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<?xml version="1.0" encoding="UTF-8"?>
<lccdd>
<documentation>
### Silicon Tracker
#### Some references:
- With some added info on ITS3 chip from https://indico.bnl.gov/event/10677/contributions/45591/attachments/33204/53254/20210318-IR2%40EIC-SVT.pdf
To be used as standin until we get more detailed specs from the working group on the tracker.
- https://wiki.bnl.gov/athena/index.php/Tracking
Note: initial implementation with hard-coded values,
TODO: add parametrization
#### ITS3 sensors
ITS3 sensor thickness:
- 40um, pixel size: 10um (segmentation)
- total X0 0.55% per barrel layer:
- 0.35 mm aluminum ~ 0.4% X0.
- 2 x carbonfiber (RL ~ 28) 0.12 mm (!!! material scan shows ~0.17mm, need to check later) to match Si (RL~9) of 0.04mm ~ 0.04%
total X0 0.24% per disk layer （4 sectors per disk):
- 0.15 mm aluminum ~ 0.16% X0.
- 1 x carbonfiber (RL ~ 28) 0.12 mm to match Si (RL~9) of 0.04mm ~ 0.04%
</documentation>
<comment>
Layer_rOffset is used to add inside space so the _rmin value is the nominal sensor radius.
TrackerBarrelSpaceFrame_height must be smaller than {_rmin2 - _rmin1 - Layer_rOffset - 1mm - stave_thickness}
<constant name="TrackerBarrelLayer_rOffset" value="0.5*cm"/>
<constant name="TrackerBarrelSpaceFrame_width" value="4.0*cm"/>
<constant name="TrackerBarrelSpaceFrame_height" value="1.0*cm"/>
<constant name="TrackerSensor_thickness" value="ITS3Thickness"/>
<constant name="TrackerBarrelInner_rmin1" value="21.0*cm"/>
<constant name="TrackerBarrelInner_rmin2" value="22.68*cm"/>
<constant name="TrackerBarrelInner_length1" value="54.0*cm"/>
<constant name="TrackerBarrelInner_length2" value="60.0*cm"/>
<constant name="TrackerBarrelOuter_rmin1" value="39.3*cm"/>
<constant name="TrackerBarrelOuter_rmin2" value="43.23*cm"/>
<constant name="TrackerBarrelOuter_length1" value="105.0*cm"/>
<constant name="TrackerBarrelOuter_length2" value="114.0*cm"/>
<constant name="TrackerBarrelInner_thickness" value="TrackerBarrelInner_rmin2 - TrackerBarrelInner_rmin1"/>
<constant name="TrackerBarrelOuter_thickness" value="TrackerBarrelOuter_rmin2 - TrackerBarrelOuter_rmin1"/>
<constant name="TrackerBarrelInner_length" value="TrackerBarrelInner_length2+1.0*cm"/>
<constant name="TrackerBarrelOuter_length" value="TrackerBarrelOuter_length2+1.0*cm"/>
<comment>
Here we are assuming the two endcaps (P and N) are symmetric.
</comment>
<constant name="TrackerEndcapInner_nLayers" value="1"/>
<constant name="TrackerEndcapOuter_nLayers" value="3"/>
<constant name="TrackerEndcapLayer_dz" value="2*cm"/>
<constant name="TrackerEndcapModule_dz" value="2.5*mm"/>
<constant name="TrackerEndcapInner_zmin" value="49*cm"/>
<constant name="TrackerEndcapInner_zmax" value="TrackerEndcapInner_zmin+TrackerEndcapLayer_dz"/>
<constant name="TrackerEndcapInner_length" value="TrackerEndcapLayer_dz"/>
<constant name="TrackerEndcapInnerLayer_thickness" value="min(3.0*cm,TrackerEndcapLayer_dz - 0.5*cm)"/>
<constant name="TrackerEndcapOuter_zmin1" value="73*cm"/>
<constant name="TrackerEndcapOuter_zmin2" value="97*cm"/>
<constant name="TrackerEndcapOuter_zmin3" value="121*cm"/>
<constant name="TrackerEndcapOuter_zmin" value="TrackerEndcapOuter_zmin1"/>
<constant name="TrackerEndcapOuter_zmax" value="TrackerEndcapOuter_zmin3 + TrackerEndcapLayer_dz"/>
<constant name="TrackerEndcapOuterLayer_thickness" value="min(5.0*cm,TrackerEndcapLayer_dz - 1.0*cm)"/>
<comment> Note, the -1.0*cm is so the layers do not touch surfaces.
