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#5mm collimator, 750um converter

#& xml
<?xml version="1.0" encoding="UTF-8"?>
<!--DOCTYPE HDDS>

  Hall D Geometry Data Base: Beam Line
  ************************************

     version 1.0: Initial version	-rtj

     Revision 1.1 10/18/2002 
     -added concrete shielding to the collimator housing 
     -added the virtual detectors to this code:
        DET1: disk intercepting entire beam upstream of collimators
        DET2: plane perpendicular to beam just after second collimator
        DET3: plane mounted just below the ceiling of collimator cave
        DET4: plane perpendicular to beam just after entry to hall
        DET5: plane perpendicular to beam at photon dump end of hall
        DET6: plane mounted just below the ceiling inside the hall
        DET7: plane perpendicular to beam just before the target
     -added a steel tube containing a vacuum that goes from the back of
      the collimator to the front of the solenoid  
     -csg-

     Revision 1.2 10/28/2002
     -revised collimator to the heavy shielding option 
     -added a steel tube containing a vacuum in the WALL, SHLD and ABS2 volumes
     -repositioned DET3 to be inside the collimator housing 
     -removed the BEAM volume from the collimator system
     -csg-

     Revision 1.3 1/9/2003
     -shrunk the size of the vacuum tube from r=5.3 to r=2.5 in order to
      extend the tube into the second steering magnet
     -csg-

     Revision 1.4 06/16/2003
     -mid-shielding option
     -modified DET1, now a cylinder placed in front of primary collimator
     -added tungsten pin-cushion detector model into simulation
     -csg- 

     Revision 2.0 05/16/2008
     -moved DET2 to just after the second collimator, in agreement with
      the comments below.  Somehow it got misplaced to upstream of the
      second collimator.  I guess no one was using it until now.
     -added the volume CONV for the pair conversion target located inside
      the vacuum pipe just downstream of the second sweep magnet.  Right
      now it its material is vacuum, but the thickness of 240 microns is
      chosen to make a 0.1% converter if the material is set to Carbon.


     Revision 2.1  12/12/2008, A.S., rtj
       Made the following changes in the composition 'collimatorStack':
  	  1. Added the composition BeamPipe0 describing a vacuum beam pipe at the entrance 
             of the collimator cave:
              - the beam pipe radius is 12.4 cm
              - the exit window: 250 micron Kapton with the radius of 10.14 cm. 
 	  2. Moved the active collimator, DET1, and other components 83.96 cm upstream the 
             beamline.
          3. Changed layout of the 1st passive collimator to a composite W/Pb:
	      - the inner part is a W  box,  5.08 x  5.08 x 20.0 cm3
              - the outer part is a Pb box, 30.48 x 30.48 x 20.0 cm3 
          4. Added  the vacuum beam pipe (Flange1 compositon) in front of the 1st sweeping 
             magnet:
              - use 150 micron Kapton entrance window
              - vaccuum goes all the way downstream the beamline until the GlueX detector.
          5. Modified the layout of the 1st sweeping magnet:
              - the outer dimensions are 29.2 x 24.8 x 355.6 cm3
              - the gap size is 10.22 x 4.9 cm2 
              - the field inside the gap is 0.23 T (integrated field is 0.82 Tm)
              - the elliptical vacuum pipe goes through the magnet. The semi-axes of the pipe 
              are 4.95 cm and 2.29 cm.        
          6. Added the concrete blocks around the 1st sweeping magnet, composition ConcreteWall1. 
             The size of the wall is 101.6 x 147.32 x 121.92 cm3.
          7. Added the composition Flange2 to connect the 1st sweeping magnet with a vacuum chamber.
          8. Added a vacuum chamber after the 1st sweeping magnet with the following dimensions:
              - 50.8 cm long tube with the inner and outer radii of Rin = 9.83 cm and Rout = 9.85.
          9. Added the small lead wall after the vacuum chamber, composition LeadBand1.
         10. Added the composition Flange3 to connect the vacuum pipe between the lead band and the
             2nd collimatoor.
         11. Changed material of the 2nd collimator from Nickel to Iron. The default pinhole 
             diameter was changed from 1 cm to 0.6 cm.
         12. Added the composition Flange4 to connect the vacuum pipe between the 2nd collimator and
             the 2nd sweeping magnet.
         13. Changed the layout of the second sweeping magnet:
              - outer dimensions are 42 x 20.8 cm2
              - the gap size is 20.3 x 5 cm2, the field in the gap is 0.23 T
              - 1.75 cm radius vacuum beam pipe goes through the magnet.         
         14. Added the composition Flange5 to connect 2nd the sweeping magnet with the vacuum beam 
             pipe.           
         15. Added a 1m long vacuum beam pipe. The inner and outer radii are 2.38 and 2.54 cm, 
             respectively.
         16. Added the small lead wall (composition LeadBand2), 81.28 x 20.32 x 10.16 cm3.
         17. Placed the vertical plane DET2 after the lead wall. 
         18. Added the composition Flange6 to connect the vacuum pipe between the lead wall and 
             a pair spectrometer converter box.          
         19. Added the pair spectrometer converter. The converter thickness and material can be set
             in the box 'PTAR'   <box  name="PTAR" X_Y_Z="1.0  1.0  0.0445" material="Aluminum" />.
         20. Added the composition Flange7 to connect the vacuum pipe between the converter and 
             the concrete wall.
         21. Modified the size of the concrete shielding wall to 450.0 x 270.0 x 121.92 cm3.
             Added passage to the collimator cave.
         22. Decreased thickness of the lead wall to 5.08 cm (size of the lead brick).
              
     Revision 2.2  12/22/2008
       Modified the composition 'beamPipe'. Now 'beamPipe' extends the vacuum from the 
       pair spectrometer to the position of the target.

     Revision 3.0  3/2/2011
       Large group of revisions, to reflect the beamline geometry and shielding
       in the engineering drawings for the cave, and the new pair spectrometer.

     Revision 3.1 9/6/2013
       Updates for compatibility with geant4 -rtj
       a) Many small shifts to various volumes to eliminate overlaps.
       b) Changes to dimensions of the active collimator wedges, and even
          the number of pins per row, so that all overlaps are eliminated.

     Revision 3.2 12/12/2016
       Updates to introduce the triplet polarimeter -rtj
       a) renamed downstream PS converter target from PTAR to CONV
       b) reserved the name PTAR for the triplet polarimeter target
       c) incorporated a detailed geometric model of the triplet polarimeter
          from the ASU group into the beamline geometry

     Revision 3.3 3/27/2017
     Added TAC and some material downstream the FCAL - A.S. 
     - FCAL dark box window, FCAL platform pipe with plexiglass window, beam 
     - intensity monitor, and TAC

     Revision 3.4 1/4/2019
      Small adjustments to eliminate illegal overlaps between volumes -rtj

<HDDS specification="v1.0" xmlns="http://www.gluex.org/hdds">
-->

<section name        = "BeamLine"
         version     = "3.4"
         date        = "2019-01-17"
         author      = "R.T. Jones"
         top_volume  = "collimatorPackage"
         specification = "v1.0">

<!-- Origin of collimatorPackage is center of the entrance face of the
     primary collimator.  					-->

  <composition name="collimatorPackage">
    <posXYZ volume="ShieldedCollimator" X_Y_Z="0.0  0.0  400.0" />
  </composition>

  <box name="SHLD" X_Y_Z="550.  550.  1300." material="Concrete"/>
  <composition name="ShieldedCollimator" envelope="SHLD">
    <posXYZ volume="pipeFromTaggerHall" X_Y_Z="0.0  0.0  -625.0" />
    <posXYZ volume="collimatorCave" X_Y_Z="0.0  35.0  25.0" />
  </composition>  
 
  <box  name="CAVE" X_Y_Z="450. 270. 1250." material="Air" />
  <composition name="collimatorCave" envelope="CAVE">
    <posXYZ volume="collimatorStack" X_Y_Z="0.0 -35.0 -500.0"/>     
<!--  <posXYZ volume="DET2" X_Y_Z="0.0  0.0  225.0" /> -->
    <posXYZ volume="DET3" X_Y_Z="0.0  132.0  0.0" />
  </composition>
 
  <composition name="collimatorSubCave">
    <posXYZ volume="collimatorStack" />
  </composition>

  <composition name="collimatorStack">
    <posXYZ volume="BeamPipe0"     X_Y_Z="0.0  0.0  -125.0"  />
    <!--posXYZ volume="PFLD"          X_Y_Z="0.0  0.0  -99.0"  />
    <posXYZ volume="PFSC"          X_Y_Z="0.0  0.0  -97.0"   />
    <posXYZ volume="PFSC"          X_Y_Z="0.0  0.0  -93.0"   /-->
    <posXYZ volume="DET1"          X_Y_Z="0.0  0.0  -49.46"  />
    <posXYZ volume="ColDetector"   X_Y_Z="0.0  0.0  -46.16"  />
    <posXYZ volume="PrimaryCol"    X_Y_Z="0.0  0.0  -33.96"  />
    <posXYZ volume="Flange1"       X_Y_Z="0.0  0.0   11.52"  />
    <posXYZ volume="sweepMagnet1"  X_Y_Z="0.0  0.0   189.32" />
    <posXYZ volume="ConcreteWall1" X_Y_Z="0.0  0.0   107.96" />
    <posXYZ volume="Flange2"       X_Y_Z="0.0  0.0   367.12" />
    <posXYZ volume="VacuumChamber" X_Y_Z="0.0  0.0   426.54" />
    <posXYZ volume="LeadBand1"     X_Y_Z="0.0  0.0   457.02" />
    <posXYZ volume="Flange3"       X_Y_Z="0.0  0.0   462.10" />
    <posXYZ volume="COL2"          X_Y_Z="0.0  0.0   555.04" />
    <posXYZ volume="Flange4"       X_Y_Z="0.0  0.0   580.44" />
    <posXYZ volume="sweepMagnet2"  X_Y_Z="0.0  0.0   630.28" />
    <posXYZ volume="Flange5"       X_Y_Z="0.0  0.0   648.28" />
    <posXYZ volume="BeamPipe1"     X_Y_Z="0.0  0.0   712.28" />
    <posXYZ volume="LeadBand2"     X_Y_Z="0.0  0.0   743.52" />
    <posXYZ volume="DET2"          X_Y_Z="0.0  35.0  748.65" /> 
    <posXYZ volume="Flange6"       X_Y_Z="0.0  0.0   748.70" />
    <posXYZ volume="TripletPolar"  X_Y_Z="0.0 0.0    820.00" />
    <posXYZ volume="Flange7"       X_Y_Z="0.0  0.0   840.954" />
    <posXYZ volume="ConcreteWall2" X_Y_Z="0.0  33.0  941.24" />
    <posXYZ volume="shieldingWall" X_Y_Z="0.0  35.0 1004.74" />     
    <!--    <posXYZ volume="TargetBox"     X_Y_Z="0.0  0.0 1085.00" />   -->
    <posXYZ volume="BeamPipe2"     X_Y_Z="0.0  0.0  1066.142" /> 
  </composition>
  
<!-- Beam Pipe 0 -->

  <composition name="pipeFromTaggerHall" envelope="PFTH">
    <posXYZ volume="PFTV" X_Y_Z="0.0 0.0 0.0"/>
  </composition>

  <tubs name="PFTH" Rio_Z="0.0   12.7  50.0" material="Iron" />
  <tubs name="PFTV" Rio_Z="0.0   12.4  50.0" material="Vacuum" />

  <composition name="BeamPipe0">
    <posXYZ volume="BeamPipeTube"    X_Y_Z="0.0  0.0  25.0" />
    <posXYZ volume="BeamPipeFlange1" X_Y_Z="0.0  0.0  48.58" />
    <posXYZ volume="BeamPipeExitWindow" X_Y_Z="0.0  0.0  50.0" />
    <posXYZ volume="BeamPipeFlange2" X_Y_Z="0.0  0.0  51.42"  />
  </composition>

  <composition name="BeamPipeTube" envelope="BPTO">
    <posXYZ volume="BPTI" X_Y_Z="0.0 0.0 0.0"/>
  </composition>

