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Commit 2608ed0d authored by Sylvester Joosten's avatar Sylvester Joosten
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Resolve "Update silicon tracker stave material budget"

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1 merge request!130Resolve "Update silicon tracker stave material budget"
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compact/central_tracker.xml
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......@@ -12,27 +12,39 @@
Note: initial implementation with hard-coded values,
TODO: add parametrization
</comment>
<define>
----
Aug 04, 2021, Shujie Li
udpated stave material budget for the baseline design.
see https://eicweb.phy.anl.gov/EIC/detectors/athena/-/issues/63
ITS3 sensor thickness: 40um, pixel size: 10um (segmentation)
total X0 0.55% per layer:
0.4 mm aluminum ~ 0.44% X0.
2 x carbonfiber (RL ~ 25) 0.1 mm to match Si (RL~9) of 0.04mm
<constant name="TrackerBarrelSpaceFrame_width" value="4.0*cm"/>
<constant name="TrackerBarrelSpaceFrame_height" value="2.5*cm"/>
<constant name="TrackerSensor_thickness" value="0.03*mm"/>
<constant name="TrackerBarrel_thickness" value="0.55/100*9.37*cm"/>
<constant name="TrackerBarrelService_thickness" value="TrackerBarrel_thickness-TrackerSensor_thickness"/>
</comment>
<define>
<comment>
Layer_rOffset is used to add inside space so the _rmin value is the nominal sensor radius.
TrackerBarrelSpaceFrame_height must be smaller than {_rmin2 - _rmin1 - Layer_rOffset - 1mm - stave_thickness}
</comment>
<constant name="TrackerBarrelLayer_rOffset" value="0.5*cm"/>
<constant name="TrackerBarrelInner_rmin1" value="21.0*cm"/>
<constant name="TrackerBarrelInner_rmin2" value="TrackerBarrelInner_rmin1 + TrackerBarrelSpaceFrame_width"/>
<constant name="TrackerBarrelSpaceFrame_width" value="4.0*cm"/>
<constant name="TrackerBarrelSpaceFrame_height" value="1.0835*cm"/>
<constant name="TrackerSensor_thickness" value="0.04*mm"/>
<constant name="TrackerBarrelInner_rmin1" value="21.0*cm"/>
<constant name="TrackerBarrelInner_rmin2" value="22.68*cm"/>
<constant name="TrackerBarrelInner_length1" value="54.0*cm"/>
<constant name="TrackerBarrelInner_length2" value="60.0*cm"/>
<constant name="TrackerBarrelOuter_rmin1" value="39.3*cm"/>
<constant name="TrackerBarrelOuter_rmin2" value="TrackerBarrelOuter_rmin1 + TrackerBarrelSpaceFrame_width"/>
<constant name="TrackerBarrelOuter_rmin2" value="43.23*cm"/>
<constant name="TrackerBarrelOuter_length1" value="105.0*cm"/>
<constant name="TrackerBarrelOuter_length2" value="114.0*cm"/>
......@@ -46,8 +58,8 @@
<comment>
Here we are assuming the two endcaps (P and N) are symmetric.
