<?xml version="1.0" encoding="UTF-8"?>
<!--DOCTYPE HDDS>
Hall D Geometry Data Base: Pair Spectrometer
********************************************
version 1.0: Initial version
<HDDS specification="v1.0" xmlns="http://www.gluex.org/hdds">
-->
<section name = "PairSpectrometer"
version = "1.0"
date = "2008-12-19"
author = "A.Somov"
top_volume = "HALL"
specification = "v1.0">
<!-- Origin of PairSpectrometer is center of the hall.
The pair spectrometer is situdated in the detector hall
after the collimator cave. The pair spectrometer converter
is defined in the BeamLine_HDDS.xml file, in the volume PTAR.
-->
<composition name="PairSpectrometer">
<posXYZ volume="PairPipe1" X_Y_Z="0.0 0.0 -101.0"/>
<posXYZ volume="PairMagnet" X_Y_Z="0.0 0.0 0.0" />
<posXYZ volume="MagnetLead" X_Y_Z="0.0 0.0 114.25" />
<posXYZ volume="PairVacChamb" X_Y_Z="0.0 0.0 175.35" />
<posXYZ volume="PairHodoscope" X_Y_Z="0.0 0.0 242.45" />
<posXYZ volume="PairPipe2" X_Y_Z="0.0 0.0 273.25"/>
<posXYZ volume="PairShielding" X_Y_Z="0.0 0.0 309.45" />
<posXYZ volume="PairSEGblocks" X_Y_Z="0.0 0.0 330.95" />
</composition >
<!-- Vacuum Pipe 1 -->
<composition name="PairPipe1" envelope="HPO1" >
<posXYZ volume="HPI1" X_Y_Z="0.0 0.0 0.0"/>
</composition>
<tubs name="HPO1" Rio_Z="0.0 2.54 19.1" material="Iron" />
<tubs name="HPI1" Rio_Z="0.0 2.38 19.1" material="Vacuum" />
<!-- Pair Spectrometer Magnet -->
<composition name="PairMagnet">
<posXYZ volume="EffectRegion" X_Y_Z="0.0 0.0 0.0"/>
<posXYZ volume="SidePlane" X_Y_Z="0.0 0.0 100.35"/>
</composition>
<composition name="EffectRegion" envelope="MAG3">
<posXYZ volume="POL3" X_Y_Z="0.0 +35.0 0.0" />
<posXYZ volume="POL3" X_Y_Z="0.0 -35.0 0.0" />
<posXYZ volume="GAP3" X_Y_Z="+86.0 0.0 0.0" />
<posXYZ volume="GAP3" X_Y_Z="-86.0 0.0 0.0" />
</composition>
<box name="MAG3" X_Y_Z="272.0 137.0 182.9" material="Vacuum" >
<apply region="PairBfield" />
</box>
<box name="POL3" X_Y_Z="272.0 67.0 182.9" material="Iron" />
<box name="GAP3" X_Y_Z="100.0 3.0 182.9" material="Iron" />
<composition name="SidePlane" envelope="PASP">
<posXYZ volume="SideGap" X_Y_Z="0.0 0.0 0.0"/>
</composition>
<composition name="SideGap" envelope="PSPH">
<posXYZ volume="TCL1" X_Y_Z=" 33.8 0.0 0.0"/>
<posXYZ volume="TCL2" X_Y_Z="-33.8 0.0 0.0"/>
</composition>
<box name="PASP" X_Y_Z="272.0 137.0 17.8" material="Iron" />
<box name="PSPH" X_Y_Z="72.0 3.0 17.8" material="Vacuum" />
<trd name="TCL1" Xmp_Ymp_Z="6.9 1. 3. 3. 17.8" inclination=" 9.410012 0" material="Lead" />
<trd name="TCL2" Xmp_Ymp_Z="6.9 1. 3. 3. 17.8" inclination="-9.410012 0" material="Lead" />
<!-- MagnetLead -->
<composition name="MagnetLead">
<posXYZ volume="VCL1" X_Y_Z="+50.9 0.0 0.0" />
<posXYZ volume="VCL1" X_Y_Z="-50.9 0.0 0.0" />
</composition>
<box name="VCL1" X_Y_Z="20.0 10.0 10.0" material="Lead" />
<!-- Pair Spectrometer Vacuum Chamber -->
<composition name="PairVacChamb">
<posXYZ volume="VacTRD" X_Y_Z="0.0 0.0 0.0" />
<posXYZ volume="VacSidePlane" X_Y_Z="0.0 0.0 66.4" />
</composition>
<composition name="VacTRD" envelope="PCO1">
<posXYZ volume="PCI1" X_Y_Z="0.0 0.0 0.0" />
</composition>
<trd name="PCO1" Xmp_Ymp_Z="73.2 181.2 8.8 8.8 132.2" material="Iron"/>
<trd name="PCI1" Xmp_Ymp_Z="72.0 180.0 8.8 8.8 132.2" material="Vacuum"/>
