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<?xml version="1.0" encoding="UTF-8"?>
<lccdd>
  <comment> 
    ---------------
    Silicon Tracker
    ---------------

    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
    <constant name="TrackerBarrelSpaceFrame_width"   value="40.0*mm"/>
    <constant name="TrackerBarrelSpaceFrame_height"  value="sqrt(3.0)*32.0*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="TrackerEndcapInner_nLayers"          value="1"/>
    <constant name="TrackerEndcapOuter_nLayers"          value="3"/>

    <constant name="TrackerEndcapInner_zmin"        value="TrackerBarrelInner_length/2.0"/>
    <constant name="TrackerEndcapInner_zmax"        value="TrackerBarrelOuter_length/2.0"/>
    <constant name="TrackerEndcapInner_length"        value="TrackerEndcapInner_zmax- TrackerEndcapInner_zmin"/>
    <constant name="TrackerEndcapInnerLayer_dz"        value="TrackerEndcapInner_length/TrackerEndcapInner_nLayers"/>
    <constant name="TrackerEndcapInnerLayer_thickness"        value="TrackerEndcapInnerLayer_dz - 0.5*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="TrackerEndcapOuter_zmin"        value="TrackerBarrelOuter_length/2.0"/>
    <constant name="TrackerEndcapOuter_zmax"        value="TrackerEndcapOuter_zmin + 70"/>
    <constant name="TrackerEndcapOuter_length"        value="TrackerEndcapOuter_zmax- TrackerEndcapOuter_zmin"/>
    <constant name="TrackerEndcapOuterLayer_dz"        value="TrackerEndcapOuter_length/TrackerEndcapOuter_nLayers"/>
    <constant name="TrackerEndcapOuterLayer_thickness"        value="TrackerEndcapOuterLayer_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"/>
    <constant name="TrackerEndcapOuter_rmin1" value="3.18*cm + 1.2*cm * 0"/>
    <constant name="TrackerEndcapOuter_rmin2" value="3.18*cm + 1.2*cm * 1"/>
    <constant name="TrackerEndcapOuter_rmin3" value="3.18*cm + 1.2*cm * 2"/>
    <constant name="TrackerEndcapInner_rmax1" value="TrackerBarrelOuter_rmin1-5.0*mm"/>
    <constant name="TrackerEndcapInner_rmax2" value="TrackerBarrelOuter_rmin1-5.0*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> TODO: These should be computed </comment>
    <constant name="TrackerBarrelInner_NModules" value="30"/>
    <constant name="TrackerBarrelOuter_NModules" value="56"/>
    <constant name="TrackerEndcapInnerModOpeningAngle" value="30.0*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"/>


    <!--
    <constant name="GEMTrackerEndcap_zmin"            value="BarrelTracking_length/2.0"/>
    <constant name="GEMTrackerEndcap_NLayers"         value="1"/>
    <constant name="GEMTrackerEndcapFoilOpeningAngle" value="30.1*degree"/>
    <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))"/>


      // Frame parameters accoring to Kondo's sbsCrossSection.pdf file),
    <constant name="GEMTrackerEndcapFrame_thickness"     value="18.0 * mm"/>
    <constant name="GEMTrackerEndcapFrameBotEdge_width"  value="30.0 * mm"/>
    <constant name="GEMTrackerEndcapFrameTopEdge_width"  value="30.0 * mm"/>
    <constant name="GEMTrackerEndcapFrameSideEdge_width" value=" 8.0 * mm"/>
    -->