</comment>
<constant name="TrackerEndcap_thickness" value="0.25/100*9.37*cm"/>
<constant name="TrackerEndcapService_thickness" value="TrackerEndcap_thickness-TrackerSensor_thickness"/>
<!-- <constant name="TrackerEndcap_thickness" value="0.24/100*9.37*cm"/> -->
<!-- <constant name="TrackerEndcapService_thickness" value="TrackerEndcap_thickness-TrackerSensor_thickness"/> -->
<constant name="TrackerEndcapInner_nLayers" value="1"/>
<constant name="TrackerEndcapOuter_nLayers" value="3"/>
......@@ -69,14 +81,14 @@
This is a limitation of ACTS geometry which will likely go away in the future.</comment>
<constant name="TrackerEndcapInner_rmin1" value="Beampipe_rmax+1.0*cm"/>
<constant name="TrackerEndcapInner_rmin2" value="Beampipe_rmax+1.0*cm"/>
<!-- <constant name="TrackerEndcapInner_rmin2" value="Beampipe_rmax+1.0*cm"/> -->
<constant name="TrackerEndcapOuter_rmin1" value="3.18*cm + 1.2*cm * 1"/>
<constant name="TrackerEndcapOuter_rmin2" value="3.18*cm + 1.2*cm * 1"/>
<constant name="TrackerEndcapOuter_rmin3" value="3.18*cm + 1.2*cm * 2"/>
<constant name="TrackerEndcapInner_rmax1" value="TrackerBarrelOuter_rmin1-5.0*mm"/>
<constant name="TrackerEndcapInner_rmax2" value="TrackerBarrelOuter_rmin1-5.0*mm"/>
<!-- <constant name="TrackerEndcapInner_rmax2" value="TrackerBarrelOuter_rmin1-5.0*mm"/> -->
<constant name="TrackerEndcapOuter_rmax1" value="43.23*cm"/>
<constant name="TrackerEndcapOuter_rmax2" value="43.23*cm"/>
......@@ -124,7 +136,7 @@
insideTrackingVolume="true">
<dimensions
rmin="TrackerBarrelInner_rmin1-TrackerBarrelLayer_rOffset"
rmax="TrackerBarrelInner_rmin2-TrackerBarrelLayer_rOffset + TrackerBarrelInner_thickness"
rmax="TrackerBarrelInner_rmin2-TrackerBarrelLayer_rOffset + TrackerBarrelInner_thickness"
length="TrackerBarrelInner_length"/>
<comment>
Tracker Barrel Modules
......@@ -135,15 +147,13 @@
height="TrackerBarrelSpaceFrame_height"
length="TrackerBarrelInner_length1"
thickness="0.1*mm" />
<module_component name="peek1" material="PEEK" sensitive="false"
width="TrackerBarrelSpaceFrame_width" length="TrackerBarrelInner_length1-4*mm" thickness="2.0*mm" />
<module_component name="aluminum1" material="Aluminum" sensitive="false"
width="TrackerBarrelSpaceFrame_width" length="TrackerBarrelInner_length1-4*mm" thickness="0.4*mm" />
<module_component name="silicon"
width="TrackerBarrelSpaceFrame_width"
length="TrackerBarrelInner_length1-5*mm" thickness="0.05*mm" material="Silicon" sensitive="true">
length="TrackerBarrelInner_length1-5*mm" thickness="TrackerSensor_thickness" material="Silicon" sensitive="true">
<!--position z="-0.025*mm" y="0*mm"/-->
</module_component>
<module_component name="peek1" material="PEEK" sensitive="false"
width="TrackerBarrelSpaceFrame_width" length="TrackerBarrelInner_length1-6*mm" thickness="2.0*mm" />
</module>
<module name="TrackerBarrelInner_Module2" vis="TrackerModuleVis">
<frame material="CarbonFiber_25percent" vis="TrackerSupportVis"
......@@ -151,15 +161,13 @@
height="TrackerBarrelSpaceFrame_height"
length="TrackerBarrelInner_length2"
thickness="0.1*mm" />
<module_component name="peek1" material="PEEK" sensitive="false"
width="TrackerBarrelSpaceFrame_width" length="TrackerBarrelInner_length2-4*mm" thickness="2.0*mm" />
<module_component name="aluminum1" material="Aluminum" sensitive="false"
width="TrackerBarrelSpaceFrame_width" length="TrackerBarrelInner_length2-4*mm" thickness="0.4*mm" />
<module_component name="silicon"
width="TrackerBarrelSpaceFrame_width"
length="TrackerBarrelInner_length2-5*mm" thickness="0.05*mm" material="Silicon" sensitive="true">
