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ComptonEMcal_HDDS.xml
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<?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
version 4.0: - A.S.
- change the crystal size, PWO size 20.55 mm
- module assembly size: 20.9 mm, average size according
to survey group. Currently assyme Tedlar as a wrapping
material.
We will need to add positions of each individual module
<HDDS specification="v1.0" xmlns="http://www.gluex.org/hdds">
-->
<section name = "ComptonEMcal"
version = "1.0"
date = "2018-12-05"
author = "A. Somov"
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 -7.315 0.0" />
<posXYZ volume="LTDeast" X_Y_Z="-7.315 0.0 0.0" />
<posXYZ volume="LTDwest" X_Y_Z="+7.315 0.0 0.0" />
<posXYZ volume="LTDupper" X_Y_Z="0.0 +7.315 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="5" Z_X="0.0 0.0" Y0="-4.18" dY="2.09">
<row value="0" step="1" />
</mposY>
</composition>
<composition name="LTDupper" envelope="LTDT">
<mposY volume="LTDfullRow" ncopy="5" Z_X="0.0 0.0" Y0="-4.18" dY="2.09">
<row value="7" step="1" />
</mposY>
</composition>
<composition name="LTDwest" envelope="LTDW">
<mposY volume="LTDhalfRowWest" ncopy="2" Y0="-1.045" dY="2.09">
<row value="5 " step="1" />
</mposY>
</composition>
<composition name="LTDeast" envelope="LTDE">
<mposY volume="LTDhalfRowEast" ncopy="2" Y0="-1.045" dY="2.09">
<row value="5" step="1" />
</mposY>
</composition>
<composition name="LTDfullRow">
<mposX volume="Module" ncopy="12" Y_Z="0.0 0.0" X0="-11.495" dX="2.09">
<column value="0" step="1" />
</mposX>
</composition>
<composition name="LTDhalfRowWest">
<mposX volume="Module" ncopy="5" Y_Z="0.0 0.0" X0="-4.18" dX="2.09">
<column value="7" step="1" />
</mposX>
</composition>
<composition name="LTDhalfRowEast">
<mposX volume="Module" ncopy="5" Y_Z="0.0 0.0" X0="-4.18" dX="2.09">
<column value="0" step="1" />
</mposX>
</composition>
<box name="CCAL" X_Y_Z="25.08 25.08 34.0" material="Air"
comment="Compton EMcal mother" />
<box name="LTDB" X_Y_Z="25.08 10.45 20.0" material="Air"
comment="LTD bottom section" />
<box name="LTDT" X_Y_Z="25.08 10.45 20.0" material="Air"
comment="LTD top section" />
<box name="LTDW" X_Y_Z="10.45 4.18 20.0" material="Air"
comment="LTD west section" />
<box name="LTDE" X_Y_Z="10.45 4.18 20.0" material="Air"
comment="LTD east section" />
<composition name="Module" envelope="LTMD">
<posXYZ volume="LTBL" X_Y_Z="0.0 0.0 0.0"/>
</composition>
<box name="LTMD" X_Y_Z=" 2.09 2.09 20.0" material="Tedlar"
comment="lead tungstate module assembly" />
<box name="LTBL" X_Y_Z=" 2.055 2.055 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> -->