<composition name="VacSidePlane" envelope="VSPL">
<posXYZ volume="VHB1" X_Y_Z="+50.0 0.0 -0.0125" />
<posXYZ volume="VBW1" X_Y_Z="+50.0 0.0 0.2875" />
<posXYZ volume="VHB2" X_Y_Z="-50.0 0.0 -0.0125" />
<posXYZ volume="VBW2" X_Y_Z="-50.0 0.0 0.2875" />
<posXYZ volume="VVPH" X_Y_Z=" +0.0 0.0 0.0" />
</composition>
<box name="VSPL" X_Y_Z="181.2 8.8 0.6" material="Iron" />
<box name="VHB1" X_Y_Z="62.0 3.4 0.575" material="Vacuum" />
<box name="VBW1" X_Y_Z="62.0 3.4 0.025" material="Kapton" />
<box name="VHB2" X_Y_Z="62.0 3.4 0.575" material="Vacuum" />
<box name="VBW2" X_Y_Z="62.0 3.4 0.025" material="Kapton" />
<tubs name="VVPH" Rio_Z="0.0 2.5 0.6" material="Vacuum"/>
<!-- Hodoscope Counters -->
<composition name="PairHodoscope">
<!-- At the momenent we use 24 FSF counters (for positrons) and
6 WSF counters (for electrons). All FSF counters are tilted by
the same angle -15 deg. -->
<posXYZ volume="FF01" X_Y_Z="-74.802 0.0 0.122" rot="0 -15. 0"/>
<posXYZ volume="FF02" X_Y_Z="-73.696 0.0 0.118" rot="0 -15. 0"/>
<posXYZ volume="FF03" X_Y_Z="-72.624 0.0 0.113" rot="0 -15. 0"/>
<posXYZ volume="FF04" X_Y_Z="-71.588 0.0 0.109" rot="0 -15. 0"/>
<posXYZ volume="FF05" X_Y_Z="-70.578 0.0 0.107" rot="0 -15. 0"/>
<posXYZ volume="FF06" X_Y_Z="-69.592 0.0 0.103" rot="0 -15. 0"/>
<posXYZ volume="FF07" X_Y_Z="-68.636 0.0 0.099" rot="0 -15. 0"/>
<posXYZ volume="FF08" X_Y_Z="-67.705 0.0 0.097" rot="0 -15. 0"/>
<posXYZ volume="FF09" X_Y_Z="-66.799 0.0 0.093" rot="0 -15. 0"/>
<posXYZ volume="FF0a" X_Y_Z="-65.918 0.0 0.091" rot="0 -15. 0"/>
<posXYZ volume="FF0b" X_Y_Z="-65.062 0.0 0.087" rot="0 -15. 0"/>
<posXYZ volume="FF0c" X_Y_Z="-64.232 0.0 0.084" rot="0 -15. 0"/>
<posXYZ volume="FF0d" X_Y_Z="-63.421 0.0 0.082" rot="0 -15. 0"/>
<posXYZ volume="FF0e" X_Y_Z="-62.630 0.0 0.079" rot="0 -15. 0"/>
<posXYZ volume="FF0f" X_Y_Z="-61.860 0.0 0.077" rot="0 -15. 0"/>
<posXYZ volume="FF10" X_Y_Z="-61.109 0.0 0.074" rot="0 -15. 0"/>
<posXYZ volume="FF11" X_Y_Z="-60.374 0.0 0.073" rot="0 -15. 0"/>
<posXYZ volume="FF12" X_Y_Z="-59.653 0.0 0.071" rot="0 -15. 0"/>
<posXYZ volume="FF13" X_Y_Z="-58.952 0.0 0.068" rot="0 -15. 0"/>
<posXYZ volume="FF14" X_Y_Z="-58.267 0.0 0.067" rot="0 -15. 0"/>
<posXYZ volume="FF15" X_Y_Z="-57.596 0.0 0.064" rot="0 -15. 0"/>
<posXYZ volume="FF16" X_Y_Z="-56.941 0.0 0.063" rot="0 -15. 0"/>
<posXYZ volume="FF17" X_Y_Z="-56.300 0.0 0.061" rot="0 -15. 0"/>
<posXYZ volume="FF18" X_Y_Z="-55.675 0.0 0.059" rot="0 -15. 0"/>
<posXYZ volume="WF19" X_Y_Z="69.397 0.0 0.15" rot="0 16. 0"/>
<posXYZ volume="WF1a" X_Y_Z="52.330 0.0 0.05" rot="0 12. 0"/>
<posXYZ volume="WF1b" X_Y_Z="42.019 0.0 0.0" rot="0 10. 0"/>
<posXYZ volume="WF1c" X_Y_Z="35.207 0.0 0.0" rot="0 8. 0"/>
<posXYZ volume="WF1d" X_Y_Z="30.292 0.0 0.0" rot="0 7. 0"/>
<posXYZ volume="WF1e" X_Y_Z="26.581 0.0 0.0" rot="0 6. 0"/>
</composition>
<box name="FF01" X_Y_Z="1.072 3.0 0.5" material="Scintillator" sensitive="true" />
<box name="FF02" X_Y_Z="1.043 3.0 0.5" material="Scintillator" sensitive="true" />
<box name="FF03" X_Y_Z="1.005 3.0 0.5" material="Scintillator" sensitive="true" />
<box name="FF04" X_Y_Z="0.976 3.0 0.5" material="Scintillator" sensitive="true" />
<box name="FF05" X_Y_Z="0.956 3.0 0.5" material="Scintillator" sensitive="true" />