length="TrackerBarrelInner_length2-5*mm" thickness="TrackerSensor_thickness" material="Silicon" sensitive="true">
<!--position z="-0.025*mm" y="0*mm"/-->
</module_component>
<module_component name="peek1" material="PEEK" sensitive="false"
width="TrackerBarrelSpaceFrame_width" length="TrackerBarrelInner_length2-6*mm" thickness="2.0*mm" />
</module>
<comment>
Tracker Barrel Inner Layers
......@@ -197,7 +205,7 @@
<layer id="1">
<envelope vis="AnlRed"
rmin="TrackerEndcapInner_rmin1"
rmax="TrackerEndcapInner_rmax2"
rmax="TrackerEndcapInner_rmax1"
length="TrackerEndcapInnerLayer_dz"
zstart="TrackerEndcapInner_zmin" />
<ring vis="AnlRed"
......@@ -222,7 +230,7 @@
<layer id="1">
<envelope vis="AnlRed"
rmin="TrackerEndcapInner_rmin1"
rmax="TrackerEndcapInner_rmax2"
rmax="TrackerEndcapInner_rmax1"
length="TrackerEndcapInnerLayer_dz"
zstart="TrackerEndcapInner_zmin" />
<ring vis="AnlRed"
......@@ -256,15 +264,13 @@
height="TrackerBarrelSpaceFrame_height"
length="TrackerBarrelOuter_length1"
thickness="0.1*mm" />
<module_component name="peek1" material="PEEK" sensitive="false"
width="TrackerBarrelSpaceFrame_width" length="TrackerBarrelOuter_length1-0.1*mm" thickness="2.0*mm" />
<module_component name="aluminum1" material="Aluminum" sensitive="false"
width="TrackerBarrelSpaceFrame_width" length="TrackerBarrelOuter_length1-0.1*mm" thickness="0.40*mm" />
<module_component name="silicon"
width="TrackerBarrelSpaceFrame_width"
length="TrackerBarrelOuter_length1-0.1*mm"
thickness="0.05*mm" material="Silicon" sensitive="true">
thickness="TrackerSensor_thickness" material="Silicon" sensitive="true">
</module_component>
<module_component name="peek2" material="PEEK" sensitive="false"
width="TrackerBarrelSpaceFrame_width" length="TrackerBarrelOuter_length1-0.1*mm" thickness="2.0*mm" />
</module>
<module name="TrackerBarrelOuter_Module2" vis="PurpleVis">
<frame material="CarbonFiber_25percent" vis="BlueGreenVis"
......@@ -272,15 +278,13 @@
height="TrackerBarrelSpaceFrame_height"
length="TrackerBarrelOuter_length2"
thickness="0.1*mm" />
<module_component name="peek1" material="PEEK" sensitive="false"
width="TrackerBarrelSpaceFrame_width" length="TrackerBarrelOuter_length2-0.1*mm" thickness="2.0*mm" />
<module_component name="aluminum1" material="Aluminum" sensitive="false"
width="TrackerBarrelSpaceFrame_width" length="TrackerBarrelOuter_length2-0.1*mm" thickness="0.40*mm" />
<module_component name="silicon"
width="TrackerBarrelSpaceFrame_width"
length="TrackerBarrelOuter_length1-0.1*mm"
thickness="0.05*mm" material="Silicon" sensitive="true">
thickness="TrackerSensor_thickness" material="Silicon" sensitive="true">
</module_component>
<module_component name="peek2" material="PEEK" sensitive="false"
width="TrackerBarrelSpaceFrame_width" length="TrackerBarrelOuter_length1-0.1*mm" thickness="2.0*mm" />
</module>
<comment>
Tracker Barrel Inner Layers
......@@ -421,12 +425,14 @@
<readouts>
<readout name="TrackerBarrelHits">
<segmentation type="CartesianGridXY" grid_size_x="0.150*mm" grid_size_y="0.150*mm" />
<segmentation type="CartesianGridXY" grid_size_x="0.010*mm" grid_size_y="0.010*mm" />
<id>system:8,barrel:2,layer:4,module:12,sensor:2,x:32:-16,y:-16</id>
</readout>
<readout name="TrackerEndcapHits">
<segmentation type="CartesianGridXZ" grid_size_x="0.20*mm" grid_size_z="0.20*mm" />
<segmentation type="CartesianGridXZ" grid_size_x="0.010*mm" grid_size_z="0.010*mm" />
<id>system:8,barrel:2,layer:4,module:12,sensor:2,x:32:-16,z:-16</id>
</readout>
</readouts>
......
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