<lccdd>

  <define>
    <constant name="CrystalEndcap_rmin"  value="VertexTrackerBarrel_rmin"/>
    <constant name="CrystalEndcap_rmax"  value="EcalEndcapN_rmin"/>
    <constant name="CrystalBox_x_length" value="20.0*mm"/>
    <constant name="CrystalBox_y_length" value="20.0*mm"/>
    <constant name="CrystalBox_z_length" value="200.0*mm"/>
    <constant name="CrystalBox_offset"   value="0.000001*mm"/>
    <constant name="CrystalEndcap_x_pos" value="0.0*m"/>
    <constant name="CrystalEndcap_y_pos" value="0.0*m"/>
    <constant name="CrystalEndcap_z_pos" value="-EcalEndcapN_zmin"/>
  </define>


  <limits>
  </limits>

  <regions>
  </regions>

  <!-- Common Generic visualization attributes -->
  <comment>Common Generic visualization attributes</comment>
  <display>
  </display>

  <detectors>
    <comment>
      -------------------------------
      Backwards Endcap EM Calorimeter
      -------------------------------
      A layered EM calorimeter with tungsten and silicon (or scintillator) strips
    </comment>
    <detector id="ECalEndcapN_ID" 
      name="EcalEndcapN" 
      type="athena_PolyhedraEndcapCalorimeter2" 
      reflect="true" 
      readout="EcalEndcapHits" 
      vis="EcalEndcapVis" 
      calorimeterType="EM_ENDCAP">
      <position x="0" y="0" z="0"/>
      <dimensions 
        numsides="CaloSides" 
        zmin="EcalEndcapN_zmin" 
        rmin="EcalEndcapN_rmin" 
        rmax="TrackerBarrel_rmax" />
      <layer repeat="EcalEndcapNLayer1_NRepeat">
        <slice material="Silicon" thickness="EcalSiliconThickness" sensitive="yes" limits="cal_limits"/>
        <slice material="Copper" thickness="EcalCopperThickness"/>
        <slice material="Kapton" thickness="EcalKaptonThickness"/>
        <slice material="Air" thickness="EcalAir1Thickness"/>
      </layer>
      <layer repeat="EcalEndcapNLayer2_NRepeat">
        <slice material="TungstenDens24" thickness="EcalThinTungstenThickness"/>
        <slice material="Air" thickness="EcalAir2Thickness"/>
        <slice material="Silicon" thickness="EcalSiliconThickness" sensitive="yes" limits="cal_limits"/>
        <slice material="Copper" thickness="EcalCopperThickness"/>
        <slice material="Kapton" thickness="EcalKaptonThickness"/>
        <slice material="Air" thickness="EcalAir1Thickness"/>
      </layer>
      <layer repeat="EcalEndcapNLayer3_NRepeat">
        <slice material="TungstenDens24" thickness="EcalThickTungstenThickness"/>
        <slice material="Air" thickness="EcalAir2Thickness"/>
        <slice material="Silicon" thickness="EcalSiliconThickness" sensitive="yes" limits="cal_limits"/>
        <slice material="Copper" thickness="EcalCopperThickness"/>
        <slice material="Kapton" thickness="EcalKaptonThickness"/>
        <slice material="Air" thickness="EcalAir1Thickness"/>
      </layer>
    </detector>

    <comment>
      -------------------
      Crystal Calorimeter
      -------------------
      Backward (negative pseudorapidity) angle electron detector
    </comment>
    <detector 
      id="CrystalEndcap_ID" 
      name="ElectronECAL" 
      type="CrystalCalorimeterEndcap" 
      readout="CrystalEcalHits" 
      vis="GreenVis">
      <position x="CrystalEndcap_x_pos" y="CrystalEndcap_y_pos" z="CrystalEndcap_z_pos" />
      <dimensions rmin="CrystalEndcap_rmin" rmax="CrystalEndcap_rmax" x="CrystalBox_x_length" y="CrystalBox_y_length" z="CrystalBox_z_length" delta="CrystalBox_offset"/>
    </detector>
  </detectors>

  <!--  Definition of the readout segmentation/definition  -->
  <readouts>
    <!--  
    <readout name="PlaneTrackerHits">
      <segmentation type="CartesianGridXY" grid_size_x="20.0*mm" grid_size_y="20.0*mm" />
      <id>system:5,module:4,x:32:-16,y:-16</id>
    </readout>
    -->
    <readout name="CrystalEcalHits">
      <segmentation type="CartesianGridXY" grid_size_x="CrystalBox_x_length" grid_size_y="CrystalBox_y_length" />
      <id>system:8,sector:4,module:20,x:48:-8,y:-8</id>
    </readout>
    <readout name="EcalEndcapNHits">
      <segmentation type="CartesianGridXY" grid_size_x="3.5 * mm" grid_size_y="3.5 * mm"/>
      <id>system:8,barrel:3,module:4,layer:6,slice:5,x:32:-16,y:-16</id>
    </readout>
  </readouts>

  <plugins>
  </plugins>

</lccdd>