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Commit 52ae8f40 authored by Maria Zurek's avatar Maria Zurek Committed by Sylvester Joosten
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Resolve "Change number of imaging layers in Barrel ECAL"

parent 20a71bdf
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......@@ -21,7 +21,7 @@
<constant name="EcalBarrel_FiberXSpacing" value="1.34*mm"/>
<constant name="EcalBarrel_FiberZSpacing" value="1.22*mm"/>
<constant name="EcalBarrel_SpaceBetween" value="0.1*mm"/>
<constant name="EcalBarrel_FiberChunkLayers_num" value = "15"/>
<constant name="EcalBarrel_FiberChunkLayers_num" value = "12"/>
<comment>
For Pb/SiFi (GlueX): X0 ~ 1.45 cm
For W/SiFi (sPHENIX): X0 ~ 0.7 cm (but different fiber orientation)
......@@ -31,6 +31,7 @@
<constant name="EcalBarrel_ModLength" value="0.5*m"/>
<constant name="EcalBarrel_ModWidth" value="0.5*m"/>
<constant name="EcalBarrel_AvailThickness" value="EcalBarrelEnvelope_thickness-EcalBarrel_Support_thickness"/>
<constant name="EcalBarrel_ImagingLayerThickness"
value="EcalBarrel_SiliconThickness
+ EcalBarrel_ElectronicsThickness
......@@ -43,16 +44,21 @@
+ EcalBarrel_CarbonThickness
+ EcalBarrel_LayerSpacing"/>
<constant name="EcalBarrelImagingLayers_nMax" value="6"/>
<constant name="EcalBarrelImagingLayers_nMax" value="9"/>
<constant name="EcalBarrelImagingLayers_num"
value="min(EcalBarrelImagingLayers_nMax,
floor(EcalBarrel_AvailThickness/
(EcalBarrel_ImagingLayerThickness+EcalBarrel_RadiatorThickness+EcalBarrel_SpaceBetween)))"/>
<constant name="EcalBarrel_FiberLayerThickness_max"
value="max(0, EcalBarrel_AvailThickness-
(EcalBarrelImagingLayers_num*EcalBarrel_ImagingLayerThickness))"/>
<constant name="EcalBarrel_FiberLayerThickness"
value="min(EcalBarrel_FiberLayerThickness_max, EcalBarrel_FiberZSpacing*13*15)"/>
floor((EcalBarrel_AvailThickness-EcalBarrel_ImagingLayerThickness)/
(EcalBarrel_ImagingLayerThickness + EcalBarrel_ScFiLayerThickness + EcalBarrel_SpaceBetween)))"/>
<constant name="EcalBarrel_ImagingPartThickness"
value="(EcalBarrelImagingLayers_num-1)*(EcalBarrel_ImagingLayerThickness + EcalBarrel_ScFiLayerThickness + EcalBarrel_SpaceBetween)
+ EcalBarrel_ImagingLayerThickness + EcalBarrel_SpaceBetween"/>
<constant name="EcalBarrel_ScFiPartThickness_max"
value="max(0, EcalBarrel_AvailThickness-EcalBarrel_ImagingPartThickness)"/>
<constant name="EcalBarrel_ScFiPartThickness"
value="min(EcalBarrel_ScFiPartThickness_max, EcalBarrel_FiberZSpacing*13*12)"/>
<constant name="EcalBarrel_SensitiveLayers_rmax"
value="EcalBarrel_rmin + EcalBarrel_ImagingPartThickness + EcalBarrel_ScFiPartThickness"/>
</define>
<limits>
......@@ -134,7 +140,7 @@
<layer repeat="EcalBarrel_FiberChunkLayers_num" vis="EcalBarrelLayerVis"
space_before="EcalBarrel_ImagingLayerThickness + EcalBarrel_SpaceBetween">
<slice material="Lead"
thickness="EcalBarrel_FiberLayerThickness/EcalBarrel_FiberChunkLayers_num"
thickness="EcalBarrel_ScFiPartThickness/EcalBarrel_FiberChunkLayers_num"
vis="EcalBarrelFiberLayerVis">
<fiber material="PlasticScint"
sensitive="yes"
......
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