  <tubs name="BPTO" Rio_Z="0.0   12.7  50.0" material="Iron" />
  <tubs name="BPTI" Rio_Z="0.0   12.4  50.0" material="Vacuum" />

  <composition name="BeamPipeFlange1">
    <posXYZ volume="BFO1" X_Y_Z="0.0 0.0 0.0"/>
  </composition>

  <tubs name="BFO1" Rio_Z="12.7   15.24  2.84" material="Iron" />

  <composition name="BeamPipeExitWindow">
    <posXYZ volume="FCAP" X_Y_Z="0.0  0.0  0.0125"/>
  </composition>

  <tubs name="FCAP" Rio_Z="0.0   10.16   0.025" material="Kapton" />

  <composition name="BeamPipeFlange2">
    <posXYZ volume="BFO2" X_Y_Z="0.0  0.0  0.0"/>
  </composition>

  <tubs name="BFO2" Rio_Z="10.16   15.24   2.84"  material="Iron" />


<!-- Primary Collimator -->

  <composition name="PrimaryCol" envelope="PCPB">
    <posXYZ volume="TungstenInsert" X_Y_Z="0.0  0.0  0.0" />
  </composition>

  <box name="PCPB"  X_Y_Z="30.48  30.48  20." material="Lead" />

  <composition name="TungstenInsert" envelope="PCTT">
    <posXYZ volume="PCTH" X_Y_Z="0.0 0.0 0.0" />
    <!--posXYZ volume="PrimaryCollimatorAperture" rot="0 0" /-->
    <!--posXYZ volume="PrimaryCollimatorAperture" rot="0.02865 0 0" /-->
    <!--posXYZ volume="PrimaryCollimatorAperture" rot="0.05730 0 0" /-->
    <!--posXYZ volume="PrimaryCollimatorAperture" rot="0.11459 0 0" /-->
  </composition>
  <composition name="PrimaryCollimatorAperture" envelope="PCTH">
    <posXYZ volume="PCTI" X_Y_Z="0.0 0.0 -5.0" />
  </composition>

  <box  name="PCTT"  X_Y_Z="5.08   5.08   20." material="Tungsten" />
  <!--tubs name="PCTH"  Rio_Z="0.0    0.17   20." material="Air" /-->
  <tubs name="PCTH"  Rio_Z="0.0    0.25   20." material="Air" />
  <tubs name="PCTI"  Rio_Z="0.05   0.25   10." material="Tungsten" 
        comment="pin-hole insert for reduced intensity running" />


<!-- Flange 1 -->

  <composition name="Flange1">
    <posXYZ volume="FlangeOneDisk" X_Y_Z="0.0  0.0  -7.72" />
    <posXYZ volume="FlangeOneWindow" X_Y_Z="0.0  0.0  -6.65" />
    <posXYZ volume="FlangeOnePipe" X_Y_Z="0.0  0.0  -3.325" />
  </composition>

  <composition name="FlangeOneDisk">
    <posXYZ volume="FOI1" X_Y_Z="0.0  0.0  0.0"/>
  </composition>

  <tubs name="FOI1" Rio_Z="1.27  8.57  2.14"  material="Iron" />

  <composition name="FlangeOneWindow">
    <posXYZ volume="F1CP" X_Y_Z="0.0  0.0  -0.0075"/>
  </composition>

  <tubs name="F1CP" Rio_Z="0.0   1.27  0.015" material="Kapton" />

  <composition name="FlangeOnePipe" envelope="FOPO">
    <posXYZ volume="FOPI" X_Y_Z="0.0 0.0 0.0"/>
  </composition>

  <eltu name="FOPO" Rxy_Z="5.11  2.45   6.65" material="Iron" />
  <eltu name="FOPI" Rxy_Z="4.95  2.29   6.65" material="Vacuum" />


<!-- 1st Sweeping Magnet -->

  <composition name="sweepMagnet1" envelope="MAG1">
    <posXYZ volume="POL1" X_Y_Z="0.0 +7.425 0.0" />
    <posXYZ volume="POL1" X_Y_Z="0.0 -7.425 0.0" />
    <posXYZ volume="GAP1" X_Y_Z="-9.855 0.0  0.0" />
    <posXYZ volume="GAP1" X_Y_Z="+9.855 0.0  0.0" />
    <posXYZ volume="MagnetPipe1" X_Y_Z="0.0  0.0  0.0" />
  </composition> 

  <box name="MAG1" X_Y_Z="29.2 24.8 355.6" material="Air" >
    <apply region="sweepDipoleBfield" /> 
  </box> 

  <box name="POL1" X_Y_Z="29.2  9.95  355.6" material="Iron" />
  <box name="GAP1" X_Y_Z="9.49  4.9   355.6" material="Iron" />

  <composition name="MagnetPipe1" envelope="MPO1">
    <posXYZ volume="MPI1" X_Y_Z="0.0 0.0 0.0"/>
  </composition>

  <eltu name="MPO1" Rxy_Z="5.11  2.45  355.6" material="Iron" />
  <eltu name="MPI1" Rxy_Z="4.95  2.29  355.6" material="Vacuum" />


<!-- Concrete Wall around the 1st sweeping magnet -->

  <composition name="ConcreteWall1">
    <posXYZ volume="WTOP" X_Y_Z="0.0   +30.3  0.0" />
    <posXYZ volume="WBOT" X_Y_Z="0.0   -56.2  0.0" />
    <posXYZ volume="WSID" X_Y_Z="+32.7   0.0  0.0" />
    <posXYZ volume="WSID" X_Y_Z="-32.7   0.0  0.0" />
  </composition> 

  <box name="WTOP" X_Y_Z="101.6  35.8  121.92" material="Concrete" />
  <box name="WBOT" X_Y_Z="101.6  87.6  121.92" material="Concrete" />
  <box name="WSID" X_Y_Z="36.2   24.8  121.92" material="Concrete" />


<!-- Flange 2 -->

  <composition name="Flange2">
    <posXYZ volume="FlangeTwoDisk1" X_Y_Z="0.0  0.0  2.29" />
    <posXYZ volume="FlangeTwoDisk2" X_Y_Z="0.0  0.0  6.72"/>
    <posXYZ volume="FlangeTwoDisk3" X_Y_Z="0.0  0.0  16.88"/>
    <posXYZ volume="FlangeTwoDisk4" X_Y_Z="0.0  0.0  27.04"/>
    <posXYZ volume="FlangeTwoDisk5" X_Y_Z="0.0  0.0  31.6"/>
  </composition>

  <composition name="FlangeTwoDisk1" envelope="FTO1">
    <posXYZ volume="FTI1" X_Y_Z="0.0 0.0 0.0"/>
  </composition>

  <eltu name="FTO1" Rxy_Z="5.11  2.45   4.58" material="Iron" />
  <eltu name="FTI1" Rxy_Z="4.95  2.29   4.58" material="Vacuum" />

  <composition name="FlangeTwoDisk2" envelope="FTO2">
    <posXYZ volume="FTI2" X_Y_Z="0.0 0.0 0.0"/>
  </composition>

  <tubs name="FTO2" Rio_Z="0.0  8.57   4.28" material="Iron" />
  <tubs name="FTI2" Rio_Z="0.0  6.19   4.28" material="Vacuum" />

  <composition name="FlangeTwoDisk3" envelope="FTO3">
    <posXYZ volume="FTI3" X_Y_Z="0.0 0.0 0.0"/>
  </composition>

  <tubs name="FTO3" Rio_Z="0.0  6.21  16.04" material="Iron" />   
  <tubs name="FTI3" Rio_Z="0.0  6.19  16.04" material="Vacuum" /> 

  <composition name="FlangeTwoDisk4" envelope="FTO4">
    <posXYZ volume="FTI4" X_Y_Z="0.0 0.0 0.0"/>
  </composition>

  <tubs name="FTO4" Rio_Z="0.0  8.57   4.28" material="Iron" />
  <tubs name="FTI4" Rio_Z="0.0  6.19   4.28" material="Vacuum" />

  <composition name="FlangeTwoDisk5" envelope="FTO5">
    <posXYZ volume="FTI5" X_Y_Z="0.0 0.0 0.0"/>
  </composition>

  <tubs name="FTO5" Rio_Z="0.0  6.35   4.84" material="Iron" />
  <tubs name="FTI5" Rio_Z="0.0  6.19   4.84" material="Vacuum" />


<!-- Vacuum chamber after the 1st sweeping magnet-->

  <composition name="VacuumChamber">
    <posXYZ volume="VacuumChambDisk1" X_Y_Z="0.0 0.0 -25.30"/>
    <posXYZ volume="VacuumChambDisk2" X_Y_Z="0.0 0.0  0.0"/>
    <posXYZ volume="VacuumChambDisk3" X_Y_Z="0.0 0.0  25.30"/>
  </composition>

  <composition name="VacuumChambDisk1" envelope="VCO1">
    <posXYZ volume="VCI1" X_Y_Z="0.0 0.0 0.0"/>
  </composition>

  <tubs name="VCO1" Rio_Z="0.0  9.85   0.2" material="Iron" />
  <tubs name="VCI1" Rio_Z="0.0  6.19   0.2" material="Vacuum" />

  <composition name="VacuumChambDisk2" envelope="VCO2">
    <posXYZ volume="VCI2" X_Y_Z="0.0 0.0 0.0"/>
  </composition>

  <tubs name="VCO2" Rio_Z="0.0  9.85  50.40" material="Iron" />
  <tubs name="VCI2" Rio_Z="0.0  9.83  50.40" material="Vacuum" />

  <composition name="VacuumChambDisk3" envelope="VCO3">
    <posXYZ volume="VCI3" X_Y_Z="0.0 0.0 0.0"/>
  </composition>

  <tubs name="VCO3" Rio_Z="0.0  9.85  0.2" material="Iron" />
  <tubs name="VCI3" Rio_Z="0.0  2.38  0.2" material="Vacuum" />


<!-- Lead Band 1 -->

  <composition name="LeadBand1" envelope="LBD1">
    <posXYZ volume="LeadBandPipe1" X_Y_Z="0.0 0.0 0.0"/>
  </composition>

  <composition name="LeadBandPipe1" envelope="LBO1">
    <posXYZ volume="LBI1" X_Y_Z="0.0 0.0 0.0"/>
  </composition>

  <box name="LBD1" X_Y_Z="81.28 20.32 10.16" material="Lead" />
  <tubs name="LBO1" Rio_Z="0.0  2.54  10.16" material="Iron" />
  <tubs name="LBI1" Rio_Z="0.0  2.38  10.16" material="Vacuum" />


<!-- Flange 3 -->

  <composition name="Flange3">
    <posXYZ volume="FlangeThreeDisk1" X_Y_Z="0.0  0.0  24.56" />
    <posXYZ volume="FlangeThreeDisk2" X_Y_Z="0.0  0.0  50.70"/>
    <posXYZ volume="FlangeThreeDisk3" X_Y_Z="0.0  0.0  55.78"/>
    <posXYZ volume="FlangeThreeDisk4" X_Y_Z="0.0  0.0  60.86"/>
    <posXYZ volume="FlangeThreeDisk5" X_Y_Z="0.0  0.0  64.99"/>
  </composition>

  <composition name="FlangeThreeDisk1" envelope="F3O1">
    <posXYZ volume="F3I1" X_Y_Z="0.0 0.0 0.0"/>
  </composition>

  <tubs name="F3O1" Rio_Z="0.0  2.54  49.12" material="Iron" />
  <tubs name="F3I1" Rio_Z="0.0  2.38  49.12" material="Vacuum" />

  <composition name="FlangeThreeDisk2" envelope="F3O2">
    <posXYZ volume="F3I2" X_Y_Z="0.0 0.0 0.0"/>
  </composition>

  <tubs name="F3O2" Rio_Z="0.0  4.29   3.16" material="Iron" />
  <tubs name="F3I2" Rio_Z="0.0  2.38   3.16" material="Vacuum" />

  <composition name="FlangeThreeDisk3" envelope="F3O3">
    <posXYZ volume="F3I3" X_Y_Z="0.0 0.0 0.0"/>
  </composition>

  <tubs name="F3O3" Rio_Z="0.0  2.08  7.0" material="Iron" />
  <tubs name="F3I3" Rio_Z="0.0  2.06  7.0" material="Vacuum" />