This is a limitation of ACTS geometry which will likely go away in the future.</comment>
<constant name="TrackerEndcapInner_rmin1" value="Beampipe_rmax+1.0*cm"/>
<!-- <constant name="TrackerEndcapInner_rmin2" value="Beampipe_rmax+1.0*cm"/> -->
<comment> this can be parametrized as a function of z. From acts check: rmin must > 3.57627cm which is beampipe_max+0.4cm</comment>
<constant name="TrackerEndcapOuter_rmin1" value="3.6*cm"/>
<constant name="TrackerEndcapOuter_rmin2" value="4.7*cm"/>
<constant name="TrackerEndcapOuter_rmin3" value="5.91*cm"/>
<constant name="TrackerEndcapInner_rmax1" value="36.26*cm-5.0*mm"/>
<constant name="TrackerEndcapOuter_rmax1" value="43.23*cm"/>
<constant name="TrackerEndcapOuter_rmax2" value="43.23*cm"/>
<constant name="TrackerEndcapOuter_rmax3" value="43.23*cm"/>
<comment> The carbonfiber shell covers the outer 3 disks and intercepts with the diagonal cone at
TrackerEndcapOuter_rmax1 * TrackerEndcapInner_zmin/TrackerEndcapInner_rmax1 ~ 60cm </comment>
<constant name="TrackerEndcapOuterShell_zmin" value="TrackerEndcapOuter_rmax1 * TrackerEndcapInner_zmin/TrackerEndcapInner_rmax1+1*cm"/>
<constant name="TrackerEndcapOuterShell_length" value="TrackerEndcapOuter_zmax- TrackerEndcapOuterShell_zmin"/>
<constant name="TrackerEndcap_NModules" value="12"/>
<comment> nmodules = np.pi/np.arcsin(frame_width*np.cos(tilt_angle)/2.0/R) </comment>
<constant name="TrackerBarrel_StaveTiltAngle" value="5.0*degree"/>
<constant name="TrackerBarrelInner_NModules1" value="33"/>
<constant name="TrackerBarrelInner_NModules2" value="36"/>
<constant name="TrackerBarrelOuter_NModules1" value="62"/>
<constant name="TrackerBarrelOuter_NModules2" value="68"/>
<constant name="TrackerEndcapInnerModOpeningAngle" value="360.0/TrackerEndcap_NModules*degree"/>
<constant name="TrackerEndcapInnerMod1_x1" value="2.0*TrackerEndcapInner_rmin1*sin(TrackerEndcapInnerModOpeningAngle/2.0)"/>
<constant name="TrackerEndcapInnerMod1_x2" value="2.0*TrackerEndcapInner_rmax1*sin(TrackerEndcapInnerModOpeningAngle/2.0)"/>
<constant name="TrackerEndcapInnerMod1_y" value="TrackerEndcapInner_rmax1*cos(TrackerEndcapInnerModOpeningAngle/2.0) - TrackerEndcapInner_rmin1"/>
<constant name="TrackerEndcapOuterModOpeningAngle" value="30.0*degree"/>
<constant name="TrackerEndcapOuterMod1_x1" value="2.0*TrackerEndcapOuter_rmin1*sin(TrackerEndcapOuterModOpeningAngle/2.0)"/>
<constant name="TrackerEndcapOuterMod1_x2" value="2.0*TrackerEndcapOuter_rmax1*sin(TrackerEndcapOuterModOpeningAngle/2.0)"/>
<constant name="TrackerEndcapOuterMod1_y" value="TrackerEndcapOuter_rmax1*cos(TrackerEndcapOuterModOpeningAngle/2.0) - TrackerEndcapOuter_rmin1"/>
<constant name="TrackerEndcapOuterMod2_x1" value="2.0*TrackerEndcapOuter_rmin2*sin(TrackerEndcapOuterModOpeningAngle/2.0)"/>
<constant name="TrackerEndcapOuterMod2_x2" value="2.0*TrackerEndcapOuter_rmax2*sin(TrackerEndcapOuterModOpeningAngle/2.0)"/>
<constant name="TrackerEndcapOuterMod2_y" value="TrackerEndcapOuter_rmax2*cos(TrackerEndcapOuterModOpeningAngle/2.0) - TrackerEndcapOuter_rmin2"/>
<constant name="TrackerEndcapOuterMod3_x1" value="2.0*TrackerEndcapOuter_rmin3*sin(TrackerEndcapOuterModOpeningAngle/2.0)"/>
