det.xml

<?xml version="1.0" encoding="UTF-8"?>
<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">

  <info name="DriftChamber"
    title="Test with Drift Chamber"
    author="Tao Lin"
    url="http://github.com/cepc/CEPCSW"
    status="development"
    version="v0">
    <comment>Test with Drift Chamber</comment>
  </info>

  <includes>
    <gdmlFile  ref="elements.xml"/>
    <gdmlFile  ref="materials.xml"/>
  </includes>


  <define>
    <constant name="world_size" value="30*m"/>
    <constant name="world_x" value="world_size"/>
    <constant name="world_y" value="world_size"/>
    <constant name="world_z" value="world_size"/>

    <!-- SDT -->
    <constant name="DetID_DC"  value="7"/>
    <constant name="SDT_radius_min" value="234*mm"/>
    <constant name="SDT_radius_max" value="1720*mm"/>
    <constant name="SDT_half_length" value="2225*mm"/>
    <constant name="SDT_length" value="SDT_half_length*2"/>

    <constant name="SDT_inner_chamber_radius_min" value="235*mm"/>
    <constant name="SDT_inner_chamber_radius_max" value="906*mm"/>
    <constant name="SDT_inner_chamber_length" value="SDT_length"/>

    <constant name="SDT_outer_chamber_radius_min" value="1085*mm"/>
    <constant name="SDT_outer_chamber_radius_max" value="1715*mm"/>
    <constant name="SDT_outer_chamber_length" value="SDT_length"/>

    <constant name="SDT_inner_chamber_layer_number" value="67"/>
    <constant name="SDT_outer_chamber_layer_number" value="63"/>
    <constant name="SDT_chamber_layer_width" value="10*mm"/>
    <constant name="Epsilon" value="0*deg"/>

    <constant name="SDT_inner_chamber_inner_wall_radius_min" value="234.8*mm"/>
    <constant name="SDT_inner_chamber_inner_wall_radius_max" value="235*mm"/>
    <constant name="SDT_inner_chamber_outer_wall_radius_min" value="906*mm"/>
    <constant name="SDT_inner_chamber_outer_wall_radius_max" value="908.8*mm"/>
    <constant name="SDT_outer_chamber_inner_wall_radius_min" value="1084.8*mm"/>
    <constant name="SDT_outer_chamber_inner_wall_radius_max" value="1085*mm"/>
    <constant name="SDT_outer_chamber_outer_wall_radius_min" value="1715*mm"/>
    <constant name="SDT_outer_chamber_outer_wall_radius_max" value="1717.8*mm"/>

  </define>

  <display>
    <vis name="Invisible" showDaughters="false" visible="false"/>
    <vis name="InvisibleWithChildren" showDaughters="true" visible="false"/>
    <vis name="VisibleRed"  r="1.0" g="0.0" b="0.0" showDaughters="true" visible="true"/>
    <vis name="VisibleBlue" r="0.0" g="0.0" b="1.0" showDaughters="true" visible="true"/>
    <vis name="VisibleGreen" alpha="1.0" r="0.0" g="1.0" b="0.0" drawingStyle="solid" lineStyle="solid" showDaughters="true" visible="true"/>
  </display>

  <regions>
    <region name="DriftChamberRegion">
    </region>
  </regions>

  <detectors>
    <detector id="7" name="DriftChamber" type="DriftChamber" readout="DriftChamberHitsCollection" vis="VisibleBlue" sensitive="true" region="DriftChamberRegion">
      <envelope vis="SeeThrough">
        <shape type="BooleanShape" operation="Union" material="Air">
          <shape type="Tube" rmin="SDT_radius_min" rmax="909*mm" dz="SDT_half_length" />
          <shape type="Tube" rmin="1084.8*mm" rmax="SDT_radius_max" dz="SDT_half_length" />
        </shape>
      </envelope>

      <module id="0" name="SignalWire" type="Tube" rmin="0*mm" rmax="0.01*mm" vis="VisibleRed">
          <tubs name="W" type="Tube" rmin="0*mm" rmax="0.007*mm" material="Tungsten"/>
          <tubs name="Au" type="Tube" rmin="0.007*mm" rmax="0.01*mm" material="Gold"/>
      </module>

      <module id="1" name="FieldWire" type="Tube" rmin="0*mm" rmax="0.02*mm" vis="VisibleGreen">
          <tubs name="Al" type="Tube" rmin="0*mm" rmax="0.017*mm" material="Aluminum"/>
          <tubs name="Ag" type="Tube" rmin="0.017*mm" rmax="0.02*mm" material="Silver"/>
      </module>

      <type_flags type="DetType_TRACKER + DetType_BARREL + DetType_GASEOUS + DetType_WIRE"/>
      <!-- Use cm as unit if you want to use Pandora for reconstruction -->
     <sensitive type="SimpleDriftChamber"/>
     </detector>
  </detectors>

  <readouts>
    <readout name="DriftChamberHitsCollection">
      <segmentation type="GridDriftChamber" cell_size="10*mm" epsilon0="Epsilon" detector_length="SDT_length" identifier_phi="cellID" />

      <id>system:8,chamber:1,layer:8,cellID:16</id>
    </readout>
  </readouts>

  <fields>

    <field name="MagnetFields_Constant" type="ConstantField" field="magnetic">
      <strength x="0" y="0" z="3.0*tesla"/>
    </field>

  </fields>

</lccdd>