  <composition name="FlangeThreeDisk4" envelope="F3O4">
    <posXYZ volume="F3I4" X_Y_Z="0.0 0.0 0.0"/>
  </composition>

  <tubs name="F3O4" Rio_Z="0.0  4.29   3.16" material="Iron" />
  <tubs name="F3I4" Rio_Z="0.0  2.38   3.16" material="Vacuum" />

  <composition name="FlangeThreeDisk5" envelope="F3O5">
    <posXYZ volume="F3I5" X_Y_Z="0.0 0.0 0.0"/>
  </composition>

  <tubs name="F3O5" Rio_Z="0.0  2.54   5.1" material="Iron" />
  <tubs name="F3I5" Rio_Z="0.0  2.38   5.1" material="Vacuum" />


<!-- 2nd Collimator -->

  <composition name="COL2" envelope="OCOL">
    <posXYZ volume="ICOL" X_Y_Z="0.0  0.0  0.0"/>
  </composition>

  <tubs name="OCOL" Rio_Z="0.0  10.0  50.8" material="Iron" />
  <tubs name="ICOL" Rio_Z="0.0   0.5  50.8" material="Vacuum" />

<!-- Flange 4 -->

  <composition name="Flange4">
    <posXYZ volume="FlangeFourDisk1" X_Y_Z="0.0  0.0  4.13" />
    <posXYZ volume="FlangeFourDisk2" X_Y_Z="0.0  0.0  9.84"/>
    <posXYZ volume="FlangeFourDisk3" X_Y_Z="0.0  0.0  14.92"/>
    <posXYZ volume="FlangeFourDisk4" X_Y_Z="0.0  0.0  20.0"/>
    <posXYZ volume="FlangeFourDisk5" X_Y_Z="0.0  0.0  26.71"/>
  </composition>

  <composition name="FlangeFourDisk1" envelope="F4O1">
    <posXYZ volume="F4I1" X_Y_Z="0.0 0.0 0.0"/>
  </composition>

  <tubs name="F4O1" Rio_Z="0.0  2.54  8.26" material="Iron" />
  <tubs name="F4I1" Rio_Z="0.0  2.38  8.26" material="Vacuum" />

  <composition name="FlangeFourDisk2" envelope="F4O2">
    <posXYZ volume="F4I2" X_Y_Z="0.0 0.0 0.0"/>
  </composition>

  <tubs name="F4O2" Rio_Z="0.0  4.29   3.16" material="Iron" />
  <tubs name="F4I2" Rio_Z="0.0  2.38   3.16" material="Vacuum" />

  <composition name="FlangeFourDisk3" envelope="F4O3">
    <posXYZ volume="F4I3" X_Y_Z="0.0 0.0 0.0"/>
  </composition>

  <tubs name="F4O3" Rio_Z="0.0  2.08  7.0" material="Iron" />
  <tubs name="F4I3" Rio_Z="0.0  2.06  7.0" material="Vacuum" />

  <composition name="FlangeFourDisk4" envelope="F4O4">
    <posXYZ volume="F4I4" X_Y_Z="0.0 0.0 0.0"/>
  </composition>

  <tubs name="F4O4" Rio_Z="0.0  4.29   3.16" material="Iron" />
  <tubs name="F4I4" Rio_Z="0.0  1.745  3.16" material="Vacuum" />

  <composition name="FlangeFourDisk5" envelope="F4O5">
    <posXYZ volume="F4I5" X_Y_Z="0.0 0.0 0.0"/>
  </composition>

  <tubs name="F4O5" Rio_Z="0.0  1.905   10.26" material="Iron" />
  <tubs name="F4I5" Rio_Z="0.0  1.745   10.26" material="Vacuum" />


<!-- 2nd Sweeping Magnet -->

  <composition name="sweepMagnet2">
    <posXYZ volume="Core" X_Y_Z="0.0  0.0  0.0" />
  </composition>

  <composition name="Core" envelope="POL2">
    <posXYZ volume="Aperture" X_Y_Z="0.0  0.0  0.0" />
  </composition>

  <composition name="Aperture" envelope="GAP2">
    <posXYZ volume="MagnetPipe2" X_Y_Z="0.0  0.0  0.0" />
  </composition>

  <box name="POL2" X_Y_Z="42.0  20.8  36.0" material="Iron" />
  <box name="GAP2" X_Y_Z="20.3   5.0  36.0" material="Air" >
    <apply region="sweepDipoleBfield" /> 
  </box> 

  <composition name="MagnetPipe2" envelope="MPO2">
    <posXYZ volume="MPI2" X_Y_Z="0.0 0.0 0.0"/>
  </composition>

  <tubs name="MPO2" Rio_Z="0.0  1.905  36.0" material="Iron" />
  <tubs name="MPI2" Rio_Z="0.0  1.745  36.0" material="Vacuum" />


<!-- Flange 5 -->

  <composition name="Flange5">
    <posXYZ volume="FlangeFiveDisk1" X_Y_Z="0.0  0.0  4.13" />
    <posXYZ volume="FlangeFiveDisk2" X_Y_Z="0.0  0.0  9.84" />
    <posXYZ volume="FlangeFiveDisk3" X_Y_Z="0.0  0.0  14.92"/>
    <posXYZ volume="FlangeFiveDisk4" X_Y_Z="0.0  0.0  20.0" />
    <posXYZ volume="FlangeFiveDisk5" X_Y_Z="0.0  0.0  29.71"/>
  </composition>

  <composition name="FlangeFiveDisk1" envelope="F5O1">
    <posXYZ volume="F5I1" X_Y_Z="0.0 0.0 0.0"/>
  </composition>

  <tubs name="F5O1" Rio_Z="0.0  1.905  8.26" material="Iron" />
  <tubs name="F5I1" Rio_Z="0.0  1.745  8.26" material="Vacuum" />

  <composition name="FlangeFiveDisk2" envelope="F5O2">
    <posXYZ volume="F5I2" X_Y_Z="0.0 0.0 0.0"/>
  </composition>

  <tubs name="F5O2" Rio_Z="0.0  4.29   3.16" material="Iron" />
  <tubs name="F5I2" Rio_Z="0.0  2.38   3.16" material="Vacuum" />

  <composition name="FlangeFiveDisk3" envelope="F5O3">
    <posXYZ volume="F5I3" X_Y_Z="0.0 0.0 0.0"/>
  </composition>

  <tubs name="F5O3" Rio_Z="0.0  2.08  7.0" material="Iron" />
  <tubs name="F5I3" Rio_Z="0.0  2.06  7.0" material="Vacuum" />

  <composition name="FlangeFiveDisk4" envelope="F5O4">
    <posXYZ volume="F5I4" X_Y_Z="0.0 0.0 0.0"/>
  </composition>

  <tubs name="F5O4" Rio_Z="0.0  4.29   3.16" material="Iron" />
  <tubs name="F5I4" Rio_Z="0.0  2.38   3.16" material="Vacuum" />

  <composition name="FlangeFiveDisk5" envelope="F5O5">
    <posXYZ volume="F5I5" X_Y_Z="0.0 0.0 0.0"/>
  </composition>

  <tubs name="F5O5" Rio_Z="0.0  2.54  16.26" material="Iron" />
  <tubs name="F5I5" Rio_Z="0.0  2.38  16.26" material="Vacuum" />


<!-- Beam Pipe1 -->

  <composition name="BeamPipe1" envelope="BPO1">
    <posXYZ volume="BPI1" X_Y_Z="0.0 0.0 0.0"/>
  </composition>

  <tubs name="BPO1" Rio_Z="0.0  2.54  52.32" material="Iron" />
  <tubs name="BPI1" Rio_Z="0.0  2.38  52.32" material="Vacuum" />

<!-- Lead Band 2 -->

  <composition name="LeadBand2" envelope="LBD2">
    <posXYZ volume="LeadBandPipe2" X_Y_Z="0.0 0.0 0.0"/>
  </composition>

  <composition name="LeadBandPipe2" envelope="LBO2">
    <posXYZ volume="LBI2" X_Y_Z="0.0 0.0 0.0"/>
  </composition>

  <box name="LBD2" X_Y_Z="81.28 20.32 10.16" material="Lead" />
  <tubs name="LBO2" Rio_Z="0.0  2.54  10.16" material="Iron" />
  <tubs name="LBI2" Rio_Z="0.0  2.38  10.16" material="Vacuum" />


<!-- Flange 6 -->

<!-- Without DET2
  <composition name="Flange6">
    <posXYZ volume="FlangeSixDisk1" X_Y_Z="0.0  0.0  4.13" />
    <posXYZ volume="FlangeSixDisk2" X_Y_Z="0.0  0.0  9.84" />
    <posXYZ volume="FlangeSixDisk3" X_Y_Z="0.0  0.0  14.92"/>
    <posXYZ volume="FlangeSixDisk4" X_Y_Z="0.0  0.0  20.0" />
    <posXYZ volume="FlangeSixDisk5" X_Y_Z="0.0  0.0  25.71"/>
  </composition>
-->

  <composition name="Flange6">
    <posXYZ volume="FlangeSixDisk1" X_Y_Z="0.0  0.0  4.08" />
    <posXYZ volume="FlangeSixDisk2" X_Y_Z="0.0  0.0  9.74" />
    <posXYZ volume="FlangeSixDisk3" X_Y_Z="0.0  0.0  14.82"/>
    <posXYZ volume="FlangeSixDisk4" X_Y_Z="0.0  0.0  19.9" />
    <posXYZ volume="FlangeSixDisk5" X_Y_Z="0.0  0.0  35.98"/>
  </composition>

  <composition name="FlangeSixDisk1" envelope="F6O1">
    <posXYZ volume="F6I1" X_Y_Z="0.0 0.0 0.0"/>
  </composition>

<!-- Without DET2
  <tubs name="F6O1" Rio_Z="0.0  2.54  8.26" material="Iron" />
  <tubs name="F6I1" Rio_Z="0.0  2.38  8.26" material="Vacuum" />
-->

  <tubs name="F6O1" Rio_Z="0.0  2.54  8.16" material="Iron" />
  <tubs name="F6I1" Rio_Z="0.0  2.38  8.16" material="Vacuum" />

  <composition name="FlangeSixDisk2" envelope="F6O2">
    <posXYZ volume="F6I2" X_Y_Z="0.0 0.0 0.0"/>
  </composition>

  <tubs name="F6O2" Rio_Z="0.0  4.29   3.16" material="Iron" />
  <tubs name="F6I2" Rio_Z="0.0  2.38   3.16" material="Vacuum" />

  <composition name="FlangeSixDisk3" envelope="F6O3">
    <posXYZ volume="F6I3" X_Y_Z="0.0 0.0 0.0"/>
  </composition>

  <tubs name="F6O3" Rio_Z="0.0  2.08  7.0" material="Iron" />
  <tubs name="F6I3" Rio_Z="0.0  2.06  7.0" material="Vacuum" />

  <composition name="FlangeSixDisk4" envelope="F6O4">
    <posXYZ volume="F6I4" X_Y_Z="0.0 0.0 0.0"/>
  </composition>

  <tubs name="F6O4" Rio_Z="0.0  4.29   3.16" material="Iron" />
  <tubs name="F6I4" Rio_Z="0.0  2.38   3.16" material="Vacuum" />

  <composition name="FlangeSixDisk5" envelope="F6O5">
    <posXYZ volume="F6I5" X_Y_Z="0.0 0.0 0.0"/>
  </composition>

  <tubs name="F6O5" Rio_Z="0.0  2.54   28.73" material="Iron" />
  <tubs name="F6I5" Rio_Z="0.0  2.38   28.73" material="Vacuum" />


  <composition name="TargetBox">
    <posXYZ volume="TargetBoxDisk1" X_Y_Z="0.0 0.0 -10.9"/>
    <posXYZ volume="TargetBoxDisk2" X_Y_Z="0.0 0.0  0.0" />
    <posXYZ volume="TargetBoxDisk3" X_Y_Z="0.0 0.0  10.9"/>
  </composition>

  <composition name="TargetBoxDisk1" envelope="TBO1">
    <posXYZ volume="TBI1" X_Y_Z="0.0 0.0 0.0"/>
  </composition>