<box name="FF06" X_Y_Z="0.927 3.0 0.5" material="Scintillator" sensitive="true" />
<box name="FF07" X_Y_Z="0.898 3.0 0.5" material="Scintillator" sensitive="true" />
<box name="FF08" X_Y_Z="0.879 3.0 0.5" material="Scintillator" sensitive="true" />
<box name="FF09" X_Y_Z="0.850 3.0 0.5" material="Scintillator" sensitive="true" />
<box name="FF0a" X_Y_Z="0.831 3.0 0.5" material="Scintillator" sensitive="true" />
<box name="FF0b" X_Y_Z="0.802 3.0 0.5" material="Scintillator" sensitive="true" />
<box name="FF0c" X_Y_Z="0.782 3.0 0.5" material="Scintillator" sensitive="true" />
<box name="FF0d" X_Y_Z="0.763 3.0 0.5" material="Scintillator" sensitive="true" />
<box name="FF0e" X_Y_Z="0.744 3.0 0.5" material="Scintillator" sensitive="true" />
<box name="FF0f" X_Y_Z="0.724 3.0 0.5" material="Scintillator" sensitive="true" />
<box name="FF10" X_Y_Z="0.705 3.0 0.5" material="Scintillator" sensitive="true" />
<box name="FF11" X_Y_Z="0.696 3.0 0.5" material="Scintillator" sensitive="true" />
<box name="FF12" X_Y_Z="0.676 3.0 0.5" material="Scintillator" sensitive="true" />
<box name="FF13" X_Y_Z="0.657 3.0 0.5" material="Scintillator" sensitive="true" />
<box name="FF14" X_Y_Z="0.647 3.0 0.5" material="Scintillator" sensitive="true" />
<box name="FF15" X_Y_Z="0.628 3.0 0.5" material="Scintillator" sensitive="true" />
<box name="FF16" X_Y_Z="0.618 3.0 0.5" material="Scintillator" sensitive="true" />
<box name="FF17" X_Y_Z="0.599 3.0 0.5" material="Scintillator" sensitive="true" />
<box name="FF18" X_Y_Z="0.589 3.0 0.5" material="Scintillator" sensitive="true" />
<box name="WF19" X_Y_Z="1.31 3.0 0.5" material="Scintillator" sensitive="true" />
<box name="WF1a" X_Y_Z="0.75 3.0 0.5" material="Scintillator" sensitive="true" />
<box name="WF1b" X_Y_Z="0.54 3.0 0.5" material="Scintillator" sensitive="true" />
<box name="WF1c" X_Y_Z="0.35 3.0 0.5" material="Scintillator" sensitive="true" />
<box name="WF1d" X_Y_Z="0.25 3.0 0.5" material="Scintillator" sensitive="true" />
<box name="WF1e" X_Y_Z="0.20 3.0 0.5" material="Scintillator" sensitive="true" />
<!-- Vacuum Pipe 2 -->
<composition name="PairPipe2" envelope="HPO2" >
<posXYZ volume="HPI2" X_Y_Z="0.0 0.0 0.0"/>
</composition>
<tubs name="HPO2" Rio_Z="0.0 2.54 62.4" material="Iron" />
<tubs name="HPI2" Rio_Z="0.0 2.38 62.4" material="Vacuum" />
<!--Pair Lead Shielding -->
<composition name="PairShielding" envelope="PSHL">
<posXYZ volume="PairShieldHole" X_Y_Z="0.0 0.0 0.0"/>
</composition>
<composition name="PairShieldHole" envelope="OPSH">
<posXYZ volume="IPSH" X_Y_Z="0.0 0.0 0.0"/>
</composition>
<box name="PSHL" X_Y_Z="220.0 30.0 10.0" material="Lead" />
<tubs name="OPSH" Rio_Z="0.0 2.54 10.0" material="Iron"/>
<tubs name="IPSH" Rio_Z="0.0 2.38 10.0" material="Vacuum"/>
<!-- Pair spectrometer shielding SEG blocks. The properties of material of the SEG
block are very close to Iron.
-->
<composition name="PairSEGblocks" envelope="PCON">
<posXYZ volume="PairSEGHole" X_Y_Z="0.0 0.0 0.0"/>
</composition>
<composition name="PairSEGHole" envelope="OPCO">
<posXYZ volume="IPCO" X_Y_Z="0.0 0.0 0.0"/>
</composition>
<box name="PCON" X_Y_Z="396.24 66.04 33.0" material="Iron" />
<tubs name="OPCO" Rio_Z="0.0 2.54 33.0" material="Iron"/>
<tubs name="IPCO" Rio_Z="0.0 2.38 33.0" material="Vacuum"/>
</section>
<!-- </HDDS> -->