<constant name="TrackerEndcapOuterMod3_x2" value="2.0*TrackerEndcapOuter_rmax3*sin(TrackerEndcapOuterModOpeningAngle/2.0)"/>
<constant name="TrackerEndcapOuterMod3_y" value="TrackerEndcapOuter_rmax3*cos(TrackerEndcapOuterModOpeningAngle/2.0) - TrackerEndcapOuter_rmin3"/>
</define>
<display>
</display>
<detectors>
id="TrackerBarrel_Inner_ID"
name="TrackerBarrel_Inner"
type="athena_TrackerBarrel"
readout="TrackerBarrelHits"
insideTrackingVolume="true">
<dimensions
rmin="TrackerBarrelInner_rmin1-TrackerBarrelLayer_rOffset"
rmax="TrackerBarrelInner_rmin2-TrackerBarrelLayer_rOffset + TrackerBarrelInner_thickness"
length="TrackerBarrelInner_length"/>
<comment>
Tracker Barrel Modules
</comment>
<module name="TrackerBarrelInner_Module1" vis="TrackerModuleVis">
<frame material="CarbonFiber" vis="TrackerSupportVis"
width="TrackerBarrelSpaceFrame_width"
height="TrackerBarrelSpaceFrame_height"
length="TrackerBarrelInner_length1"
<module_component name="aluminum1" material="Aluminum" sensitive="false"
width="TrackerBarrelSpaceFrame_width" length="TrackerBarrelInner_length1-4*mm" thickness="0.4*mm" />
<module_component name="silicon"
width="TrackerBarrelSpaceFrame_width"
length="TrackerBarrelInner_length1-5*mm" thickness="TrackerSensor_thickness" material="Silicon" sensitive="true">
<!--position z="-0.025*mm" y="0*mm"/-->
<module name="TrackerBarrelInner_Module2" vis="TrackerModuleVis">
<frame material="CarbonFiber" vis="TrackerSupportVis"
width="TrackerBarrelSpaceFrame_width"
height="TrackerBarrelSpaceFrame_height"
length="TrackerBarrelInner_length2"
<module_component name="aluminum1" material="Aluminum" sensitive="false"
width="TrackerBarrelSpaceFrame_width" length="TrackerBarrelInner_length2-4*mm" thickness="0.4*mm" />
<module_component name="silicon"
width="TrackerBarrelSpaceFrame_width"
length="TrackerBarrelInner_length2-5*mm" thickness="TrackerSensor_thickness" material="Silicon" sensitive="true">
<!--position z="-0.025*mm" y="0*mm"/-->
</module_component>
</module>
<comment>
Tracker Barrel Inner Layers
</comment>
<layer module="TrackerBarrelInner_Module1" id="1" vis="TrackerLayerVis">
inner_r="TrackerBarrelInner_rmin1-TrackerBarrelLayer_rOffset"
outer_r="TrackerBarrelInner_rmin1-TrackerBarrelLayer_rOffset + TrackerBarrelInner_thickness-1.0*mm"
z_length="TrackerBarrelInner_length1"/>
<rphi_layout phi_tilt="TrackerBarrel_StaveTiltAngle" nphi="TrackerBarrelInner_NModules1" phi0="0.0" rc="TrackerBarrelInner_rmin1" dr="0.0 * mm"/>
<z_layout dr="0.0 * mm" z0="0.0 * mm" nz="1"/>
</layer>
<layer module="TrackerBarrelInner_Module2" id="2" vis="TrackerLayerVis">
inner_r="TrackerBarrelInner_rmin2-TrackerBarrelLayer_rOffset"
outer_r="TrackerBarrelInner_rmin2-TrackerBarrelLayer_rOffset + TrackerBarrelInner_thickness"
z_length="TrackerBarrelInner_length2"/>
<rphi_layout phi_tilt="TrackerBarrel_StaveTiltAngle" nphi="TrackerBarrelInner_NModules2" phi0="0.0" rc="TrackerBarrelInner_rmin2" dr="0.0 * mm"/>
<z_layout dr="0.0 * mm" z0="0.0 * mm" nz="1"/>
</layer>
</detector>
<detector
id="TrackerEndcapP_Inner_ID"
name="TrackerEndcapP_Inner"
type="athena_TrapEndcapTracker"