  <box name="TBO1" X_Y_Z="22.0  20.0  0.2" material="Iron" />
  <tubs name="TBI1" Rio_Z="0.0  2.38  0.2" material="Vacuum" />

  <composition name="TargetBoxDisk2" envelope="TBO2">
    <posXYZ volume="TargetInnerBox" X_Y_Z="0.0 0.0 0.0"/>
  </composition>

  <composition name="TargetInnerBox" envelope="TBI2">
    <posXYZ volume="CONV" X_Y_Z="0.0 0.0 0.0"/>
  </composition>

  <box name="TBO2" X_Y_Z="22.0  20.0  21.6" material="Iron" />
  <box name="TBI2" X_Y_Z="21.6  19.6  21.6" material="Vacuum" />

  <composition name="TargetBoxDisk3" envelope="TBO3">
    <posXYZ volume="TBI3" X_Y_Z="0.0 0.0 0.0"/>
  </composition>

  <box name="TBO3" X_Y_Z="22.0  20.0  0.2" material="Iron" />
  <tubs name="TBI3" Rio_Z="0.0  2.38  0.2" material="Vacuum" />
  <box  name="CONV" X_Y_Z="1.0  1.0  0.0445" material="Aluminum" />






<!-- Flange 7 -->

  <composition name="Flange7">
    <posXYZ volume="FlangeSevenDisk1" X_Y_Z="0.0  0.0  8.8721" />
    <posXYZ volume="FlangeSevenDisk2" X_Y_Z="0.0  0.0  19.3224" />
    <posXYZ volume="FlangeSevenDisk3" X_Y_Z="0.0  0.0  24.4024" />
    <posXYZ volume="FlangeSevenDisk4" X_Y_Z="0.0  0.0  29.4824" />
    <posXYZ volume="FlangeSevenDisk5" X_Y_Z="0.0  0.0  35.1924" />
  </composition>

  <composition name="FlangeSevenDisk1" envelope="F7O1">
    <posXYZ volume="F7I1" X_Y_Z="0.0 0.0 0.0"/>
  </composition>

  <tubs name="F7O1" Rio_Z="0.0  2.54  17.74" material="Iron" />
  <tubs name="F7I1" Rio_Z="0.0  2.38  17.74" material="Vacuum" />

  <composition name="FlangeSevenDisk2" envelope="F7O2">
    <posXYZ volume="F7I2" X_Y_Z="0.0 0.0 0.0"/>
  </composition>

  <tubs name="F7O2" Rio_Z="0.0  4.29   3.16" material="Iron" />
  <tubs name="F7I2" Rio_Z="0.0  2.38   3.16" material="Vacuum" />

  <composition name="FlangeSevenDisk3" envelope="F7O3">
    <posXYZ volume="F7I3" X_Y_Z="0.0 0.0 0.0"/>
  </composition>

  <tubs name="F7O3" Rio_Z="0.0  2.08  7.0" material="Iron" />
  <tubs name="F7I3" Rio_Z="0.0  2.06  7.0" material="Vacuum" />

  <composition name="FlangeSevenDisk4" envelope="F7O4">
    <posXYZ volume="F7I4" X_Y_Z="0.0 0.0 0.0"/>
  </composition>

  <tubs name="F7O4" Rio_Z="0.0  4.29   3.16" material="Iron" />
  <tubs name="F7I4" Rio_Z="0.0  2.38   3.16" material="Vacuum" />

  <composition name="FlangeSevenDisk5" envelope="F7O5">
    <posXYZ volume="F7I5" X_Y_Z="0.0 0.0 0.0"/>
  </composition>

  <tubs name="F7O5" Rio_Z="0.0  2.54   8.26" material="Iron" />
  <tubs name="F7I5" Rio_Z="0.0  2.38   8.26" material="Vacuum" />


<!-- Concrete Wall -->

  <composition name="ConcreteWall2" envelope="BLC2">
    <posXYZ volume="ENTR" X_Y_Z="-179.0  0.0 -30.46"/>
    <posXYZ volume="Block2Hole" X_Y_Z="0.0 -33.0 0.0"/>
  </composition>

  <box name="ENTR" X_Y_Z="92.0 266.0 61.0" material="Air" />

  <composition name="Block2Hole" envelope="OBHO">
    <posXYZ volume="IBHO"  X_Y_Z="0.0 0.0 0.0"/>
  </composition>

  <box name="BLC2" X_Y_Z="450.0 266.0 121.92" material="Concrete" />
  <tubs name="OBHO" Rio_Z="0.0  2.54  121.92" material="Iron" />
  <tubs name="IBHO" Rio_Z="0.0  2.38  121.92" material="Vacuum" />


<!-- Lead Wall -->

  <composition name="shieldingWall" envelope="WALL">
    <posXYZ volume="WallHole" X_Y_Z="0.0  -35.0  0.0"/>
  </composition>

  <box name="WALL" X_Y_Z="450. 270. 5.08" material="Lead" />

  <composition name="WallHole" envelope="OWHO">
    <posXYZ volume="IWHO" X_Y_Z="0.0 0.0 0.0"/>
  </composition>

  <tubs name="OWHO" Rio_Z="0.0  2.54 5.08" material="Iron" />
  <tubs name="IWHO" Rio_Z="0.0  2.38 5.08" material="Vacuum" />


<!-- Beam Pipe2 -->

  <composition name="BeamPipe2" envelope="BPO2">
  <!-- MUST COMMENT OUt either one or the other of the two lines below -->
    <!-- <posXYZ volume="BeamPipe2Inner" /> enables the photon beam harp -->
    <posXYZ volume="BPI2" /> <!-- disables the photon beam harp -->
  </composition>
  
  <composition name="BeamPipe2Inner" envelope="BPI2">
    <posXYZ volume="photonBeamHarp" X_Y_Z="0.0 0.0 -27.38" />
  </composition>
  
  <composition name="photonBeamHarp">
    <posXYZ volume="PSCV" />
    <posXYZ volume="PSCH" />
  </composition>

  <tubs name="BPO2" Rio_Z="0.0  2.54   117.715" material="Iron" />
  <tubs name="BPI2" Rio_Z="0.0  2.38   117.715" material="Vacuum" />
    
  <composition name="PairSpecConverter" envelope="PSCM">
    <posXYZ volume="PSCV"/>
    <posXYZ volume="PSCH"/>
  </composition>
  
  <tubs name="PSCM" Rio_Z="0.0 2.38 0.53" material="Vacuum"/>
  <tubs name="PSCV" Rio_Z="0.0 1.143 0.01" material="Aluminum"/>
  <tubs name="PSCH" Rio_Z="1.143 2.38 0.53" material="Iron"/>

  <tubs name="DET1" Rio_Z="0.   50.  2." material="Air" />
  <box name="DET2" X_Y_Z=" 450. 270. 0.1" material="Vacuum" />
  <box name="DET3" X_Y_Z=" 450. 2. 918." material="Air" />

  
<!-- The composition 'beamPipe' extends the vacuum from the pair 
     spectrometer to the position of the target.

     Origin of beamPipe is center of the hall.
-->

  <composition name="beamPipe">
<!--    <posXYZ volume="DET4"     X_Y_Z="  0.0     0.0 -1400.0"/> -->
    <posXYZ volume="DET5"     X_Y_Z="  0.0     0.0  1400.0"/> 
    <posXYZ volume="TAC1" X_Y_Z="150.0  -350.0  1225.0" />  
    <posXYZ volume="DarkWindow" X_Y_Z="  150.0  -350.0  320.0" />
    <posXYZ volume="PlatformPipe" X_Y_Z="150.0  -350.0  650."/>
    <posXYZ volume="PlexWindow" X_Y_Z="150.0  -350.0  830."/>
    <posXYZ volume="IntMonitor" X_Y_Z="150.0  -350.0  834."/>
    <posXYZ volume="DET6"     X_Y_Z="  0.0   600.0     0.0"/>
    <!--posXYZ volume="DET7"     X_Y_Z="  0.0     0.0  -705.0"/--> 
    <posXYZ volume="HallBellows" X_Y_Z="150.0 -350.0 -1223.287"/>
    <posXYZ volume="HallPipe" X_Y_Z="150.0  -350.0  -1026.77"/>
    <!-- Plastic scintillator for beam diagonistics -->
    <!--posXYZ volume="DET8" X_Y_Z="150 -350.0 -834.0 "/-->
  </composition>

  <composition name="DarkWindow">
    <posXYZ volume="DBOW" X_Y_Z="  0.0  0.0  0.0" />
    <posXYZ volume="DBEW" X_Y_Z="  0.0  0.0  0.0" />
  </composition>

  <tubs name="DBOW" Rio_Z="20.0  60.0  0.3"  material="Aluminum"/>
  <tubs name="DBEW" Rio_Z="0.0   20.0  0.01" material="Tedlar"/>

  <composition name="PlatformPipe">
    <posXYZ volume="PPWD" X_Y_Z="0.0  0.0  -176.5127" />
    <posXYZ volume="PipeSection" X_Y_Z="0.0 0.0 0.0" />
    <posXYZ volume="PPWD" X_Y_Z="0.0  0.0   176.5127" />
  </composition>

  <tubs name="PPWD" Rio_Z="0.0   20.32  0.0254" material="Kapton" />

  <composition name="PipeSection" envelope="PPOV">
    <posXYZ volume="PPIV" X_Y_Z="0.0 0.0 0.0"/>
  </composition>

  <tubs name="PPOV" Rio_Z="0.0   20.32  353.0" material="Iron" />
  <tubs name="PPIV" Rio_Z="0.0   20.04  353.0" material="Vacuum" />

  <composition name="PlexWindow">
    <posXYZ volume="PPPW" X_Y_Z="0.0 0.0 0.0"/>
  </composition>

  <composition name="IntMonitor" >
    <posXYZ volume="INTM" X_Y_Z="0.0 0.0 0.0"/>
  </composition>

  <box  name="INTM" X_Y_Z="2  6  1" material="Scintillator"  />

  <tubs name="PPPW" Rio_Z="0.0   20.32  0.3" material="Plexiglas" />

  <box  name="TAC1" X_Y_Z="20  20  45" material="leadGlassF800" sensitive="true" />


  <box name="DET4" X_Y_Z="1700.0  1200.0  2.0" material="Vacuum" />
  <box name="DET5" X_Y_Z="1700.0  1198.0  2.0" material="Air" />
  <box name="DET6" X_Y_Z="1700.0  2.0  3000.0" material="Air" />
  <!--box name="DET7" X_Y_Z="1700.0  1198.0  2.0" material="Air" /-->
  <tubs name="DET7" Rio_Z="0.0 1.7399  2.0" material="Vacuum"
        comment="disk detector inside beam pipe at target entrance" />
  <box name="DET8" X_Y_Z="10.0 10.0 1.0" material="Scintillator" sensitive="true"/>

<!-- Hall bellows -->
<composition name="HallBellows" envelope="BLWO">
  <posXYZ volume="BLWI" X_Y_Z="0.0 0.0 -3.5011"/>
</composition>

<pcon name="BLWO" material="Iron">
  <polyplane Rio_Z="0.0 1.90500 -13.4"/>
  <polyplane Rio_Z="0.0 1.90500 -7.9148"/>
  <polyplane Rio_Z="0.0 4.27355 -7.9148"/>
  <polyplane Rio_Z="0.0 4.27355 -4.7652"/>
  <polyplane Rio_Z="0.0 1.905 -4.7652"/>
  <polyplane Rio_Z="0.0 1.905 -2.8602"/>
  <polyplane Rio_Z="0.0 2.0726 -2.8602"/>
  <polyplane Rio_Z="0.0 2.0726 2.8602"/>
  <polyplane Rio_Z="0.0 1.905 2.8602"/>
  <polyplane Rio_Z="0.0 1.905 4.7652"/>
  <polyplane Rio_Z="0.0 4.27355 4.7652"/>
  <polyplane Rio_Z="0.0 4.27355 6.3978"/>
</pcon>

<tubs name="BLWI" Rio_Z="0. 1.7399 19.7978" material="Vacuum"/>

<!-- Hall Pipe -->
  <composition name="HallPipe" envelope="OHPI" >
    <!--posXYZ volume="IHPI" X_Y_Z="0 0 98.6305"/-->
    <posXYZ volume="InnerHallPipe" X_Y_Z="0.0 0.0 98.4805"/> 
  </composition>

