<?xml version="1.0" encoding="UTF-8"?>
<lccdd>
<comment>
---------------
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.
Note: initial implementation with hard-coded values,
TODO: add parametrization
</comment>
<define>
<constant name="TrackerBarrelSpaceFrame_width" value="42.0*mm"/>
<constant name="TrackerBarrelSpaceFrame_height" value="sqrt(3.0)*42.0*mm/2.0"/>
<constant name="TrackerSensor_thickness" value="0.03*mm"/>
<constant name="TrackerBarrel_thickness" value="0.55/100*9.37*cm"/>
<constant name="TrackerBarrelService_thickness" value="TrackerBarrel_thickness-TrackerSensor_thickness"/>
<comment>
Layer_rOffset is used to add inside space so the _rmin value is the nominal sensor radius.
</comment>
<constant name="TrackerBarrelLayer_rOffset" value="0.5*cm"/>
<constant name="TrackerBarrelInner_rmin1" value="21.0*cm"/>
<constant name="TrackerBarrelInner_rmin2" value="TrackerBarrelInner_rmin1 + TrackerBarrelSpaceFrame_width"/>
<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="TrackerBarrelOuter_rmin1 + TrackerBarrelSpaceFrame_width"/>
<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"/>
<constant name="TrackerBarrelOuter_length" value="TrackerBarrelOuter_length2"/>
<comment>
Here we are assuming the two endcaps (P and N) are symmetric.
</comment>
<constant name="TrackerEndcap_thickness" value="0.25/100*9.37*cm"/>
<constant name="TrackerEndcapService_thickness" value="TrackerEndcap_thickness-TrackerSensor_thickness"/>
<constant name="TrackerEndcapLayer_length" value="5.0*cm"/>
<constant name="TrackerEndcapInner_nLayers" value="2"/>
<constant name="TrackerEndcapOuter_nLayers" value="3"/>
<constant name="TrackerEndcapInner_zmin" value="TrackerBarrelInner_length/2.0"/>
<constant name="TrackerEndcapInner_zmax" value="TrackerEndcapInner_zmin + 2.0*TrackerEndcapLayer_length "/>
<constant name="TrackerEndcapInner_length" value="TrackerEndcapInner_zmax- TrackerEndcapInner_zmin"/>
<constant name="TrackerEndcapInnerLayer_dz" value="TrackerEndcapInner_length/TrackerEndcapInner_nLayers"/>
<constant name="TrackerEndcapOuter_zmin" value="TrackerBarrelOuter_length/2.0"/>
<constant name="TrackerEndcapOuter_zmax" value="CentralTracking_length/2.0"/>
<constant name="TrackerEndcapOuter_length" value="TrackerEndcapOuter_zmax- TrackerEndcapOuter_zmin"/>
<constant name="TrackerEndcapOuterLayer_dz" value="TrackerEndcapOuter_length/TrackerEndcapOuter_nLayers"/>
<constant name="TrackerEndcapInner_rmin1" value="Beampipe_rmax+1.0*cm"/>
<constant name="TrackerEndcapInner_rmin2" value="Beampipe_rmax+1.0*cm"/>
<constant name="TrackerEndcapOuter_rmin" value="3.18*cm"/>
<constant name="TrackerEndcapInner_rmax1" value="18.5*cm"/>
<constant name="TrackerEndcapInner_rmax2" value="18.5*cm + TrackerBarrelInner_thickness"/>
<constant name="TrackerEndcapOuter_rmax" value="43.23*cm"/>
<comment> TODO: These should be computed </comment>
<constant name="TrackerBarrelInner_NModules" value="30"/>
<constant name="TrackerBarrelOuter_NModules" value="56"/>
</define>
<display>
</display>
<detectors>
<comment>
-----------------------------------
Inner Tracker Subassembly (group 1)
-----------------------------------
Note: Endcap trackers are using SimpleDiskTracker construction.
This should be changed to something more detailed in the future.
