#meta full request: /GEOMETRY/ComptonEMcal_HDDS.xml:990001:mc_JEF:2022-08-03_18-57-30
#meta variation: mc_JEF
#meta created: 2022-08-03 18:57:30
#meta run range: 990001 - 990001
#meta author: ijaegle

#large ccal only

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

  Hall D Geometry Data Base: Forward EM calorimeter
  **************************************************

     version 1.0: Initial version	-rtj
     version 2.0: Changes by A.Somov
       - change the calorimeter size to 10x10 blocks
       - change Z-position of the CCAL
       - add PWO material
     version 3.0: Adjustments for PrimEx - A.S.
       - ahange the size of the calorimeter to 12x12 blocks
       - add absorber


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

<section name        = "ComptonEMcal"
         version     = "1.0"
         date        = "2010-04-17"
         author      = "P. Ambrozewicz"
         top_volume  = "CCAL"
         specification = "v1.0">

<!-- Origin of ComptonEMcal is center of upstream face of LTD (Lead Tungstate Detector) -->

  <composition name="ComptonEMcal">
    <apply region="nullBfield"/>
    <posXYZ volume="comptonEMcal" X_Y_Z="0.0  0.0  10.0" />
  </composition>

  <composition name="comptonEMcal" envelope="CCAL">
    <posXYZ volume="Absorber" X_Y_Z="0.0   0.0  -13.03" />
    <posXYZ volume="LTDlower" X_Y_Z="0.0  -7.0   0.0" />
    <posXYZ volume="LTDeast" X_Y_Z="-7.0   0.0   0.0" />
    <posXYZ volume="LTDwest" X_Y_Z="+7.0   0.0   0.0" />
    <posXYZ volume="LTDupper" X_Y_Z="0.0  +7.0   0.0" /> 
  </composition> 
  
  <composition name="Absorber" envelope="ABDO">
    <posXYZ volume="ABSI" X_Y_Z="0.0 0.0 0.0"/>
  </composition>

  <box name="ABDO" X_Y_Z="8.315  8.315  6.05" material="Tungsten" />
  <tubs name="ABSI" Rio_Z="0  1.86   6.05" material="Air" />



  <composition name="LTDlower" envelope="LTDB">
    <mposY volume="LTDfullRow" ncopy="20" Z_X="0.0 0.0" Y0="-19.0" dY="2.0">
      <row value="0" step="1" />
    </mposY>
  </composition>
  

  <composition name="LTDupper" envelope="LTDT">
    <mposY volume="LTDfullRow" ncopy="20" Z_X="0.0 0.0" Y0="-19.0" dY="2.0">
      <row value="7" step="1" />
    </mposY>
  </composition>
  
  
 <composition name="LTDwest" envelope="LTDW">
    <mposY volume="LTDhalfRowWest" ncopy="2" Y0="-1.0" dY="2.0">
      <row value="5 " step="1" />
    </mposY>
  </composition>
  


  <composition name="LTDeast" envelope="LTDE">
    <mposY volume="LTDhalfRowEast" ncopy="2" Y0="-1.0" dY="2.0">
      <row value="5" step="1" />
    </mposY>
  </composition>




  <composition name="LTDfullRow">
    <mposX volume="LTBL" ncopy="48" Y_Z="0.0 0.0" X0="-47.0" dX="2.0">
      <column value="0" step="1" />
    </mposX>
  </composition>




  
  <composition name="LTDhalfRowWest">
    <mposX volume="LTBL" ncopy="21" Y_Z="0.0 0.0" X0="-20.0" dX="2.0">
      <column value="7" step="1" />
    </mposX>
  </composition> 
  
  
  <composition name="LTDhalfRowEast">
    <mposX volume="LTBL" ncopy="21" Y_Z="0.0 0.0" X0="-20.0" dX="2.0">
      <column value="0" step="1" />
    </mposX>
  </composition>    
  




  <box name="CCAL" X_Y_Z="96.0  96.0  34.0"  material="Air"
       comment="Compton EMcal mother" />


  <box name="LTDB" X_Y_Z="96.0  40.0  20.0"  material="Air"
       comment="LTD bottom section"   />

  <box name="LTDT" X_Y_Z="96.0  40.0  20.0"  material="Air"
       comment="LTD top section"      />

  <box name="LTDW" X_Y_Z="40.0   4.0  20.0"  material="Air"
       comment="LTD west section"     />

  <box name="LTDE" X_Y_Z="40.0   4.0  20.0"  material="Air"
       comment="LTD east section"    />



  <box name="LTBL" X_Y_Z="  2.0    2.0  20.0"  material="PWO"
       sensitive="true"	 comment="lead tungstate block"     />


  <!-- The following elements describe an early rendition of the GlueX
       detector simulated using a fast Monte Carlo program MCFast.  They
       are retained for future reference, do not rely on their values. -->

<!--  <parameters name="forwardEMcal_pars" type="mcfast">
    <real_array	name="xlimit"	comment="xmin  xmax limits of box"
				values="-106.0  106.0"
				unit="cm"	/>
    <real_array	name="ylimit"	comment="ymin  ymax limits of box"
				values="-106.0  106.0"
				unit="cm"	/>
    <real_array	name="xlimit_gap" comment="xmin  xmax of beam hole aperture"
				values="   -6.0   6.0"
				unit="cm"	/>
    <real_array	name="ylimit_gap" comment="ymin  ymax of beam hole aperture"
				values="   -6.0   6.0"
				unit="cm"	/>
    <real	name="z0"	value="620.07"	comment="z of midplane"
				unit="cm"	/>
    <real	name="zlen"	value="18.0"	comment="length of blocks"
				unit="cm"	/>
    <reference	name="material"	value="leadGlassF800" />
    <reference	name="active"	value="leadGlassF800" />
    <int	name="ncr1"	value="58"	comment="x segmentation"     />
    <int	name="ncr2"	value="58"	comment="y segmentation"     />
    <int	name="nlayers"	value="1"	comment="z segmentation"     />
    <real	name="siga_em"	value="0.06"	comment="root-E coefficient"
				unit="cm"	/>
    <real	name="sigb_em"	value="0.01"	comment="floor term"
				unit="cm"	/>
    <real	name="siga_had"	value="0.0"	comment="root-E coefficient"
				unit="cm"	/>
    <real	name="sigb_had"	value="0.0"	comment="floor term"
				unit="cm"	/>
    <real	name="em_had_ratio" value="4.0"	comment="response ratio"
				unit="cm"	/>
  </parameters>
-->
<!-- The forward calorimeter is hard coded into HDFast at present

  <mcfast model="CalorBox" template="db/calorbox.db"
                           parameters="forwardEMcal_pars">
    <string	name="name"	value="CCAL"
    <string	name="shape"	value="BOX"
    <int	name="type"	value="2"
  </mcfast>
-->

</section>

<!-- </HDDS> -->