  <composition name="InnerHallPipe" envelope="IHPI">
    <posXYZ volume="DET7" X_Y_Z="0 0 280.0"/> 
    <!--posXYZ volume="CAP1" X_Y_Z="0.0  0.0  190.11265" /-->
  </composition>


  <pcon name="OHPI" material="Iron">
    <polyplane Rio_Z="0.0 4.27355 -190.1190"/>
    <polyplane Rio_Z="0.0 4.27355 -188.5442"/>
    <polyplane Rio_Z="0.0 1.90500 -188.5442"/>
    <polyplane Rio_Z="0.0 1.90500 +385.378"/>
    <polyplane Rio_Z="0.0 22.504 +385.378"/>
    <polyplane Rio_Z="0.0 22.504 +387.080"/>
  </pcon>

  <tubs name="IHPI" Rio_Z="0.0  1.7399 577.199" material="Vacuum" />
  <tubs name="CAP1" Rio_Z="0.0  1.7399 0.0127" material="Kapton"/>

<composition name="SixWayCross" envelope="SWCM">
  <posXYZ volume="sixWayTube" X_Y_Z="0 0 0"/>
  <posXYZ volume="sixWayTube" X_Y_Z="0. 0 0." rot="0. 180. 0."/>
  <posXYZ volume="sixWayTube" X_Y_Z="0. 0. 0." rot="0. 90. 0."/>
  <posXYZ volume="sixWayTube" X_Y_Z="0. 0. 0." rot="0. 270. 0."/>
  <posXYZ volume="sixWayTube" X_Y_Z="0. 0. 0." rot="90. 0. 0."/>
  <posXYZ volume="sixWayTube" X_Y_Z="0. 0. 0." rot="270. 0. 0."/>
  <posXYZ volume="sixWayBox" X_Y_Z="0. 0. 0."/> 
</composition>

<box name="SWCM" X_Y_Z="67.9196 67.9196 67.9196" material="Air"
     comment="Six-way cross mother volume"/>
<pcon name="SWCP" material="StainlessSteel" comment="Vacuum pipe for 6-way cross">
  <polyplane Rio_Z="0. 20.32 20.32"/>
  <polyplane Rio_Z="0. 20.32 32.258"/>
  <polyplane Rio_Z="0. 22.504 32.258"/>
  <polyplane Rio_Z="0. 22.504 33.9598"/>
</pcon>
  
<composition name="sixWayTube" envelope="SWCP">
  <posXYZ volume="SWC2" X_Y_Z="0.0 0.0 27.1399"/>
</composition>

<composition name="sixWayBox" envelope="SWCB">
  <posXYZ volume="SWC1" X_Y_Z="0.0 0.0 20.08125"/>
  <posXYZ volume="SWC1" X_Y_Z="0.0 0.0 -20.08125"/>
  <posXYZ volume="SWC1" X_Y_Z="0.0 20.08125 0.0" rot="90 0 0"/>
  <posXYZ volume="SWC1" X_Y_Z="0.0 -20.08125 0.0" rot="90 0 0"/>
  <posXYZ volume="SWC1" X_Y_Z="20.08125 0. 0." rot="0 90 0 "/>
  <posXYZ volume="SWC1" X_Y_Z="-20.08125 0. 0." rot="0 90 0"/>
  <posXYZ volume="coldCubeMotherVolume" X_Y_Z="0. 0. 0." />
</composition>

<composition name="coldCubeMotherVolume" envelope="CBXM">
  <posXYZ volume="CBX1" X_Y_Z="0. -7.712  0."/>
  <posXYZ volume="coldCubeBeamPlate" X_Y_Z="0. 4.28 12.1444"/>
  <posXYZ volume="coldCubeBeamPlate" X_Y_Z="0. 4.28 12.3032"/>
  <posXYZ volume="coldCubeBeamPlate" X_Y_Z="0. 4.28 -12.1444"/>
  <posXYZ volume="CBXS" X_Y_Z="12.1444 4.28 0."/>
  <posXYZ volume="CBXS" X_Y_Z="-12.1444 4.28 0."/>
  <posXYZ volume="coldCubeTopPlate" X_Y_Z="0. 16.272 0." rot="90 90 0"/>
  <posXYZ volume="coldCubeSidePlate" X_Y_Z="0. 4.28 11.9856"/>
  <posXYZ volume="coldCubeSidePlate" X_Y_Z="0. 4.28 -11.9856"/>
  <posXYZ volume="coldCubeSidePlate" X_Y_Z="11.9856 4.28 0." rot="0 90 0"/>
  <posXYZ volume="coldCubeSidePlate" X_Y_Z="-11.9856 4.28 0." rot="0 90 0"/>
</composition>

<composition name="coldCubeBeamPlate" envelope="CBXB">
  <posXYZ volume="CBH0" X_Y_Z="0. -4.2926 0."/>
</composition>

<composition name="coldCubeSidePlate" envelope="CBSP">
  <posXYZ volume="CBH2" X_Y_Z="0. 0. 0."/>
</composition>

<composition name="coldCubeTopPlate" envelope="CHXT">
  <posXYZ volume="CBH1" X_Y_Z="0. 0. 0." />
</composition>

<box name="CBSP" X_Y_Z="23.8124 23.8124 0.15875" material="Copper"/>
<box name="CHXT" X_Y_Z="24.13 24.13 0.15875" material="Copper"/>
<tubs name="CBH1" Rio_Z="0. 10.795 0.15875" material="Vacuum"/>
<tubs name="CBH0" Rio_Z="0 1.27 0.15875" material="Vacuum" 
      comment="Hole for beam"/>
<box name="CBH2" X_Y_Z="19.05 19.05 0.15875" material="Vacuum"/>
<box name="CBXB" X_Y_Z="21.8948 21.8948 0.15875" material="Copper"/>
<box name="CBXS" X_Y_Z="0.15875 21.8948 21.8948" material="Copper"/>
<box name="CBX1" X_Y_Z="24.13 0.15875 24.13" material="Copper"/>
<box name="CBXM" X_Y_Z="39.685 39.685 39.685" material="Vacuum"/>
<box name="SWCB" X_Y_Z="40.64 40.64 40.64" material="StainlessSteel"/>
<tubs name="SWC1" Rio_Z="0 19.84248 0.4775" material="Vacuum"/>
<tubs name="SWC2" Rio_Z="0. 19.84248 13.6398" material="Vacuum"/>

<!-- Approximation for the beam profiler -->
<box name="PFSC" X_Y_Z="12.8 12.8 0.2" material="Scintillator" sensitive="true"/>
<box name="PFLD" X_Y_Z="10.0 10.0 0.1" material="Lead"/>

<!-- Following is the definition of the active collimator.  It sits
     on the upstream end of the primary collimator and acts as an
     active absorber with segmented detection of the beam intensity.
-->

  <composition name="ColDetector" envelope="INSU">
    <posXYZ volume="ColAssemblyFinal" X_Y_Z="0.0 0.0 0.50"/>
    <posXYZ volume="HOUF" X_Y_Z="0.0  0.0  -1.85"/>
  </composition>

  <composition name="ColAssemblyFinal" envelope="HOUS">
    <posXYZ volume="ColAssemblyInitial" X_Y_Z="0.0  0.0  -0.15"/>
  </composition>
  
  <composition name="ColAssemblyInitial" envelope="AIRH">
    <mposPhi volume="DIV1" ncopy="4" Phi0="0" dPhi="90" R_Z="3.375 0."/>  
    <mposPhi volume="DIV2" ncopy="4" Phi0="45" dPhi="90"/>  
    <mposPhi volume="innerPinCushionWedge" ncopy="4" Phi0="45" dPhi="90" />
    <mposPhi volume="outerPinCushionWedge" ncopy="4" Phi0="45" dPhi="90" />
  </composition>

  <tubs name="INSU" Rio_Z="0.25   7.36  4.20" material="BoronNitride"/>
 
  <tubs name="HOUS" Rio_Z="0.25   6.70  3.20" material="Aluminum" />
 
  <tubs name="HOUF" Rio_Z="0.25   6.85  0.50" material="Aluminum"/>
 
  <tubs name="AIRH" Rio_Z="0.25   6.5002  2.9" material="Air" />
  <box  name="DIV1" X_Y_Z="6.25  0.1  2.9" material="Aluminum" />
  <tubs name="DIV2" Rio_Z="2.7   2.8  2.9" profile="-42.870 85.740"
                                           material="Aluminum" />

  <composition name="innerPinCushionWedge" envelope="ACWI">
    <posXYZ volume="ACBI" X_Y_Z="0.0 0.0 -0.85" />
    <posXYZ volume="innerPinCushionRow_1" X_Y_Z="0.276 0.0 0.40" />
    <posXYZ volume="innerPinCushionRow_2" X_Y_Z="0.376 0.0 0.40" />
    <posXYZ volume="innerPinCushionRow_3" X_Y_Z="0.476 0.0 0.40" />
    <posXYZ volume="innerPinCushionRow_4" X_Y_Z="0.576 0.0 0.40" />
    <posXYZ volume="innerPinCushionRow_5" X_Y_Z="0.676 0.0 0.40" />
    <posXYZ volume="innerPinCushionRow_6" X_Y_Z="0.776 0.0 0.40" />
  </composition>
  <composition name="innerPinCushionRow_1" envelope="AIR1">
    <mposY volume="PIN1" ncopy="3" Y0="-0.10" dY="0.10" />
  </composition>
  <composition name="innerPinCushionRow_2" envelope="AIR2">
    <mposY volume="PIN1" ncopy="3" Y0="-0.10" dY="0.10" />
  </composition>
  <composition name="innerPinCushionRow_3" envelope="AIR3">
    <mposY volume="PIN1" ncopy="5" Y0="-0.20" dY="0.10" />
  </composition>
  <composition name="innerPinCushionRow_4" envelope="AIR4">
    <mposY volume="PIN1" ncopy="7" Y0="-0.30" dY="0.10" />
  </composition>
  <composition name="innerPinCushionRow_5" envelope="AIR5">
    <mposY volume="PIN1" ncopy="7" Y0="-0.30" dY="0.10" />
  </composition>
  <composition name="innerPinCushionRow_6" envelope="AIR6">
    <mposY volume="PIN1" ncopy="9" Y0="-0.40" dY="0.10" />
  </composition>

