout name="GEMTrackerEndcapHits">
<segmentation type="CartesianGridXY" grid_size_x="1.0*mm" grid_size_y="1.0*mm" />
<id>system:8,barrel:2,layer:4,module:12,sensor:2,x:32:-16,y:-16</id>
</readout>
</readouts>
<plugins>
</plugins>
<fields>
</fields>
</lccdd>