  </define>

  <display>
  </display>

  <detectors>


    <!--
    <detector id="TrackerBarrelSubAssembly_Inner_ID"
      name="TrackerBarrelSubAssembly_Inner"
      type="DD4hep_SubdetectorAssembly"
      vis="TrackerSubAssemblyVis">
      <composite name="TrackerBarrel_Inner"/>
    </detector>
    <detector id="TrackerEndcapSubAssembly_Inner_ID"
      name="TrackerEndcapSubAssembly_Inner"
      type="DD4hep_SubdetectorAssembly"
      vis="TrackerSubAssemblyVis">
      <composite name="TrackerEndcapN_Inner"/>
      <composite name="TrackerEndcapP_Inner"/>
    </detector>
    <detector id="TrackerBarrelSubAssembly_Outer_ID"
      name="TrackerBarrelSubAssembly_Outer"
      type="DD4hep_SubdetectorAssembly"
      vis="TrackerSubAssemblyVis">
      <composite name="TrackerBarrel_Outer"/>
    </detector>
    <detector id="TrackerEndcapSubAssembly_Outer_ID"
      name="TrackerEndcapSubAssembly_Outer"
      type="DD4hep_SubdetectorAssembly"
      vis="TrackerSubAssemblyVis">
      <composite name="TrackerEndcapP_Outer"/>
      <composite name="TrackerEndcapN_Outer"/>
    </detector>
    -->
    <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>
      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="PurpleVis">
        <frame material="CarbonFiber_25percent" vis="BlueGreenVis" 
          width="TrackerBarrelSpaceFrame_width"  
          height="TrackerBarrelSpaceFrame_height" 
          length="TrackerBarrelInner_length1"
          thickness="0.1*mm" />
        <module_component name="peek1" material="PEEK" sensitive="false"
          width="TrackerBarrelSpaceFrame_width" length="TrackerBarrelInner_length1-4*mm" thickness="2.0*mm" />
        <module_component name="silicon" 
          width="TrackerBarrelSpaceFrame_width"
          length="TrackerBarrelInner_length1-5*mm" thickness="0.05*mm" material="Silicon" sensitive="true">
          <!--position z="-0.025*mm" y="0*mm"/-->
        </module_component>
        <module_component name="peek1" material="PEEK" sensitive="false"
          width="TrackerBarrelSpaceFrame_width" length="TrackerBarrelInner_length1-6*mm" thickness="2.0*mm" />
      <module name="TrackerBarrelInner_Module2" vis="PurpleVis">
        <frame material="CarbonFiber_25percent" vis="BlueGreenVis" 
          width="TrackerBarrelSpaceFrame_width"  
          height="TrackerBarrelSpaceFrame_height" 
          length="TrackerBarrelInner_length2"
          thickness="0.1*mm" />
        <module_component name="peek1" material="PEEK" sensitive="false"
          width="TrackerBarrelSpaceFrame_width" length="TrackerBarrelInner_length2-4*mm" thickness="2.0*mm" />
        <module_component name="silicon" 
          width="TrackerBarrelSpaceFrame_width"
          length="TrackerBarrelInner_length2-5*mm" thickness="0.05*mm" material="Silicon" sensitive="true">
          <!--position z="-0.025*mm" y="0*mm"/-->
        </module_component>
        <module_component name="peek1" material="PEEK" sensitive="false"
          width="TrackerBarrelSpaceFrame_width" length="TrackerBarrelInner_length2-6*mm" thickness="2.0*mm" />
      </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-1.0*mm"
          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_Module2" 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_Inner_ID"
      name="TrackerEndcapP_Inner"
      type="refdet_TrapEndcapTracker"
      readout="TrackerEndcapHits"
      vis="AnlRed"
      reflect="false">
      <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="0.25/100*9.37*cm-ITS3Thickness" material="Silicon"/>
      </module>
      <layer id="1">
        <envelope  vis="AnlRed"
          rmin="TrackerEndcapInner_rmin1"
          rmax="TrackerEndcapInner_rmax2"
          length="TrackerEndcapInnerLayer_dz"
          zstart="TrackerEndcapInner_zmin" />
        <ring vis="AnlRed"
          r="TrackerEndcapInner_rmin1+TrackerEndcapInnerMod1_y/2.0"
          zstart="(50.0*mm)"
          nmodules="12" dz="2.5 * mm" module="Module1" />
      </layer>
    </detector>

    <detector
      id="TrackerEndcapN_Inner_ID"
      name="TrackerEndcapN_Inner"
      type="refdet_TrapEndcapTracker"
      readout="TrackerEndcapHits"
      vis="AnlRed"
      reflect="true">
      <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="0.25/100*9.37*cm-ITS3Thickness" material="Silicon"/>
      </module>
      <layer id="1">
        <envelope  vis="AnlRed"
          rmin="TrackerEndcapInner_rmin1"
          rmax="TrackerEndcapInner_rmax2"
          length="TrackerEndcapInnerLayer_dz"
          zstart="TrackerEndcapInner_zmin" />
        <ring vis="AnlRed"
          r="TrackerEndcapInner_rmin1+TrackerEndcapInnerMod1_y/2.0" 
          zstart="-(50.0*mm)"
          nmodules="12" dz="2.5 * mm" module="Module1" />
      </layer>
    </detector>

