T0Counter_v21a.gdml

<?xml version="1.0" encoding="UTF-8" standalone="no" ?>
<gdml xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="http://service-spi.web.cern.ch/service-spi/app/releases/GDML/schema/gdml.xsd">

<define>
<constant name="shift" value="-500"/>

<position name="origin" unit="mm" x="0" y="0" z="shift" />
<position name="up_cr" unit="mm" x="0.0" y="0.0" z="shift-0.040025" />
<position name="down_cr" unit="mm" x="0.0" y="0.0" z="shift+0.040025" />
<position name="up_au" unit="mm" x="0.0" y="0.0" z="shift-0.040125" />
<position name="down_au" unit="mm" x="0.0" y="0.0" z="shift+0.040125" />
</define>

<materials>

<element name="videRef"    formula="VACUUM" Z="1"> <atom value="1."/>       </element>
<element name="carbon"     formula="C"   Z="6">    <atom value="12.0107"/>  </element>
<element name="chromium"   formula="Cr"  Z="24">   <atom value="51.9961"/>  </element>
<element name="gold"       formula="Au"  Z="79">   <atom value="196.97"/>   </element>

<material formula=" " name="Vacuum">
<D value="1.e-25" unit="g/cm3" />
<fraction n="1.0" ref="videRef" />
</material>

<material name="Gold" state="solid">
<D value="19.32" unit="g/cm3"/>
<fraction n="1." ref="gold"/>
</material>

<material name="Chromium" state="solid">
<D value="7.19" unit="g/cm3"/>
<fraction n="1." ref="chromium"/>
</material>

<material name="Diamond" state="solid">
<D value="3.51" unit="g/cm3"/>
<fraction n="1." ref="carbon"/>
</material>

</materials>

<solids>
<box lunit="m" name="T0Counter" x="0.01" y="0.01" z="0.0000804" />
<box lunit="m" name="Au_layer" x="0.01" y="0.01" z="0.000000150" />
<box lunit="m" name="Cr_layer" x="0.01" y="0.01" z="0.000000050" />
<box lunit="m" name="Diamond_layer" x="0.01" y="0.01" z="0.000080" /> 
</solids>

<structure>

<volume name="vol_Au">
<solidref ref="Au_layer" />
<materialref ref="Gold" />
</volume>	

<volume name="vol_Cr">
<solidref ref="Cr_layer" />
<materialref ref="Chromium" />
</volume>	

<volume name="vol_Diamond">
<solidref ref="Diamond_layer" />
<materialref ref="Diamond" />
</volume>	

<volume name="detector" >
<materialref ref="Vacuum" />
<solidref ref="T0Counter" />
<positionref ref="origin" />
<physvol>
<volumeref ref="vol_Diamond"/>
<positionref ref="origin" />   
</physvol> 
<physvol>
<volumeref ref="vol_Cr" />
<positionref ref="up_cr" />   
</physvol>
<physvol>
<volumeref ref="vol_Au" />
<positionref ref="up_au" />   
</physvol>
<physvol>
<volumeref ref="vol_Cr" />
<positionref ref="down_cr" />   
</physvol>
<physvol>
<volumeref ref="vol_Au" />
<positionref ref="down_au" />   
</physvol>
</volume>

</structure>

<setup name="Default" version="1.0">
<world ref="detector"/>
</setup>

</gdml>