<support material="CarbonFiber" name="sup_cylinder" vis="TrackerSupportVis">
<shape type="Cone"
rmin1="TrackerEndcapInner_rmax1-14.0*cm" rmax1="TrackerEndcapInner_rmax1-14.0*cm+0.2*mm"
rmin2="TrackerEndcapInner_rmax1" rmax2="TrackerEndcapInner_rmax1+0.2*mm" z="8*cm"/>
<position x="0*cm" y="0*cm" z="TrackerEndcapInner_zmin-10.0*cm"/>
</support>
<module name="Module1" vis="AnlProcess_Blue">
<trd x1="TrackerEndcapInnerMod1_x1/2.0" x2="TrackerEndcapInnerMod1_x2/2.0" z="TrackerEndcapInnerMod1_y/2"/>
<module_component thickness="ITS3Thickness" material="Silicon" sensitive="true"/>
<module_component thickness="TrackerEndcapAluminum_thickness" material="Aluminum"/>
<module_component thickness="TrackerCarbon_thickness" material="CarbonFiber"/>
rmax="TrackerEndcapInner_rmax1"
r="TrackerEndcapInner_rmin1+TrackerEndcapInnerMod1_y/2.0"
nmodules="TrackerEndcap_NModules" dz="TrackerEndcapModule_dz" module="Module1" />
</layer>
</detector>
<detector
id="TrackerEndcapN_Inner_ID"
name="TrackerEndcapN_Inner"
type="athena_TrapEndcapTracker"
<support material="CarbonFiber" name="sup_cylinder" vis="TrackerSupportVis">
<shape type="Cone"
rmin2="TrackerEndcapInner_rmax1-14.0*cm" rmax2="TrackerEndcapInner_rmax1-14.0*cm+0.2*mm"
rmin1="TrackerEndcapInner_rmax1-1.0*cm" rmax1="TrackerEndcapInner_rmax1-1.0*cm+0.2*mm" z="8*cm"/>
<position x="0*cm" y="0*cm" z="-1.0*(TrackerEndcapInner_zmin-10.0*cm)"/>
</support>
<module name="Module1" vis="AnlProcess_Blue">
<trd x1="TrackerEndcapInnerMod1_x1/2.0" x2="TrackerEndcapInnerMod1_x2/2.0" z="TrackerEndcapInnerMod1_y/2"/>
<module_component thickness="ITS3Thickness" material="Silicon" sensitive="true"/>
<module_component thickness="TrackerEndcapAluminum_thickness" material="Aluminum"/>
<module_component thickness="TrackerCarbon_thickness" material="CarbonFiber"/>
rmax="TrackerEndcapInner_rmax1"
r="TrackerEndcapInner_rmin1+TrackerEndcapInnerMod1_y/2.0"
nmodules="TrackerEndcap_NModules" dz="TrackerEndcapModule_dz" module="Module1" />
-----------------------------------
Outer Tracker Subassembly (group 2)
-----------------------------------
id="TrackerBarrel_Outer_ID"
name="TrackerBarrel_Outer"
type="athena_TrackerBarrel"
readout="TrackerBarrelHits"
insideTrackingVolume="true">
<dimensions
rmin="TrackerBarrelOuter_rmin1-TrackerBarrelLayer_rOffset"
rmax="TrackerBarrelOuter_rmin2-TrackerBarrelLayer_rOffset + TrackerBarrelOuter_thickness"
length="TrackerBarrelOuter_length"/>
<comment>
Tracker Barrel Modules
</comment>
<module name="TrackerBarrelOuter_Module1" vis="TrackerModuleVis">
<frame material="CarbonFiber" vis="TrackerSupportVis"
width="TrackerBarrelSpaceFrame_width"
height="TrackerBarrelSpaceFrame_height"
length="TrackerBarrelOuter_length1"
<module_component name="aluminum1" material="Aluminum" sensitive="false"
width="TrackerBarrelSpaceFrame_width" length="TrackerBarrelOuter_length1-0.1*mm" thickness="0.40*mm" />
<module_component name="silicon"
width="TrackerBarrelSpaceFrame_width"
length="TrackerBarrelOuter_length1-0.1*mm"
thickness="TrackerSensor_thickness" material="Silicon" sensitive="true">
<module name="TrackerBarrelOuter_Module2" vis="TrackerModuleVis">