    <!--
    <detector id="TrackerEndcapP_Inner_ID" 
      name="TrackerEndcapP_Inner" 
      type="athena_SimpleDiskTracker"
      readout="TrackerEndcapHits"
      insideTrackingVolume="true" 
      reflect="false" vis="AnlRed">
      <position x="0" y="0" z="0"/>
      <layer id="1" vis="AnlOrange"
        inner_z="TrackerEndcapInner_zmin + 0.5*TrackerEndcapInnerLayer_dz" 
        inner_r="TrackerEndcapInner_rmin1" 
        outer_r="TrackerEndcapInner_rmax1">
        <slice material="Air" thickness="1.0*mm" vis="AnlOrange" />
        <slice material="Silicon" thickness="0.5*mm" vis="AnlOrange" sensitive="true" />
        <slice material="Air" thickness="1.0*mm" vis="AnlOrange" />
      </layer>
      <layer id="2" vis="AnlOrange"
        inner_z="TrackerEndcapInner_zmin + 1.5*TrackerEndcapInnerLayer_dz" 
        inner_r="TrackerEndcapInner_rmin2" 
        outer_r="TrackerEndcapInner_rmax2">
        <slice material="Air" thickness="1.0*mm" vis="AnlOrange" />
        <slice material="Silicon" thickness="0.5*mm" vis="AnlOrange" sensitive="true" />
        <slice material="Air" thickness="1.0*mm" vis="AnlOrange" />
    <detector id="TrackerEndcapN_Inner_ID" 
      name="TrackerEndcapN_Inner" 
      type="athena_SimpleDiskTracker"
      readout="TrackerEndcapHits"
      insideTrackingVolume="true" 
      reflect="true" vis="AnlRed">
      <position x="0" y="0" z="-1.0e-6*mm"/>
      <layer id="1" vis="AnlOrange"
        inner_z="TrackerEndcapInner_zmin + 0.5*TrackerEndcapInnerLayer_dz" 
        inner_r="TrackerEndcapInner_rmin1" 
        outer_r="TrackerEndcapInner_rmax1">
        <slice material="Air" thickness="1.0*mm" vis="AnlOrange" />
        <slice material="Silicon" thickness="0.5*mm" vis="AnlOrange" sensitive="true" />
        <slice material="Air" thickness="1.0*mm" vis="AnlOrange" />
      </layer>
      <layer id="2" vis="AnlOrange"
        inner_z="TrackerEndcapInner_zmin + 1.5*TrackerEndcapInnerLayer_dz" 
        inner_r="TrackerEndcapInner_rmin2" 
        outer_r="TrackerEndcapInner_rmax2">
        <slice material="Air" thickness="1.0*mm" vis="AnlOrange" />
        <slice material="Silicon" thickness="0.5*mm" vis="AnlOrange" sensitive="true" />
        <slice material="Air" thickness="1.0*mm" vis="AnlOrange" />
      -----------------------------------
      Outer Tracker Subassembly (group 2)
      -----------------------------------
    </comment>
    <detector
      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="PurpleVis">
        <frame  material="CarbonFiber_25percent" vis="BlueGreenVis"
          width="TrackerBarrelSpaceFrame_width"  
          height="TrackerBarrelSpaceFrame_height" 
          length="TrackerBarrelOuter_length1"
          thickness="0.1*mm" />
        <module_component name="peek1" material="PEEK" sensitive="false"
          width="TrackerBarrelSpaceFrame_width" length="TrackerBarrelOuter_length1-0.1*mm" thickness="2.0*mm" />
        <module_component name="silicon" 
          width="TrackerBarrelSpaceFrame_width"
          length="TrackerBarrelOuter_length1-0.1*mm" 
          thickness="0.05*mm" material="Silicon" sensitive="true">
        </module_component>