  <composition name="outerPinCushionWedge" envelope="ACWO">
    <posXYZ volume="ACBO" X_Y_Z="0.0 0.0 -0.85" />
    <posXYZ volume="outerPinCushionRow_1" X_Y_Z="2.625 -1.50 0.40" />
    <posXYZ volume="outerPinCushionRow_1" X_Y_Z="2.625 +1.50 0.40" />
    <posXYZ volume="outerPinCushionRow_2" X_Y_Z="2.725 -1.40 0.40" />
    <posXYZ volume="outerPinCushionRow_2" X_Y_Z="2.725 +1.40 0.40" />
    <posXYZ volume="outerPinCushionRow_3" X_Y_Z="2.825 -1.35 0.40" />
    <posXYZ volume="outerPinCushionRow_3" X_Y_Z="2.825 +1.35 0.40" />
    <posXYZ volume="outerPinCushionRow_4" X_Y_Z="2.925 -1.15 0.40" />
    <posXYZ volume="outerPinCushionRow_4" X_Y_Z="2.925 +1.15 0.40" />
    <posXYZ volume="outerPinCushionRow_5" X_Y_Z="3.025 0.0 0.40" />
    <posXYZ volume="outerPinCushionRow_6" X_Y_Z="3.125 0.0 0.40" />
    <posXYZ volume="outerPinCushionRow_7" X_Y_Z="3.225 0.0 0.40" />
    <posXYZ volume="outerPinCushionRow_8" X_Y_Z="3.325 0.0 0.40" />
    <posXYZ volume="outerPinCushionRow_9" X_Y_Z="3.425 0.0 0.40" />
    <posXYZ volume="outerPinCushionRow_10" X_Y_Z="3.525 0.0 0.40" />
    <posXYZ volume="outerPinCushionRow_11" X_Y_Z="3.625 0.0 0.40" />
  </composition>
  <composition name="outerPinCushionRow_1" envelope="AOR1">
    <posXYZ volume="PIN1" />
  </composition>
  <composition name="outerPinCushionRow_2" envelope="AOR2">
    <mposY volume="PIN1" ncopy="3" Y0="-0.10" dY="0.10" />
  </composition>
  <composition name="outerPinCushionRow_3" envelope="AOR3">
    <mposY volume="PIN1" ncopy="6" Y0="-0.25" dY="0.10" />
  </composition>
  <composition name="outerPinCushionRow_4" envelope="AOR4">
    <mposY volume="PIN1" ncopy="10" Y0="-0.45" dY="0.10" />
  </composition>
  <composition name="outerPinCushionRow_5" envelope="AOR5">
    <mposY volume="PIN1" ncopy="35" Y0="-1.70" dY="0.10" />
  </composition>
  <composition name="outerPinCushionRow_6" envelope="AOR6">
    <mposY volume="PIN1" ncopy="35" Y0="-1.70" dY="0.10" />
  </composition>
  <composition name="outerPinCushionRow_7" envelope="AOR7">
    <mposY volume="PIN1" ncopy="37" Y0="-1.80" dY="0.10" />
  </composition>
  <composition name="outerPinCushionRow_8" envelope="AOR8">
    <mposY volume="PIN1" ncopy="39" Y0="-1.90" dY="0.10" />
  </composition>
  <composition name="outerPinCushionRow_9" envelope="AOR9">
    <mposY volume="PIN1" ncopy="39" Y0="-1.90" dY="0.10" />
  </composition>
  <composition name="outerPinCushionRow_10" envelope="AORA">
    <mposY volume="PIN1" ncopy="41" Y0="-2.00" dY="0.10" />
  </composition>
  <composition name="outerPinCushionRow_11" envelope="AORB">
    <mposY volume="PIN1" ncopy="41" Y0="-2.00" dY="0.10" />
  </composition>

  <tubs name="ACWI" Rio_Z="0.25 2.5  2.5" profile="-33. 66."
         material="Air" comment="active collimator inner wedge" />  
  <tubs name="ACWO" Rio_Z="2.97  6.0  2.5" profile="-33. 66."
         material="Air" comment="active collimator outer wedge" />  
  <tubs name="ACBI" Rio_Z="0.25 2.5  0.8" profile="-32. 64."
         material="SoftTungsten" comment="inner wedge base plate" />  
  <tubs name="ACBO" Rio_Z="3.0  6.0  0.8" profile="-30. 60."
         material="SoftTungsten" comment="outer wedge base plate" />  

  <box name="AIR1" X_Y_Z="0.051 0.30 1.7" material="Air" />
  <box name="AIR2" X_Y_Z="0.051 0.40 1.7" material="Air" />
  <box name="AIR3" X_Y_Z="0.051 0.50 1.7" material="Air" />
  <box name="AIR4" X_Y_Z="0.051 0.70 1.7" material="Air" />
  <box name="AIR5" X_Y_Z="0.051 0.80 1.7" material="Air" />
  <box name="AIR6" X_Y_Z="0.051 0.90 1.7" material="Air" />

  <box name="AOR1" X_Y_Z="0.051 0.10 1.7" material="Air" />
  <box name="AOR2" X_Y_Z="0.051 0.30 1.7" material="Air" />
  <box name="AOR3" X_Y_Z="0.051 0.70 1.7" material="Air" />
  <box name="AOR4" X_Y_Z="0.051 1.00 1.7" material="Air" />
  <box name="AOR5" X_Y_Z="0.051 3.50 1.7" material="Air" />
  <box name="AOR6" X_Y_Z="0.051 3.50 1.7" material="Air" />
  <box name="AOR7" X_Y_Z="0.051 3.70 1.7" material="Air" />
  <box name="AOR8" X_Y_Z="0.051 3.90 1.7" material="Air" />
  <box name="AOR9" X_Y_Z="0.051 3.90 1.7" material="Air" />
  <box name="AORA" X_Y_Z="0.051 4.10 1.7" material="Air" />
  <box name="AORB" X_Y_Z="0.051 4.10 1.7" material="Air" />

  <box name="PIN1" X_Y_Z="0.051 0.051 1.7" material="SoftTungsten" />
 
<!-- Following is the definition of the triplet polarimeter.  It sits
     just before of the shielding wall at the downstream end of the
     collimator cave, and contains a retractable pair conversion target
     called PTAR. Forward pairs are detected in the pair spectrometer.
-->

<!-- Origin of TripletPolar is the beam axis midpoint
     of the polarimeter vacuum box, as set by the outside walls. -->

  <composition name="TripletPolar">
     <apply region="nullBfield"/>
     <posXYZ volume="tripletPolar" X_Y_Z="1.5 0.0 0.0" unit_length="in" />
  </composition>

  <composition name="tripletPolar">
     <posXYZ volume="tpolEnclosure" />
     <posXYZ volume="tpolVacuumBoxFlange" X_Y_Z="6.50 0.0 0.0" unit_length="in" />
     <posXYZ volume="PTPB" X_Y_Z="-1.5 0.0 -7.25" unit_length="in" />
     <posXYZ volume="PTPB" X_Y_Z="-1.5 0.0 +7.25" unit_length="in" />
     <posXYZ volume="PTPF" X_Y_Z="-6.775 0.0 -2.0" rot="0 90 0" unit_length="in" />
     <posXYZ volume="PTPT" X_Y_Z="0.0 -7.25 -2.0" rot="90 0 0" unit_length="in" />
     <posXYZ volume="PTPM" X_Y_Z="-4.0 4.0 +7.25" unit_length="in" />
     <posXYZ volume="PTPX" X_Y_Z="2.0 3.0 -7.25" unit_length="in" />
     <posXYZ volume="PTPX" X_Y_Z="2.0 3.0 +7.25" unit_length="in" />
     <posXYZ volume="PTIB" X_Y_Z="-1.5 0.0 -7.25" unit_length="in" />
     <posXYZ volume="PTIB" X_Y_Z="-1.5 0.0 +7.25" unit_length="in" />
     <posXYZ volume="PTIF" X_Y_Z="-6.775 0.0 -2.0" rot="0 90 0" unit_length="in" />
     <posXYZ volume="PTIT" X_Y_Z="0.0 -7.25 -2.0" rot="90 0 0" unit_length="in" />
     <posXYZ volume="PTIM" X_Y_Z="-4.0 4.0 +7.25" unit_length="in" />
     <posXYZ volume="PTIX" X_Y_Z="2.0 3.0 -7.25" unit_length="in" />
     <posXYZ volume="PTIX" X_Y_Z="2.0 3.0 +7.25" unit_length="in" />
     <posXYZ volume="PTFB" X_Y_Z="-1.5 0.0 -7.94" unit_length="in" />
     <posXYZ volume="PTFB" X_Y_Z="-1.5 0.0 +7.94" unit_length="in" />
     <posXYZ volume="PTFX" X_Y_Z="2.0 3.0 -7.94" unit_length="in" />
     <posXYZ volume="PTFX" X_Y_Z="2.0 3.0 +7.94" unit_length="in" />
     <posXYZ volume="PTFT" X_Y_Z="0.0 -7.91 -2.0" rot="90 0 0" unit_length="in" />
     <posXYZ volume="PTFM" X_Y_Z="-4.0 4.0 +7.91" unit_length="in" />
     <posXYZ volume="PTFF" X_Y_Z="-6.910 0.0 -2.0" rot="0 90 0" unit_length="in" />
     <posXYZ volume="PTKX" X_Y_Z="2.0 3.0 +8.5" unit_length="in" />
     <posXYZ volume="PTKX" X_Y_Z="2.0 3.0 -8.5" unit_length="in" />
     <posXYZ volume="PTKM" X_Y_Z="-4.0 4.0 +8.5" unit_length="in" />
     <posXYZ volume="PTKF" X_Y_Z="-7.550 0.0 -2.0" rot="0 90 0" unit_length="in" />
     <posXYZ volume="PTDR" X_Y_Z="7.25 0.0 0.0" unit_length="in" />
  </composition>

  <composition name="tpolVacuumBox" envelope="PTB0">
     <posXYZ volume="tpolRailGuide" X_Y_Z="0.375 5.131 -3.380" unit_length="in" />
     <posXYZ volume="tpolTargetCarrier" X_Y_Z="0.25 1.941 -3.380" rot="0 180 0" unit_length="in" />
     <posXYZ volume="tpolTargetMotor" X_Y_Z="-1.625 4.1449 -1.6284" unit_length="in" />
     <posXYZ volume="tpolRecoilDetectorCard" X_Y_Z="-1.625 0.0 -2.0" rot="0 0 22.5" unit_length="in" />
     <posXYZ volume="PTA1" X_Y_Z="-1.625 0.0 -1.9700" unit_length="in" />
     <posXYZ volume="PTA2" X_Y_Z="-1.625 0.0 -1.9699" unit_length="in" />
     <posXYZ volume="PTA3" X_Y_Z="-1.625 0.0 -1.9698" unit_length="in" />
     <posXYZ volume="PTA4" X_Y_Z="-1.625 0.0 -2.0300" unit_length="in" />
     <!-- <posXYZ volume="PTA5" X_Y_Z="-1.625 0.0 -3.3651" unit_length="in" /> -->
     <posXYZ volume="PTMP" X_Y_Z="0.0 5.8125 0.0" unit_length="in" />
     <posXYZ volume="PTVR" X_Y_Z="0.0 5.745 -5.125" unit_length="in" />
     <posXYZ volume="PTHR" X_Y_Z="0.0 5.5525 -4.625" unit_length="in" />
     <posXYZ volume="PTVR" X_Y_Z="0.0 5.745 5.125" unit_length="in" />
     <posXYZ volume="PTHR" X_Y_Z="0.0 5.5525 4.625" unit_length="in" />
     <posXYZ volume="PTVR" X_Y_Z="-5.125 5.745 0.0" rot="0 90 0" unit_length="in" />
     <posXYZ volume="PTHR" X_Y_Z="-4.625 5.5525 0.0" rot="0 90 0" unit_length="in" />
     <posXYZ volume="PTBR" X_Y_Z="-1.625 2.1122 -2.0903" unit_length="in" />
     <posXYZ volume="PTBR" X_Y_Z="-1.625 -2.1122 -2.0903" unit_length="in" />
     <posXYZ volume="PTLG" X_Y_Z="0.4872 1.6315 -2.1841" unit_length="in" />
     <posXYZ volume="PTLG" X_Y_Z="-3.7372 1.6315 -2.1841" unit_length="in" />
     <posXYZ volume="PTVS" X_Y_Z="0.4872 4.375 -1.9966" unit_length="in" />
     <posXYZ volume="PTVS" X_Y_Z="-3.7372 4.375 -1.9966" unit_length="in" />
     <posXYZ volume="PTHS" X_Y_Z="0.4872 5.5 -0.6216" unit_length="in" />
     <posXYZ volume="PTHS" X_Y_Z="-3.7372 5.5 -0.6216" unit_length="in" />
  </composition>

  <composition name="tpolEnclosure" envelope="PTBO">
     <posXYZ volume="tpolVacuumBox" X_Y_Z="0.125 0.0 0.0" unit_length="in" />
     <posXYZ volume="PTH2" X_Y_Z="-1.5 0.0 6.125" unit_length="in" />
     <posXYZ volume="PTH2" X_Y_Z="-1.5 0.0 -6.125" unit_length="in" />
     <posXYZ volume="PTH3" X_Y_Z="-4.0 4.0 6.125" unit_length="in" />
     <posXYZ volume="PTH6" X_Y_Z="0.0 -6.125 -2.0" rot="90 0 0" unit_length="in" />
     <posXYZ volume="PTH4" X_Y_Z="2.0 3.0 6.125" unit_length="in" />
     <posXYZ volume="PTH4" X_Y_Z="2.0 3.0 -6.125" unit_length="in" />
     <posXYZ volume="PTH5" X_Y_Z="-6.125 0.0 -2.0" rot="0 90 0" unit_length="in" />
  </composition>

  
  <tubs name="PTAR" Rio_Z="0.0 0.375 0.0750" material="Beryllium" 
	comment="polarimeter converter target" /> 
  