</comment>
<detector id="TrackerSubAssemblyLayer1_ID"
name="TrackerSubAssemblyLayer1"
type="DD4hep_SubdetectorAssembly"
vis="TrackerSubAssemblyVis">
<composite name="TrackerEndcapN_Layer1"/>
<composite name="TrackerEndcapP_Layer1"/>
<composite name="TrackerBarrel_Layer1"/>
</detector>
<detector
id="TrackerBarrel_Layer1_ID"
name="TrackerBarrel_Layer1"
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="PurpleVis">
<frame
width="TrackerBarrelSpaceFrame_width"
height="TrackerBarrelSpaceFrame_height"
length="TrackerBarrelInner_length1"
thickness="0.1*mm" material="CarbonFiber_25percent" vis="BlueGreenVis" />
<module_component name="silicon"
width="TrackerBarrelSpaceFrame_width"
length="TrackerBarrelInner_length1-0.1*mm" thickness="0.05*mm" 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="VertexVis">
<barrel_envelope
inner_r="TrackerBarrelInner_rmin1-TrackerBarrelLayer_rOffset"
outer_r="TrackerBarrelInner_rmin1-TrackerBarrelLayer_rOffset + TrackerBarrelInner_thickness"
z_length="TrackerBarrelInner_length1"/>
<rphi_layout phi_tilt="10.0*degree" nphi="TrackerBarrelInner_NModules" 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_Module1" id="2" vis="VertexVis">
<barrel_envelope
inner_r="TrackerBarrelInner_rmin2-TrackerBarrelLayer_rOffset"
outer_r="TrackerBarrelInner_rmin2-TrackerBarrelLayer_rOffset + TrackerBarrelInner_thickness"
z_length="TrackerBarrelInner_length2"/>
<rphi_layout phi_tilt="10.0*degree" nphi="TrackerBarrelInner_NModules" 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_Layer1_ID"
name="TrackerEndcapP_Layer1"
type="athena_SimpleDiskTracker"
insideTrackingVolume="true"
reflect="false" vis="AnlRed">
<position x="0" y="0" z="0"/>
<layer id="1" vis="AnlOrange"
inner_z="TrackerEndcapInner_zmin + 0*TrackerEndcapInnerLayer_dz"
inner_r="TrackerEndcapInner_rmin1"
outer_r="TrackerEndcapInner_rmax1">
<slice material="Silicon" thickness="0.5*mm" vis="AnlOrange" />
</layer>
<layer id="2" vis="AnlOrange"
inner_z="TrackerEndcapInner_zmin + 1*TrackerEndcapInnerLayer_dz"
inner_r="TrackerEndcapInner_rmin2"
outer_r="TrackerEndcapInner_rmax2">
<slice material="Silicon" thickness="0.5*mm" vis="AnlOrange" />
</layer>
</detector>
<detector id="TrackerEndcapN_Layer1_ID"
name="TrackerEndcapN_Layer1"
type="athena_SimpleDiskTracker"
insideTrackingVolume="true"
reflect="true" vis="AnlRed">
<position x="0" y="0" z="0"/>
<layer id="1" vis="AnlOrange"
inner_z="TrackerEndcapInner_zmin + 0*TrackerEndcapInnerLayer_dz"
inner_r="TrackerEndcapInner_rmin1"
outer_r="TrackerEndcapInner_rmax1">
<slice material="Silicon" thickness="0.5*mm" vis="AnlOrange" />
</layer>
<layer id="2" vis="AnlOrange"
inner_z="TrackerEndcapInner_zmin + 1*TrackerEndcapInnerLayer_dz"
inner_r="TrackerEndcapInner_rmin2"
outer_r="TrackerEndcapInner_rmax2">
<slice material="Silicon" thickness="0.5*mm" vis="AnlOrange" />
</layer>
</detector>
<comment>
-----------------------------------
Outer Tracker Subassembly (group 2)
-----------------------------------
</comment>
<detector id="TrackerSubAssemblyLayer2_ID"
name="TrackerSubAssemblyLayer2"
type="DD4hep_SubdetectorAssembly"
vis="TrackerSubAssemblyVis">
<composite name="TrackerEndcapN_Layer2"/>
<composite name="TrackerEndcapP_Layer2"/>
<composite name="TrackerBarrel_Layer2"/>
</detector>
<detector
id="TrackerBarrel_Layer2_ID"
name="TrackerBarrel_Layer2"
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="PurpleVis">
<frame
width="TrackerBarrelSpaceFrame_width"