<frame material="CarbonFiber" vis="TrackerSupportVis"
width="TrackerBarrelSpaceFrame_width"
height="TrackerBarrelSpaceFrame_height"
length="TrackerBarrelOuter_length2"
<module_component name="aluminum1" material="Aluminum" sensitive="false"
width="TrackerBarrelSpaceFrame_width" length="TrackerBarrelOuter_length2-0.1*mm" thickness="0.40*mm" />
<module_component name="silicon"
width="TrackerBarrelSpaceFrame_width"
length="TrackerBarrelOuter_length1-0.1*mm"
thickness="TrackerSensor_thickness" material="Silicon" sensitive="true">
<layer module="TrackerBarrelOuter_Module1" id="1" vis="TrackerLayerVis">
inner_r="TrackerBarrelOuter_rmin1-TrackerBarrelLayer_rOffset"
outer_r="TrackerBarrelOuter_rmin1-TrackerBarrelLayer_rOffset + TrackerBarrelOuter_thickness-1.0*mm"
<rphi_layout phi_tilt="TrackerBarrel_StaveTiltAngle" nphi="TrackerBarrelOuter_NModules1" phi0="0.0" rc="TrackerBarrelOuter_rmin1" dr="0.0 * mm"/>
<z_layout dr="0.0 * mm" z0="0.0 * mm" nz="1"/>
</layer>
<layer module="TrackerBarrelOuter_Module2" id="2" vis="TrackerLayerVis">
inner_r="TrackerBarrelOuter_rmin2-TrackerBarrelLayer_rOffset"
outer_r="TrackerBarrelOuter_rmin2-TrackerBarrelLayer_rOffset + TrackerBarrelOuter_thickness"
<rphi_layout phi_tilt="TrackerBarrel_StaveTiltAngle" nphi="TrackerBarrelOuter_NModules2" phi0="0.0" rc="TrackerBarrelOuter_rmin2" dr="0.0 * mm"/>
<z_layout dr="0.0 * mm" z0="0.0 * mm" nz="1"/>
</layer>
</detector>
<detector
id="TrackerEndcapP_Outer_ID"
name="TrackerEndcapP_Outer"
type="athena_TrapEndcapTracker"
<support vis="TrackerSupportVis" material="CarbonFiber"
thickness="2.0*mm" length="TrackerEndcapOuterShell_length" zstart="TrackerEndcapOuterShell_zmin" />
<module name="Module1" vis="AnlProcess_Blue">
<trd x1="TrackerEndcapOuterMod1_x1/2.0" x2="TrackerEndcapOuterMod1_x2/2.0" z="TrackerEndcapOuterMod1_y/2"/>
<module_component thickness="ITS3Thickness" material="Silicon" sensitive="true"/>
<module_component thickness="TrackerEndcapAluminum_thickness" material="Aluminum"/>
<module_component thickness="TrackerCarbon_thickness" material="CarbonFiber"/>
</module>
<module name="Module2" vis="AnlProcess_Blue">
<trd x1="TrackerEndcapOuterMod2_x1/2.0" x2="TrackerEndcapOuterMod2_x2/2.0" z="TrackerEndcapOuterMod2_y/2"/>
<module_component thickness="ITS3Thickness" material="Silicon" sensitive="true"/>
<module_component thickness="TrackerEndcapAluminum_thickness" material="Aluminum"/>
<module_component thickness="TrackerCarbon_thickness" material="CarbonFiber"/>
</module>
<module name="Module3" vis="AnlProcess_Blue">
<trd x1="TrackerEndcapOuterMod3_x1/2.0" x2="TrackerEndcapOuterMod3_x2/2.0" z="TrackerEndcapOuterMod3_y/2"/>
<module_component thickness="ITS3Thickness" material="Silicon" sensitive="true"/>
<module_component thickness="TrackerEndcapAluminum_thickness" material="Aluminum"/>
<module_component thickness="TrackerCarbon_thickness" material="CarbonFiber"/>
length="TrackerEndcapOuterLayer_thickness"
r="TrackerEndcapOuter_rmin1+TrackerEndcapOuterMod1_y/2.0"
nmodules="TrackerEndcap_NModules" dz="TrackerEndcapModule_dz" module="Module1" />
rmin="TrackerEndcapOuter_rmin2"
rmax="TrackerEndcapOuter_rmax2"
