<lccdd xmlns:compact="http://www.lcsim.org/schemas/compact/1.0" 
       xmlns:xs="http://www.w3.org/2001/XMLSchema" 
       xs:noNamespaceSchemaLocation="http://www.lcsim.org/schemas/compact/1.0/compact.xsd">
>

  <!-- Some information about detector  -->
  <info name="Central Ion GEM" title="Central Ion GEM"
        author="Marshall Scott"
        url="https://eicweb.phy.anl.gov/EIC/detectors/reference_detector.git"
        status="development"
        version="v1 2021-03-23">
    <comment>Central Ion GEM</comment>        
  </info>

  <!-- Use DD4hep elements and materials definitions -->
  <includes>
    <gdmlFile ref="elements.xml"/>
    <gdmlFile ref="materials.xml"/>
  </includes>

  <!-- Define the dimensions of the world volume -->
  <define>
    <constant name="ci_GEM_id"      value="1">
    <constant name="ci_GEM_rin"     value="10 * cm">
    <constant name="ci_GEM_rout"    value="95 * cm">
    <constant name="ci_GEM_sizez"   value="30 * cm">
    <constant name="ci_GEM_shiftz"  value="0 * cm">
    <constant name="ci_GEM_posz"    value="0 * cm">
    <constant name="ci_GEM_posx"    value="0 * cm">
    <constant name="ci_GEM_nlayers" value="8">
  </define>

   <limits>
  </limits>

  <regions>
  </regions>

  <!-- Common Generic visualization attributes -->
  <!-- change this -->
  <comment>Common Generic visualization attributes</comment>
  <display>
    <vis name="ci_GEMVis"  r= "0.8"  g="0.4"  b="0.3" alpha="0.8" showDaughters="true" visible="true"/>
  </display>

  <!-- Define detector -->
  <detectors>
    <comment>
      Central Ion GEM
    </comment>
    <detector id="ci_GEM_id" name="ci_GEM" type="ci_GEM" insideTrackingVolume="false" vis="ci_GEMVis">
	    <material name="Ar10CO2"/>  <!-- G4_Galactic -->	    
      <dimensions rmin="ci_GEM_rin" rmax="ci_GEM_rout" sizez="ci_GEM_sizez" delta="ci_GEM_shiftz"	z="ci_GEM_posz" x="ci_GEM_posx" nlayers="ci_GEM_nlayers"/>
      <layer id="0" z="-sizez * 0.5 + (5 + 3. * id) * cm" inner_r="rmin + (1. + 0.5 * id) * cm" outer_r="rmax + (-25. + 2. * id) * cm" dz="1 * cm" />
      <layer id="1" z="-sizez * 0.5 + (5 + 3. * id) * cm" inner_r="rmin + (1. + 0.5 * id) * cm" outer_r="rmax + (-25. + 2. * id) * cm" dz="1 * cm" />
      <layer id="2" z="-sizez * 0.5 + (5 + 3. * id) * cm" inner_r="rmin + (1. + 0.5 * id) * cm" outer_r="rmax + (-25. + 2. * id) * cm" dz="1 * cm" />
      <layer id="3" z="-sizez * 0.5 + (5 + 3. * id) * cm" inner_r="rmin + (1. + 0.5 * id) * cm" outer_r="rmax + (-25. + 2. * id) * cm" dz="1 * cm" />
      <layer id="4" z="-sizez * 0.5 + (5 + 3. * id) * cm" inner_r="rmin + (1. + 0.5 * id) * cm" outer_r="rmax + (-25. + 2. * id) * cm" dz="1 * cm" />
      <layer id="5" z="-sizez * 0.5 + (5 + 3. * id) * cm" inner_r="rmin + (1. + 0.5 * id) * cm" outer_r="rmax + (-25. + 2. * id) * cm" dz="1 * cm" />
      <layer id="6" z="-sizez * 0.5 + (5 + 3. * id) * cm" inner_r="rmin + (1. + 0.5 * id) * cm" outer_r="rmax + (-25. + 2. * id) * cm" dz="1 * cm" />
      <layer id="7" z="-sizez * 0.5 + (5 + 3. * id) * cm" inner_r="rmin + (1. + 0.5 * id) * cm" outer_r="rmax + (-25. + 2. * id) * cm" dz="1 * cm" />
    </detector>
  </detectors>

  <plugins>
  </plugins>