  
  <box name="PTBO" X_Y_Z="12.5 12.5 12.5" material="Iron" unit_length="in"
                   comment="polarimeter vacuum box enclosure cube1" />
  <box name="PTB0" X_Y_Z="12.25 12.0 12.0" material="Vacuum" unit_length="in"
                   comment="polarimeter vacuum box enclosure cube2" />
  <box name="PTB1" X_Y_Z="0.5 12.0 12.0" material="Vacuum" unit_length="in"
                   comment="polarimeter vacuum box flange subtraction" />
  <box name="PTB2" X_Y_Z="0.5 15.0 17.0" material="Iron" unit_length="in"
                   comment="polarimeter vacuum box door flange" />
  <box name="PTB3" X_Y_Z="9.25 0.988 0.625" material="Aluminum" unit_length="in"
                   comment="polarimeter rail guide" />
  <box name="PTB4" X_Y_Z="9.25 0.312 0.125" material="Vacuum" unit_length="in"
                   comment="polarimeter rail gap subtraction" />
  <box name="PTB5" X_Y_Z="9.25 0.365 0.375" material="Vacuum" unit_length="in"
                   comment="polarimeter rail box subtraction" />
  <box name="PTB6" X_Y_Z="42.0 42.0 2.0" material="Iron" unit_length="mm"
                   comment="polarimeter motor plate" />
  <box name="PTB7" X_Y_Z="5.25 5.382 0.118" material="Aluminum" unit_length="in"
                   comment="polarimeter target holder" />
  <box name="PTB8" X_Y_Z="4.325 3.882 0.118" material="Vacuum" unit_length="in"
                   comment="polarimeter target holder subtraction" />
  <tubs name="PTH0" Rio_Z="0.0 21.0 69.0" material="Iron" unit_length="mm"
                   comment="polarimeter target motor" />
  <tubs name="PTH1" Rio_Z="0.0 10.5 32.0" material="Iron" unit_length="mm"
                   comment="polarimeter target motion gear" />
  <tubs name="PTH2" Rio_Z="0.0 0.9375 0.25" material="Vacuum" unit_length="in"
                   comment="polarimeter beam hole subtraction" />
  <tubs name="PTH3" Rio_Z="0.0 1.3125 0.25" material="Vacuum" unit_length="in"
                   comment="polarimeter motor hole subtraction" />
  <tubs name="PTH4" Rio_Z="0.0 0.9375 0.25" material="Vacuum" unit_length="in"
                   comment="polarimeter auxilliary hole subtraction" />
  <tubs name="PTH5" Rio_Z="0.0 1.9375 0.25" material="Vacuum" unit_length="in"
                   comment="polarimeter feed hole subtraction" />
  <tubs name="PTH6" Rio_Z="0.0 1.3125 0.25" material="Vacuum" unit_length="in"
                   comment="polarimeter turbo pump hole subtraction" />
  <tubs name="PTH7" Rio_Z="0.0 0.375 0.118" material="Vacuum" unit_length="in"
                   comment="polarimeter converter tray subtraction" />

  <composition name="tpolVacuumBoxFlange" envelope="PTB2">
     <posXYZ volume="PTB1" />
  </composition>
  <composition name="tpolRailGuide" envelope="PTB3">
     <posXYZ volume="PTB4" X_Y_Z="0.0 -0.338 0.0" unit_length="in" />
     <posXYZ volume="PTB5" X_Y_Z="0.0 0.0005 0.0" unit_length="in" />
  </composition>
  <composition name="tpolTargetDisk" envelope="PTH7">
     <posXYZ volume="PTAR" />
  </composition>
  <composition name="tpolTargetCarrier" envelope="PTB7">
     <posXYZ volume="PTB8" X_Y_Z="0.4625 0.75 0.0" unit_length="in" />
     <posXYZ volume="tpolTargetDisk" X_Y_Z="1.875 -1.941 0.0" unit_length="in" />
     <posXYZ volume="tpolTargetDisk" X_Y_Z="0.625 -1.941 0.0" unit_length="in" />
     <posXYZ volume="tpolTargetDisk" X_Y_Z="-0.625 -1.941 0.0" unit_length="in" />
  </composition>
  <composition name="tpolTargetMotor">
     <posXYZ volume="PTH0" />
     <posXYZ volume="PTB6" X_Y_Z="0.0 0.0 -35.5" unit_length="mm" />
     <posXYZ volume="PTH1" X_Y_Z="0.0 0.0 -62.0" unit_length="mm" />
  </composition>
  
  <composition name="tpolRecoilDetector" envelope="PTDE">
     <posXYZ volume="tpolRecoilRing1" />
     <posXYZ volume="tpolRecoilRing2" />
     <posXYZ volume="tpolRecoilRing3" />
     <posXYZ volume="tpolRecoilRing4" />
     <posXYZ volume="tpolRecoilRing5" />
     <posXYZ volume="tpolRecoilRing6" />
     <posXYZ volume="tpolRecoilRing7" />
     <posXYZ volume="tpolRecoilRing8" />
     <posXYZ volume="tpolRecoilRing9" />
     <posXYZ volume="tpolRecoilRing10" />
     <posXYZ volume="tpolRecoilRing11" />
     <posXYZ volume="tpolRecoilRing12" />
     <posXYZ volume="tpolRecoilRing13" />
     <posXYZ volume="tpolRecoilRing14" />
     <posXYZ volume="tpolRecoilRing15" />
     <posXYZ volume="tpolRecoilRing16" />
     <posXYZ volume="tpolRecoilRing17" />
     <posXYZ volume="tpolRecoilRing18" />
     <posXYZ volume="tpolRecoilRing19" />
     <posXYZ volume="tpolRecoilRing20" />
     <posXYZ volume="tpolRecoilRing21" />
     <posXYZ volume="tpolRecoilRing22" />
     <posXYZ volume="tpolRecoilRing23" />
     <posXYZ volume="tpolRecoilRing24" />
  </composition>
  <tubs name="PTDE" Rio_Z="11.0 35.0 1.5" material="Vacuum" unit_length="mm" 
                   comment="container for the triplet polarimeter detector" />

  <composition name="tpolRecoilRing1" envelope="PTRA">
     <mposPhi volume="PTSA" ncopy="32" Phi0="-16.875" dPhi="11.25">
        <ring value="1" />
        <sector value="1" step="1" />
     </mposPhi>
  </composition>
  <composition name="tpolRecoilRing2" envelope="PTRB">
     <mposPhi volume="PTSB" ncopy="32" Phi0="-16.875" dPhi="11.25">
        <ring value="2" />
        <sector value="1" step="1" />
     </mposPhi>
  </composition>
  <composition name="tpolRecoilRing3" envelope="PTRC">
     <mposPhi volume="PTSC" ncopy="32" Phi0="-16.875" dPhi="11.25">
        <ring value="3" />
        <sector value="1" step="1" />
     </mposPhi>
  </composition>
  <composition name="tpolRecoilRing4" envelope="PTRD">
     <mposPhi volume="PTSD" ncopy="32" Phi0="-16.875" dPhi="11.25">
        <ring value="4" />
        <sector value="1" step="1" />
     </mposPhi>
  </composition>
  <composition name="tpolRecoilRing5" envelope="PTRE">
     <mposPhi volume="PTSE" ncopy="32" Phi0="-16.875" dPhi="11.25">
        <ring value="5" />
        <sector value="1" step="1" />
     </mposPhi>
  </composition>
  <composition name="tpolRecoilRing6" envelope="PTRF">
     <mposPhi volume="PTSF" ncopy="32" Phi0="-16.875" dPhi="11.25">
        <ring value="6" />
        <sector value="1" step="1" />
     </mposPhi>
  </composition>
  <composition name="tpolRecoilRing7" envelope="PTRG">
     <mposPhi volume="PTSG" ncopy="32" Phi0="-16.875" dPhi="11.25">
        <ring value="7" />
        <sector value="1" step="1" />
     </mposPhi>
  </composition>
  <composition name="tpolRecoilRing8" envelope="PTRH">
     <mposPhi volume="PTSH" ncopy="32" Phi0="-16.875" dPhi="11.25">
        <ring value="8" />
        <sector value="1" step="1" />
     </mposPhi>
  </composition>
  <composition name="tpolRecoilRing9" envelope="PTRI">
     <mposPhi volume="PTSI" ncopy="32" Phi0="-16.875" dPhi="11.25">
        <ring value="9" />
        <sector value="1" step="1" />
     </mposPhi>
  </composition>
  <composition name="tpolRecoilRing10" envelope="PTRJ">
     <mposPhi volume="PTSJ" ncopy="32" Phi0="-16.875" dPhi="11.25">
        <ring value="10" />
        <sector value="1" step="1" />
     </mposPhi>
  </composition>
  <composition name="tpolRecoilRing11" envelope="PTRK">
     <mposPhi volume="PTSK" ncopy="32" Phi0="-16.875" dPhi="11.25">
        <ring value="11" />
        <sector value="1" step="1" />
     </mposPhi>
  </composition>
  <composition name="tpolRecoilRing12" envelope="PTRL">
     <mposPhi volume="PTSL" ncopy="32" Phi0="-16.875" dPhi="11.25">
        <ring value="12" />
        <sector value="1" step="1" />
     </mposPhi>
  </composition>
  <composition name="tpolRecoilRing13" envelope="PTRM">
     <mposPhi volume="PTSM" ncopy="32" Phi0="-16.875" dPhi="11.25">
        <ring value="13" />
        <sector value="1" step="1" />
     </mposPhi>
  </composition>
  <composition name="tpolRecoilRing14" envelope="PTRN">
     <mposPhi volume="PTSN" ncopy="32" Phi0="-16.875" dPhi="11.25">
        <ring value="14" />
        <sector value="1" step="1" />
     </mposPhi>
  </composition>
  <composition name="tpolRecoilRing15" envelope="PTRO">
     <mposPhi volume="PTSO" ncopy="32" Phi0="-16.875" dPhi="11.25">
        <ring value="15" />
        <sector value="1" step="1" />
     </mposPhi>
  </composition>
  <composition name="tpolRecoilRing16" envelope="PTRP">
     <mposPhi volume="PTSP" ncopy="32" Phi0="-16.875" dPhi="11.25">
        <ring value="16" />
        <sector value="1" step="1" />
     </mposPhi>
  </composition>
  <composition name="tpolRecoilRing17" envelope="PTRQ">
     <mposPhi volume="PTSQ" ncopy="32" Phi0="-16.875" dPhi="11.25">
        <ring value="17" />
        <sector value="1" step="1" />
     </mposPhi>
  </composition>
  <composition name="tpolRecoilRing18" envelope="PTRR">
     <mposPhi volume="PTSR" ncopy="32" Phi0="-16.875" dPhi="11.25">
        <ring value="18" />
        <sector value="1" step="1" />
     </mposPhi>
  </composition>
  <composition name="tpolRecoilRing19" envelope="PTRS">
     <mposPhi volume="PTSS" ncopy="32" Phi0="-16.875" dPhi="11.25">
        <ring value="19" />
        <sector value="1" step="1" />
     </mposPhi>
  </composition>
  <composition name="tpolRecoilRing20" envelope="PTRT">
     <mposPhi volume="PTST" ncopy="32" Phi0="-16.875" dPhi="11.25">
        <ring value="20" />
        <sector value="1" step="1" />
     </mposPhi>
  </composition>
  <composition name="tpolRecoilRing21" envelope="PTRU">
     <mposPhi volume="PTSU" ncopy="32" Phi0="-16.875" dPhi="11.25">
        <ring value="21" />
        <sector value="1" step="1" />
     </mposPhi>
  </composition>
  <composition name="tpolRecoilRing22" envelope="PTRV">
     <mposPhi volume="PTSV" ncopy="32" Phi0="-16.875" dPhi="11.25">
        <ring value="22" />
        <sector value="1" step="1" />
     </mposPhi>
  </composition>
  <composition name="tpolRecoilRing23" envelope="PTRW">
     <mposPhi volume="PTSW" ncopy="32" Phi0="-16.875" dPhi="11.25">
        <ring value="23" />
        <sector value="1" step="1" />
     </mposPhi>
  </composition>
  <composition name="tpolRecoilRing24" envelope="PTRX">
     <mposPhi volume="PTSX" ncopy="32" Phi0="-16.875" dPhi="11.25">
        <ring value="24" />
        <sector value="1" step="1" />
     </mposPhi>
  </composition>