length="TrackerEndcapOuterLayer_thickness"
r="TrackerEndcapOuter_rmin2+TrackerEndcapOuterMod2_y/2.0"
zstart="0.0*mm"
nmodules="TrackerEndcap_NModules" dz="TrackerEndcapModule_dz" module="Module2" />
rmin="TrackerEndcapOuter_rmin3"
rmax="TrackerEndcapOuter_rmax3"
length="TrackerEndcapOuterLayer_thickness"
r="TrackerEndcapOuter_rmin3+TrackerEndcapOuterMod3_y/2.0"
zstart="0.0*mm"
nmodules="TrackerEndcap_NModules" dz="TrackerEndcapModule_dz" module="Module3" />
</layer>
</detector>
<detector
id="TrackerEndcapN_Outer_ID"
name="TrackerEndcapN_Outer"
type="athena_TrapEndcapTracker"
<support material="CarbonFiber" name="sup_cylinder" vis="TrackerSupportVis"
thickness="2.0*mm"
length="TrackerEndcapOuterShell_length"
zstart="TrackerEndcapOuterShell_zmin"/>
<module name="Module1" vis="AnlProcess_Blue">
<trd x1="TrackerEndcapOuterMod1_x1/2.0" x2="TrackerEndcapOuterMod1_x2/2.0" z="TrackerEndcapOuterMod1_y/2"/>
<module_component thickness="ITS3Thickness" material="Silicon" sensitive="true"/>
<module_component thickness="TrackerEndcapAluminum_thickness" material="Aluminum"/>
<module_component thickness="TrackerCarbon_thickness" material="CarbonFiber"/>
</module>
<module name="Module2" vis="AnlProcess_Blue">
<trd x1="TrackerEndcapOuterMod2_x1/2.0" x2="TrackerEndcapOuterMod2_x2/2.0" z="TrackerEndcapOuterMod2_y/2"/>
<module_component thickness="ITS3Thickness" material="Silicon" sensitive="true"/>
<module_component thickness="TrackerEndcapAluminum_thickness" material="Aluminum"/>
<module_component thickness="TrackerCarbon_thickness" material="CarbonFiber"/>
</module>
<module name="Module3" vis="AnlProcess_Blue">
<trd x1="TrackerEndcapOuterMod3_x1/2.0" x2="TrackerEndcapOuterMod3_x2/2.0" z="TrackerEndcapOuterMod3_y/2"/>
<module_component thickness="ITS3Thickness" material="Silicon" sensitive="true"/>
<module_component thickness="TrackerEndcapAluminum_thickness" material="Aluminum"/>
<module_component thickness="TrackerCarbon_thickness" material="CarbonFiber"/>
length="TrackerEndcapOuterLayer_thickness"
r="TrackerEndcapOuter_rmin1+TrackerEndcapOuterMod1_y/2.0"
nmodules="TrackerEndcap_NModules" dz="TrackerEndcapModule_dz" module="Module1" />
rmin="TrackerEndcapOuter_rmin2"
rmax="TrackerEndcapOuter_rmax2"
length="TrackerEndcapOuterLayer_thickness"
r="TrackerEndcapOuter_rmin2+TrackerEndcapOuterMod2_y/2.0"
zstart="0.0*mm"
nmodules="TrackerEndcap_NModules" dz="TrackerEndcapModule_dz" module="Module2" />
rmin="TrackerEndcapOuter_rmin3"
rmax="TrackerEndcapOuter_rmax3"
length="TrackerEndcapOuterLayer_thickness"
r="TrackerEndcapOuter_rmin3+TrackerEndcapOuterMod3_y/2.0"
zstart="0.0*mm"
nmodules="TrackerEndcap_NModules" dz="TrackerEndcapModule_dz" module="Module3" />
</detectors>
<readouts>
<readout name="TrackerBarrelHits">
<segmentation type="CartesianGridXY" grid_size_x="0.010*mm" grid_size_y="0.010*mm" />
<id>system:8,barrel:2,layer:4,module:12,sensor:2,x:32:-14,y:-18</id>
</readout>
<readout name="TrackerEndcapHits">
<segmentation type="CartesianGridXZ" grid_size_x="0.010*mm" grid_size_z="0.010*mm" />
<id>system:8,barrel:2,layer:4,module:12,sensor:2,x:32:-16,z:-16</id>
</readout>
</readouts>