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<?xml version="1.0"?>
<DDDefinition xmlns="http://www.cern.ch/cms/DDL"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://www.cern.ch/cms/DDL
../../../DetectorDescription/Schema/DDLSchema.xsd">
<!-- Author: Steven M. Kaplan -->
<!-- Declare constants used in the PLT DDL -->
<ConstantsSection label="plt" eval="true">
<Constant name = "pltTilt" value = "1.57*deg" />
<Constant name = "SiPlane0RtoCenter" value = "49.9*mm" />
<Constant name = "SiPlane1RtoCenter" value = "51.*mm" />
<Constant name = "SiPlane2RtoCenter" value = "52.1*mm" />
<Constant name = "SiPlane0ZtoCenter" value = "1726.9*mm" />
<Constant name = "SiPlane1ZtoCenter" value = "1764.6*mm" />
<Constant name = "SiPlane2ZtoCenter" value = "1802.3*mm" />
<Constant name = "ROCWidthX" value = "8.0*mm" />
<Constant name = "ROCWidthY" value = "10.5*mm" />
<Constant name = "SiThkZ" value = "0.30*mm" />
<Constant name = "TelWidthX" value = "[ROCWidthX]" />
<Constant name = "TelWidthY" value = "[ROCWidthY]+2.2*mm" />
<Constant name = "TelWidthZ" value = "[SiPlane2ZtoCenter]-[SiPlane0ZtoCenter]+[SiThkZ]" />
<Constant name = "PLTMinR" value = "[cms:TrackBeamR1]" />
<Constant name = "PLTMaxR" value = "[cms:TrackLumiR1]" />
<Constant name = "NumberOfRows" value = "80" />
<Constant name = "NumberOfColumns" value = "52" />
<Constant name = "PixelRowWidth" value = "0.1*mm" />
<Constant name = "PixelColumnWidth" value = "0.15*mm" />
<Constant name = "ActiveAreaColumnWidth" value = "[PixelColumnWidth]*[NumberOfColumns]" />
<Constant name = "ActiveAreaRowWidth" value = "[PixelRowWidth]*[NumberOfRows]" />
</ConstantsSection>
<!-- Declare PLT component Solids -->
<SolidSection label="plt">
<Box name="PLTSensorPlane" dx="[ROCWidthX]/2." dy="[ROCWidthY]/2." dz="[SiThkZ]/2." />
<Tubs name="PLT" startPhi="0.0*deg" deltaPhi="360*deg" rMin="[PLTMinR]" rMax="[PLTMaxR]" dz="[TelWidthZ]/2."/>
<Box name="Telescope" dx="[TelWidthX]/2." dy="[TelWidthY]/2." dz="[TelWidthZ]/2." />
<Box name="PLTPixel" dx="[PixelColumnWidth]/2." dy="[PixelRowWidth]/2." dz="[SiThkZ]/2." />
<Box name="PLTSensorRow" dx="[ActiveAreaColumnWidth]/2." dy="[PixelRowWidth]/2." dz="[SiThkZ]/2." />
</SolidSection>
<!-- Define the Physical PLT Solids, i.e. the Logical Parts -->
<LogicalPartSection label="plt">
<LogicalPart name="PLT" category="unspecified">
<rSolid name="PLT"/>
<rMaterial name="materials:Vacuum"/>
</LogicalPart>
<LogicalPart name="Telescope" category="unspecified">
<rSolid name="Telescope"/>
<rMaterial name="materials:Vacuum"/>
</LogicalPart>
<LogicalPart name="PLTSensorPlane" category="unspecified">
<rSolid name="PLTSensorPlane"/>
<rMaterial name="materials:Vacuum"/>
</LogicalPart>
<LogicalPart name="PLTSensorRow" category="unspecified">
<rSolid name="PLTSensorRow"/>
<rMaterial name="materials:Vacuum"/>
</LogicalPart>
<LogicalPart name="PLTPixel" category="unspecified">
<rSolid name="PLTPixel"/>
<rMaterial name="materials:Silicon"/>
</LogicalPart>
</LogicalPartSection>
<!-- Position the Silicon in the telescope and copy the telescope to have 8 of them. Take this amalgamation of 8 telescopes then copy it into the PLTBCM volume-->
<PosPartSection label="plt">
<!-- Copy the pixels into a row to form the columns -->
<Algorithm name="global:DDLinear">
<rParent name="PLTSensorRow"/>
<String name="ChildName" value="PLTPixel"/>