  <tubs name="PTRA" Rio_Z="11 12 1.034" material="Silicon" unit_length="mm" />
  <tubs name="PTRB" Rio_Z="12 13 1.034" material="Silicon" unit_length="mm" />
  <tubs name="PTRC" Rio_Z="13 14 1.034" material="Silicon" unit_length="mm" />
  <tubs name="PTRD" Rio_Z="14 15 1.034" material="Silicon" unit_length="mm" />
  <tubs name="PTRE" Rio_Z="15 16 1.034" material="Silicon" unit_length="mm" />
  <tubs name="PTRF" Rio_Z="16 17 1.034" material="Silicon" unit_length="mm" />
  <tubs name="PTRG" Rio_Z="17 18 1.034" material="Silicon" unit_length="mm" />
  <tubs name="PTRH" Rio_Z="18 19 1.034" material="Silicon" unit_length="mm" />
  <tubs name="PTRI" Rio_Z="19 20 1.034" material="Silicon" unit_length="mm" />
  <tubs name="PTRJ" Rio_Z="20 21 1.034" material="Silicon" unit_length="mm" />
  <tubs name="PTRK" Rio_Z="21 22 1.034" material="Silicon" unit_length="mm" />
  <tubs name="PTRL" Rio_Z="22 23 1.034" material="Silicon" unit_length="mm" />
  <tubs name="PTRM" Rio_Z="23 24 1.034" material="Silicon" unit_length="mm" />
  <tubs name="PTRN" Rio_Z="24 25 1.034" material="Silicon" unit_length="mm" />
  <tubs name="PTRO" Rio_Z="25 26 1.034" material="Silicon" unit_length="mm" />
  <tubs name="PTRP" Rio_Z="26 27 1.034" material="Silicon" unit_length="mm" />
  <tubs name="PTRQ" Rio_Z="27 28 1.034" material="Silicon" unit_length="mm" />
  <tubs name="PTRR" Rio_Z="28 29 1.034" material="Silicon" unit_length="mm" />
  <tubs name="PTRS" Rio_Z="29 30 1.034" material="Silicon" unit_length="mm" />
  <tubs name="PTRT" Rio_Z="30 31 1.034" material="Silicon" unit_length="mm" />
  <tubs name="PTRU" Rio_Z="31 32 1.034" material="Silicon" unit_length="mm" />
  <tubs name="PTRV" Rio_Z="32 33 1.034" material="Silicon" unit_length="mm" />
  <tubs name="PTRW" Rio_Z="33 34 1.034" material="Silicon" unit_length="mm" />
  <tubs name="PTRX" Rio_Z="34 35 1.034" material="Silicon" unit_length="mm" />
  <tubs name="PTSA" Rio_Z="11 12 1.034" profile="-5.625 5.625" unit_length="mm"
        material="Silicon" sensitive="true" />
  <tubs name="PTSB" Rio_Z="12 13 1.034" profile="-5.625 5.625" unit_length="mm"
        material="Silicon" sensitive="true" />
  <tubs name="PTSC" Rio_Z="13 14 1.034" profile="-5.625 5.625" unit_length="mm"
        material="Silicon" sensitive="true" />
  <tubs name="PTSD" Rio_Z="14 15 1.034" profile="-5.625 5.625" unit_length="mm"
        material="Silicon" sensitive="true" />
  <tubs name="PTSE" Rio_Z="15 16 1.034" profile="-5.625 5.625" unit_length="mm"
        material="Silicon" sensitive="true" />
  <tubs name="PTSF" Rio_Z="16 17 1.034" profile="-5.625 5.625" unit_length="mm"
        material="Silicon" sensitive="true" />
  <tubs name="PTSG" Rio_Z="17 18 1.034" profile="-5.625 5.625" unit_length="mm"
        material="Silicon" sensitive="true" />
  <tubs name="PTSH" Rio_Z="18 19 1.034" profile="-5.625 5.625" unit_length="mm"
        material="Silicon" sensitive="true" />
  <tubs name="PTSI" Rio_Z="19 20 1.034" profile="-5.625 5.625" unit_length="mm"
        material="Silicon" sensitive="true" />
  <tubs name="PTSJ" Rio_Z="20 21 1.034" profile="-5.625 5.625" unit_length="mm"
        material="Silicon" sensitive="true" />
  <tubs name="PTSK" Rio_Z="21 22 1.034" profile="-5.625 5.625" unit_length="mm"
        material="Silicon" sensitive="true" />
  <tubs name="PTSL" Rio_Z="22 23 1.034" profile="-5.625 5.625" unit_length="mm"
        material="Silicon" sensitive="true" />
  <tubs name="PTSM" Rio_Z="23 24 1.034" profile="-5.625 5.625" unit_length="mm"
        material="Silicon" sensitive="true" />
  <tubs name="PTSN" Rio_Z="24 25 1.034" profile="-5.625 5.625" unit_length="mm"
        material="Silicon" sensitive="true" />
  <tubs name="PTSO" Rio_Z="25 26 1.034" profile="-5.625 5.625" unit_length="mm"
        material="Silicon" sensitive="true" />
  <tubs name="PTSP" Rio_Z="26 27 1.034" profile="-5.625 5.625" unit_length="mm"
        material="Silicon" sensitive="true" />
  <tubs name="PTSQ" Rio_Z="27 28 1.034" profile="-5.625 5.625" unit_length="mm"
        material="Silicon" sensitive="true" />
  <tubs name="PTSR" Rio_Z="28 29 1.034" profile="-5.625 5.625" unit_length="mm"
        material="Silicon" sensitive="true" />
  <tubs name="PTSS" Rio_Z="29 30 1.034" profile="-5.625 5.625" unit_length="mm"
        material="Silicon" sensitive="true" />
  <tubs name="PTST" Rio_Z="30 31 1.034" profile="-5.625 5.625" unit_length="mm"
        material="Silicon" sensitive="true" />
  <tubs name="PTSU" Rio_Z="31 32 1.034" profile="-5.625 5.625" unit_length="mm"
        material="Silicon" sensitive="true" />
  <tubs name="PTSV" Rio_Z="32 33 1.034" profile="-5.625 5.625" unit_length="mm"
        material="Silicon" sensitive="true" />
  <tubs name="PTSW" Rio_Z="33 34 1.034" profile="-5.625 5.625" unit_length="mm"
        material="Silicon" sensitive="true" />
  <tubs name="PTSX" Rio_Z="34 35 1.034" profile="-5.625 5.625" unit_length="mm"
        material="Silicon" sensitive="true" />

  <tubs name="PTA1" Rio_Z="11 35 0.0006" material="Aluminum" unit_length="mm"
                    comment="called blank1, whatever that is" />
  <tubs name="PTA2" Rio_Z="11 35 0.0035" material="Silicon" unit_length="mm" 
                    comment="called blank2, whatever that is" />
  <tubs name="PTA3" Rio_Z="11 35 0.0015" material="Aluminum" unit_length="mm"
                    comment="called blank3, whatever that is" />
  <tubs name="PTA4" Rio_Z="11 35 0.0015" material="Aluminum" unit_length="mm"
                    comment="called blank4, whatever that is" />
  <tubs name="PTA5" Rio_Z="0.0 9.525 0.5" material="Vacuum" unit_length="mm"
                    comment="called blank5, whatever that is" />

  <composition name="tpolRecoilDetectorCard" envelope="PTCA">
     <posXYZ volume="tpolRecoilDetector" />
     <posXYZ volume="PTCH" />
  </composition>

  <pgon name="PTCA" segments="8" material="FR-4" unit_length="mm"
                   comment="card that carries the recoil polarimeter detector">
     <polyplane Rio_Z="0 60 -0.75" unit_length="mm" />
     <polyplane Rio_Z="0 60 0.75" unit_length="mm" />
  </pgon>
  <tubs name="PTCH" Rio_Z="0.0 11.0 1.5" material="Vacuum" unit_length="mm"
                   comment="central hole through the polarimeter card" />
  
  <tubs name="PTPB" Rio_Z="0.9375 1.0 2.0" material="Iron" unit_length="in"
                   comment="beam pipe to the upstream/downstream" />
  <tubs name="PTIB" Rio_Z="0.0 0.9375 2.0" material="Vacuum" unit_length="in"
                   comment="beam vacuum to the upstream/downstream" />
  <tubs name="PTPF" Rio_Z="1.9375 2.0 1.05" material="Iron" unit_length="in"
                   comment="feed pipe to the side" />
  <tubs name="PTIF" Rio_Z="0.0 1.9375 1.05" material="Vacuum" unit_length="in"
                   comment="feed vacuum to the side" />
  <tubs name="PTPT" Rio_Z="1.3125 1.375 2.0" material="Iron" unit_length="in"
                   comment="turbo pump port pipe" />
  <tubs name="PTIT" Rio_Z="0.0 1.3125 2.0" material="Vacuum" unit_length="in"
                   comment="turbo pump port vacuum" />
  <tubs name="PTPM" Rio_Z="1.3125 1.375 2.0" material="Iron" unit_length="in"
                   comment="motor port pipe" />
  <tubs name="PTIM" Rio_Z="0.0 1.3125 2.0" material="Vacuum" unit_length="in"
                   comment="motor port vacuum" />
  <tubs name="PTPX" Rio_Z="0.9375 1.0 2.0" material="Iron" unit_length="in"
                   comment="aux port pipe" />
  <tubs name="PTIX" Rio_Z="0.0 0.9375 2.0" material="Vacuum" unit_length="in"
                   comment="aux port vacuum" />
  <tubs name="PTFB" Rio_Z="1.0 1.6875 0.620" material="Iron" unit_length="in"
                   comment="beam pipe flange to the upstream/downstream" />
  <tubs name="PTFX" Rio_Z="1.0 1.6875 0.620" material="Iron" unit_length="in"
                   comment="aux port pipe flange" />
  <tubs name="PTFT" Rio_Z="1.375 2.250 0.680" material="Iron" unit_length="in"
                   comment="turbo pump port pipe flange" />
  <tubs name="PTFM" Rio_Z="1.375 2.250 0.680" material="Iron" unit_length="in"
                   comment="motor port pipe flange" />
  <tubs name="PTFF" Rio_Z="2.0 3.0 0.78" material="Iron" unit_length="in"
                   comment="feed pipe flange" />
  <tubs name="PTKX" Rio_Z="0.0 1.6875 0.5" material="Iron" unit_length="in"
                   comment="aux port pipe cap" />
  <tubs name="PTKM" Rio_Z="0.0 2.250 0.5" material="Iron" unit_length="in"
                   comment="motor port pipe cap" />
  <tubs name="PTKF" Rio_Z="0.0 3.0 0.5" material="Iron" unit_length="in"
                   comment="feed pipe cap" />

  <box name="PTMP" X_Y_Z="10.0 0.375 10.0" material="Aluminum" unit_length="in"
                   comment="mounting plate" />
  <box name="PTVR" X_Y_Z="6.0 0.51 0.25" material="Iron" unit_length="in"
                   comment="vertical rack piece" />
  <box name="PTHR" X_Y_Z="6.0 0.125 0.75" material="Iron" unit_length="in"
                   comment="horizontal rack piece" />
  <box name="PTBR" X_Y_Z="4.75 0.50 0.0625" material="Aluminum" unit_length="in"
                   comment="horizontal bar piece" />
  <box name="PTLG" X_Y_Z="0.5 7.987 0.125" material="Aluminum" unit_length="in"
                   comment="support leg" />
  <box name="PTVS" X_Y_Z="0.5 2.5 0.25" material="Aluminum" unit_length="in"
                   comment="vertical support piece" />
  <box name="PTHS" X_Y_Z="0.5 0.25 2.5" material="Aluminum" unit_length="in"
                   comment="horizontal support piece" />
  <box name="PTDR" X_Y_Z="1.0 15.0 17.0" material="Aluminum" unit_length="in"
                   comment="vacuum box door" />

  <!-- there is no mcfast model of the photon beamline -->

</section>

<!-- </HDDS> -->