CLD_o2_v05: BeamPipe: use variables for central chamber thicknesses

key4hep · Aug 23, 2023 · 6931c17 · 6931c17
1 parent 5f411b2
commit 6931c17
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Showing 2 changed files with 10 additions and 6 deletions.
diff --git a/FCCee/CLD/compact/CLD_o2_v05/Beampipe_o4_v05.xml b/FCCee/CLD/compact/CLD_o2_v05/Beampipe_o4_v05.xml
@@ -36,11 +36,11 @@
             <envelope vis="BlueVis">
                 <shape type="Assembly"/>
             </envelope>
-
-            <section type="Center" start="0*mm"                  end="CentralBeamPipe_zmax" rMin1="CentralBeamPipe_rmax"          rMin2="CentralBeamPipe_rmax"         rMax1="CentralBeamPipe_rmax+0.35*mm"                rMax2="CentralBeamPipe_rmax+0.35*mm"             material="AlBeMet162"    name="VertexInnerAlb" />
-            <section type="Center" start="0*mm"                  end="CentralBeamPipe_zmax" rMin1="CentralBeamPipe_rmax+0.35*mm"  rMin2="CentralBeamPipe_rmax+0.35*mm" rMax1="CentralBeamPipe_rmax+1.35*mm"                rMax2="CentralBeamPipe_rmax+1.35*mm"             material="LiquidNDecane" name="VertexParaffin" />
-            <section type="Center" start="0*mm"                  end="CentralBeamPipe_zmax" rMin1="CentralBeamPipe_rmax+1.35*mm"  rMin2="CentralBeamPipe_rmax+1.35*mm" rMax1="CentralBeamPipe_rmax+1.70*mm"                rMax2="CentralBeamPipe_rmax+1.70*mm"             material="AlBeMet162"    name="VertexOuterAlb" />
-            <section type="Center" start="CentralBeamPipe_zmax"  end="SeparatedBeamPipe_z"  rMin1="CentralBeamPipe_rmax"          rMin2="ConeBeamPipe_Rmax"            rMax1="CentralBeamPipe_rmax+BeamPipeWidthFirstCone" rMax2="ConeBeamPipe_Rmax+BeamPipeWidthFirstCone" material="Beryllium"     name="AlBeMet162" />
+            <!-- central section made of two walls of 0.35 mm albemet and liquid paraffin in the middle -->
+            <section type="Center" start="0*mm"                  end="CentralBeamPipe_zmax" rMin1="CentralBeamPipe_rmax"                  rMin2="CentralBeamPipe_rmax"                 rMax1="CentralBeamPipe_rmax+BPWWall"                rMax2="CentralBeamPipe_rmax+BPWWall"             material="AlBeMet162"    name="VertexInnerAlb" />
+            <section type="Center" start="0*mm"                  end="CentralBeamPipe_zmax" rMin1="CentralBeamPipe_rmax+BPWWall"          rMin2="CentralBeamPipe_rmax+BPWWall"         rMax1="CentralBeamPipe_rmax+BPWWall+BPWCool"        rMax2="CentralBeamPipe_rmax+BPWWall+BPWCool"     material="LiquidNDecane" name="VertexParaffin" />
+            <section type="Center" start="0*mm"                  end="CentralBeamPipe_zmax" rMin1="CentralBeamPipe_rmax+BPWWall+BPWCool"  rMin2="CentralBeamPipe_rmax+BPWWall+BPWCool" rMax1="CentralBeamPipe_rmax+2*BPWWall+BPWCool"      rMax2="CentralBeamPipe_rmax+2*BPWWall+BPWCool"   material="AlBeMet162"    name="VertexOuterAlb" />
+            <section type="Center" start="CentralBeamPipe_zmax"  end="SeparatedBeamPipe_z"  rMin1="CentralBeamPipe_rmax"                  rMin2="ConeBeamPipe_Rmax"                    rMax1="CentralBeamPipe_rmax+BeamPipeWidthFirstCone" rMax2="ConeBeamPipe_Rmax+BeamPipeWidthFirstCone" material="Beryllium"     name="AlBeMet162" />
 
         </detector>
 

diff --git a/FCCee/CLD/compact/CLD_o2_v05/CLD_o2_v05.xml b/FCCee/CLD/compact/CLD_o2_v05/CLD_o2_v05.xml
@@ -56,7 +56,11 @@
 
         <constant name="DetID_HOMAbsorber"          value=" 19"/>
 
-        <constant name="BeamPipeWidth"   	value="1.7*mm" />
+        <!-- BPW: Beam Pipe Width -->
+        <constant name="BPWWall"       value="0.35*mm" />
+        <constant name="BPWCool"       value="1.0*mm" />
+        <constant name="BeamPipeWidth" value="2.0*BPWWall + BPWCool"/>
+
 	<constant name="BeamPipeWidthFirstCone" value="2.0*mm" />
         <!-- this is the inner length of the longer elipse axis -->
 	<constant name="ConeBeamPipe_Rmax" value="28.9*mm" />