        <module_component name="peek2" material="PEEK" sensitive="false"
          width="TrackerBarrelSpaceFrame_width" length="TrackerBarrelOuter_length1-0.1*mm" thickness="2.0*mm" />
      <module name="TrackerBarrelOuter_Module2" vis="PurpleVis">
        <frame  material="CarbonFiber_25percent" vis="BlueGreenVis"
          width="TrackerBarrelSpaceFrame_width"  
          height="TrackerBarrelSpaceFrame_height" 
          length="TrackerBarrelOuter_length2"
          thickness="0.1*mm" />
        <module_component name="peek1" material="PEEK" sensitive="false"
          width="TrackerBarrelSpaceFrame_width" length="TrackerBarrelOuter_length2-0.1*mm" thickness="2.0*mm" />
        <module_component name="silicon" 
          width="TrackerBarrelSpaceFrame_width"
          length="TrackerBarrelOuter_length1-0.1*mm" 
          thickness="0.05*mm" material="Silicon" sensitive="true">
        </module_component>
        <module_component name="peek2" material="PEEK" sensitive="false"
          width="TrackerBarrelSpaceFrame_width" length="TrackerBarrelOuter_length1-0.1*mm" thickness="2.0*mm" />
      </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-1.0*mm"
          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_Module2" 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_Outer_ID"
      name="TrackerEndcapP_Outer"
      type="refdet_TrapEndcapTracker"
      readout="TrackerEndcapHits"
      vis="AnlRed"
      reflect="false">
      <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="0.25/100*9.37*cm-ITS3Thickness" material="Silicon"/>
      </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="0.25/100*9.37*cm-ITS3Thickness" material="Silicon"/>
      </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="0.25/100*9.37*cm-ITS3Thickness" material="Silicon"/>
      </module>
      <layer id="1">
        <envelope  vis="AnlRed"
          rmin="TrackerEndcapOuter_rmin1"
          rmax="TrackerEndcapOuter_rmax1"
          length="TrackerEndcapOuterLayer_thickness"
          zstart="TrackerEndcapOuter_zmin" />
        <ring vis="AnlRed"
          r="TrackerEndcapOuter_rmin1+TrackerEndcapOuterMod1_y/2.0"
          zstart="0.0*mm"
          nmodules="12" dz="2.5 * mm" module="Module1" />
      </layer>
      <layer id="2">
        <envelope  vis="AnlRed"
          rmin="TrackerEndcapOuter_rmin2"
          rmax="TrackerEndcapOuter_rmax2"
          length="TrackerEndcapOuterLayer_thickness"
          zstart="TrackerEndcapOuter_zmin + TrackerEndcapOuterLayer_dz" />
        <ring vis="AnlRed"
          r="TrackerEndcapOuter_rmin2+TrackerEndcapOuterMod2_y/2.0"
          zstart="0.0*mm"
          nmodules="12" dz="2.5 * mm" module="Module2" />
      </layer>
      <layer id="3">
        <envelope  vis="AnlRed"
          rmin="TrackerEndcapOuter_rmin3"
          rmax="TrackerEndcapOuter_rmax3"
          length="TrackerEndcapOuterLayer_thickness"
          zstart="TrackerEndcapOuter_zmin + 2 * TrackerEndcapOuterLayer_dz" />
        <ring vis="AnlRed"
          r="TrackerEndcapOuter_rmin3+TrackerEndcapOuterMod3_y/2.0"
          zstart="0.0*mm"
          nmodules="12" dz="2.5 * mm" module="Module3" />
      </layer>
    </detector>