<Numeric name="StartCopyNo" value="0"/>
<Numeric name="IncrCopyNo" value="1"/>
<Numeric name="N" value="[NumberOfColumns]"/>
<Numeric name="Delta" value="[PixelColumnWidth]"/>
<Vector name="Base" type="numeric" nEntries="3"> -[ActiveAreaColumnWidth]/2.+[PixelColumnWidth]/2.,0.*mm,0.*mm </Vector>
<Numeric name="Theta" value="90*deg"/>
<Numeric name="Phi" value="0.*deg"/>
</Algorithm>
<!-- Copy the rows to form the sensor plane! -->
<Algorithm name="global:DDLinear">
<rParent name="PLTSensorPlane"/>
<String name="ChildName" value="PLTSensorRow"/>
<Numeric name="StartCopyNo" value="0"/>
<Numeric name="IncrCopyNo" value="1"/>
<Numeric name="N" value="[NumberOfRows]"/>
<Numeric name="Delta" value="[PixelRowWidth]"/>
<Vector name="Base" type="numeric" nEntries="3"> 0.*mm,-[ROCWidthY]/2.+[ActiveAreaRowWidth]-([PixelRowWidth]/2.),0.*mm </Vector>
<Numeric name="Theta" value="90*deg"/>
<Numeric name="Phi" value="-90.*deg"/>
</Algorithm>
<!-- Copy the three sensor planes into the telescope-->
<PosPart copyNumber="0">
<rParent name="Telescope"/>
<rChild name="PLTSensorPlane"/>
<Translation x="0.*mm" y="-[TelWidthY]/2.+[ROCWidthY]/2." z="-[TelWidthZ]/2.+[SiThkZ]/2." />
<rRotation name="rotations:000D" />
</PosPart>
<PosPart copyNumber="1">
<rParent name="Telescope"/>
<rChild name="PLTSensorPlane"/>
<Translation x="0.*mm" y="-[TelWidthY]/2.+[ROCWidthY]/2.+1.1*mm" z="0.*mm" />
<rRotation name="rotations:000D" />
</PosPart>
<PosPart copyNumber="2">
<rParent name="Telescope"/>
<rChild name="PLTSensorPlane"/>
<Translation x="0.*mm" y="-[TelWidthY]/2.+[ROCWidthY]/2.+2.2*mm" z="[TelWidthZ]/2.-[SiThkZ]/2" />
<rRotation name="rotations:000D" />
</PosPart>
<!-- Copy the PLT into the PLTBCM volume -->
<!-- NOTE: The 2mm shift is due to the new tracker volume to make the plt planes positioned in |z| correctly.-->
<PosPart copyNumber="1">
<rParent name="pltbcm:PLTBCM"/>
<rChild name="PLT"/>
<Translation x="0.*mm" y="0.*mm" z="[SiPlane1ZtoCenter]-[pltbcm:PltBcmZ]-2.*mm" />
<rRotation name="rotations:000D"/>
</PosPart>
<!-- Old positioning without PLTBCM volume
<PosPart copyNumber="1">
<rParent name="cms:CMSE"/>
<rChild name="PLT"/>
<Translation x="0.*mm" y="0.*mm" z="[SiPlane1ZtoCenter]" />
<rRotation name="rotations:000D"/>
</PosPart>
<PosPart copyNumber="0">
<rParent name="cms:CMSE"/>
<rChild name="PLT"/>
<Translation x="0.*mm" y="0.*mm" z="-[SiPlane1ZtoCenter]" />
<rRotation name="rotations:180D"/>
</PosPart> -->
<!-- Copy the telescopes into the PLT volume starting with phi=112.5 degrees. RotateSolid vector gives correct orientation of the planes-->
<Algorithm name="global:DDAngular">
<rParent name="PLT"/>
<String name="ChildName" value="Telescope"/>
<Numeric name="StartCopyNo" value="0"/>
<Numeric name="IncrCopyNo" value="1"/>
<Numeric name="N" value="8"/>
<Numeric name="Radius" value="[SiPlane1RtoCenter]"/>
<Numeric name="StartAngle" value="112.5*deg"/>
<Numeric name="RangeAngle" value="360*deg"/>
<Vector name="Center" type="numeric" nEntries="3"> 0, 0, 0 </Vector>
<Vector name="RotateSolid" type="numeric" nEntries="24"> 0.*deg, 0.*deg, -90.*deg, 0.*deg, 0.*deg, 0.*deg, 0.*deg, 0.*deg, 0.*deg, 0.*deg, 0.*deg, 0.*deg, 0.*deg, 0.*deg, 0*deg, 0.*deg, 0.*deg, 0.*deg, 0.*deg, 0.*deg, 0.*deg, 0.*deg, 0.*deg, 0.*deg </Vector>
</Algorithm>
</PosPartSection>
</DDDefinition>
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