height="TrackerBarrelSpaceFrame_height"
length="TrackerBarrelOuter_length1"
thickness="0.1*mm" material="CarbonFiber_25percent" vis="BlueGreenVis" />
<module_component name="silicon"
width="TrackerBarrelSpaceFrame_width"
length="TrackerBarrelOuter_length1-0.1*mm"
thickness="0.05*mm" material="Silicon" sensitive="true">
<position z="-0.025*mm" y="0*mm"/>
</module_component>
</module>
<comment>
Tracker Barrel Inner Layers
</comment>
<layer module="TrackerBarrelOuter_Module1" id="1" vis="VertexVis">
<barrel_envelope
inner_r="TrackerBarrelOuter_rmin1-TrackerBarrelLayer_rOffset"
outer_r="TrackerBarrelOuter_rmin1-TrackerBarrelLayer_rOffset + TrackerBarrelOuter_thickness"
z_length="TrackerBarrelOuter_length"/>
<rphi_layout phi_tilt="10.0*degree" nphi="TrackerBarrelOuter_NModules" 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_Module1" id="2" vis="VertexVis">
<barrel_envelope
inner_r="TrackerBarrelOuter_rmin2-TrackerBarrelLayer_rOffset"
outer_r="TrackerBarrelOuter_rmin2-TrackerBarrelLayer_rOffset + TrackerBarrelOuter_thickness"
z_length="TrackerBarrelOuter_length"/>
<rphi_layout phi_tilt="10.0*degree" nphi="TrackerBarrelOuter_NModules" 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_Layer2_ID"
name="TrackerEndcapP_Layer2"
type="athena_SimpleDiskTracker"
insideTrackingVolume="true"
reflect="false" vis="AnlRed">
<position x="0" y="0" z="0"/>
<layer id="1" vis="AnlOrange"
inner_z="TrackerEndcapOuter_zmin + 0*TrackerEndcapOuterLayer_dz"
inner_r="TrackerEndcapOuter_rmin"
outer_r="TrackerEndcapOuter_rmax">
<slice material="Silicon" thickness="0.5*mm" vis="AnlOrange" />
</layer>
<layer id="2" vis="AnlOrange"
inner_z="TrackerEndcapOuter_zmin + 1*TrackerEndcapOuterLayer_dz"
inner_r="TrackerEndcapOuter_rmin"
outer_r="TrackerEndcapOuter_rmax">
<slice material="Silicon" thickness="0.5*mm" vis="AnlOrange" />
</layer>
<layer id="3" vis="AnlOrange"
inner_z="TrackerEndcapOuter_zmin + 2*TrackerEndcapOuterLayer_dz"
inner_r="TrackerEndcapOuter_rmin"
outer_r="TrackerEndcapOuter_rmax">
<slice material="Silicon" thickness="0.5*mm" vis="AnlOrange" />
</layer>
</detector>
<detector id="TrackerEndcapN_Layer2_ID"
name="TrackerEndcapN_Layer2"
type="athena_SimpleDiskTracker"
insideTrackingVolume="true"
reflect="true" vis="AnlRed">
<position x="0" y="0" z="0"/>
<layer id="1" vis="AnlOrange"
inner_z="TrackerEndcapOuter_zmin + 0*TrackerEndcapOuterLayer_dz"
inner_r="TrackerEndcapOuter_rmin"
outer_r="TrackerEndcapOuter_rmax">
<slice material="Silicon" thickness="0.5*mm" vis="AnlOrange" />
</layer>
<layer id="2" vis="AnlOrange"
inner_z="TrackerEndcapOuter_zmin + 1*TrackerEndcapOuterLayer_dz"
inner_r="TrackerEndcapOuter_rmin"
outer_r="TrackerEndcapOuter_rmax">
<slice material="Silicon" thickness="0.5*mm" vis="AnlOrange" />
</layer>
<layer id="3" vis="AnlOrange"
inner_z="TrackerEndcapOuter_zmin + 2*TrackerEndcapOuterLayer_dz"
inner_r="TrackerEndcapOuter_rmin"
outer_r="TrackerEndcapOuter_rmax">
<slice material="Silicon" thickness="0.5*mm" vis="AnlOrange" />
</layer>
</detector>
</detectors>
<readouts>
<readout name="TrackerBarrelHits">
<segmentation type="CartesianGridXY" grid_size_x="0.150*mm" grid_size_y="0.150*mm" />
<id>system:8,barrel:2,layer:4,module:12,sensor:2,x:32:-16,y:-16</id>
</readout>
<readout name="TrackerEndcapHits">
<segmentation type="CartesianGridXY" grid_size_x="0.20*mm" grid_size_y="0.20*mm" />
<id>system:8,barrel:2,layer:4,module:12,sensor:2,x:32:-16,y:-16</id>
</readout>
</readouts>
</lccdd>