    <detector
      id="TrackerEndcapN_Outer_ID"
      name="TrackerEndcapN_Outer"
      type="refdet_TrapEndcapTracker"
      readout="TrackerEndcapHits"
      vis="AnlRed"
      reflect="true">
      <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="0.25/100*9.37*cm-ITS3Thickness" material="Silicon"/>
      </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="0.25/100*9.37*cm-ITS3Thickness" material="Silicon"/>
      </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="0.25/100*9.37*cm-ITS3Thickness" material="Silicon"/>
      </module>
      <layer id="1">
        <envelope  vis="AnlRed"
          rmin="TrackerEndcapOuter_rmin1 + 0 * 1.2*cm"
          rmax="TrackerEndcapOuter_rmax1"
          length="TrackerEndcapOuterLayer_thickness"
          zstart="TrackerEndcapOuter_zmin" />
        <ring vis="AnlRed"
          r="TrackerEndcapOuter_rmin1+TrackerEndcapOuterMod1_y/2.0"
          zstart="0.0*mm"
          nmodules="12" dz="2.5 * mm" module="Module1" />
      </layer>
      <layer id="2">
        <envelope  vis="AnlRed"
          rmin="TrackerEndcapOuter_rmin2"
          rmax="TrackerEndcapOuter_rmax2"
          length="TrackerEndcapOuterLayer_thickness"
          zstart="TrackerEndcapOuter_zmin + TrackerEndcapOuterLayer_dz" />
        <ring vis="AnlRed"
          r="TrackerEndcapOuter_rmin2+TrackerEndcapOuterMod2_y/2.0"
          zstart="0.0*mm"
          nmodules="12" dz="2.5 * mm" module="Module2" />
      </layer>
      <layer id="3">
        <envelope  vis="AnlRed"
          rmin="TrackerEndcapOuter_rmin3"
          rmax="TrackerEndcapOuter_rmax3"
          length="TrackerEndcapOuterLayer_thickness"
          zstart="TrackerEndcapOuter_zmin + 2 * TrackerEndcapOuterLayer_dz" />
        <ring vis="AnlRed"
          r="TrackerEndcapOuter_rmin3+TrackerEndcapOuterMod3_y/2.0"
          zstart="0.0*mm"
          nmodules="12" dz="2.5 * mm" module="Module3" />
      </layer>
    </detector>
    <!--
    <detector id="TrackerEndcapP_Outer_ID" 
      name="TrackerEndcapP_Outer" 
      type="athena_SimpleDiskTracker"
      insideTrackingVolume="true" 
      readout="TrackerEndcapHits"
      reflect="false" vis="AnlRed">
      <position x="0" y="0" z="0"/>
      <layer id="1" vis="AnlOrange"
        inner_z="TrackerEndcapOuter_zmin + 0.5*TrackerEndcapOuterLayer_dz" 
        inner_r="TrackerEndcapOuter_rmin" 
        outer_r="TrackerEndcapOuter_rmax">
        <slice material="Air" thickness="1.0*mm" vis="AnlOrange" />
        <slice material="Silicon" thickness="0.5*mm" vis="AnlOrange" sensitive="true" />
        <slice material="Air" thickness="1.0*mm" vis="AnlOrange" />
      </layer>
      <layer id="2" vis="AnlOrange"
        inner_z="TrackerEndcapOuter_zmin + 1.5*TrackerEndcapOuterLayer_dz" 
        inner_r="TrackerEndcapOuter_rmin" 
        outer_r="TrackerEndcapOuter_rmax">
        <slice material="Air" thickness="1.0*mm" vis="AnlOrange" />
        <slice material="Silicon" thickness="0.5*mm" vis="AnlOrange" sensitive="true" />
        <slice material="Air" thickness="1.0*mm" vis="AnlOrange" />
      </layer>
      <layer id="3" vis="AnlOrange"
        inner_z="TrackerEndcapOuter_zmin + 2.5*TrackerEndcapOuterLayer_dz" 
        inner_r="TrackerEndcapOuter_rmin" 
        outer_r="TrackerEndcapOuter_rmax">
        <slice material="Air" thickness="1.0*mm" vis="AnlOrange" />
        <slice material="Silicon" thickness="0.5*mm" vis="AnlOrange" sensitive="true" />
        <slice material="Air" thickness="1.0*mm" vis="AnlOrange" />
    <detector id="TrackerEndcapN_Outer_ID" 
      name="TrackerEndcapN_Outer" 
      type="athena_SimpleDiskTracker"
      insideTrackingVolume="true" 
      readout="TrackerEndcapHits"
      reflect="true" vis="AnlRed">
      <position x="0" y="0" z="-1.0e-6*mm"/>
      <layer id="1" vis="AnlOrange"
        inner_z="TrackerEndcapOuter_zmin + 0.5*TrackerEndcapOuterLayer_dz" 
        inner_r="TrackerEndcapOuter_rmin" 
        outer_r="TrackerEndcapOuter_rmax">
        <slice material="Air" thickness="1.0*mm" vis="AnlOrange" />
        <slice material="Silicon" thickness="0.5*mm" vis="AnlOrange" sensitive="true" />
        <slice material="Air" thickness="1.0*mm" vis="AnlOrange" />
      </layer>
      <layer id="2" vis="AnlOrange"
        inner_z="TrackerEndcapOuter_zmin + 1.5*TrackerEndcapOuterLayer_dz" 
        inner_r="TrackerEndcapOuter_rmin" 
        outer_r="TrackerEndcapOuter_rmax">
        <slice material="Air" thickness="1.0*mm" vis="AnlOrange" />
        <slice material="Silicon" thickness="0.5*mm" vis="AnlOrange" sensitive="true" />
        <slice material="Air" thickness="1.0*mm" vis="AnlOrange" />
      </layer>
      <layer id="3" vis="AnlOrange"
        inner_z="TrackerEndcapOuter_zmin + 2.5*TrackerEndcapOuterLayer_dz" 
        inner_r="TrackerEndcapOuter_rmin" 
        outer_r="TrackerEndcapOuter_rmax">
        <slice material="Air" thickness="1.0*mm" vis="AnlOrange" />
        <slice material="Silicon" thickness="0.5*mm" vis="AnlOrange" sensitive="true" />
        <slice material="Air" thickness="1.0*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>