Difference: GlaSiD (15 vs. 16)

Revision 162016-06-27 - AidanRobson

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META TOPICPARENT name="WebHome"

Glasgow SiD howto

The starting point is the sidloi3 model in lcgeo implemented by F. Gaede and based on the original sidloi3 compact file. This was tested by simulating single muons and reconstructing them (see lcgeo/example/run_sid_reco.xml).

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There is a 'getting started' guide at GlaSiDGettingStarted.
 

Building the model

The model is using the generic detector drivers in DD4hep. For the calorimeters (Ecal/Hcal) the current (Oct 2015) CLIC drivers were used in order to have the DDRec extensions that will eventually be needed by DDMarlinPandora.

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full-SiD.png
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full-SiD.png
  To compile, from the local lcgeo/ directory:
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source /cvmfs/sft.cern.ch/lcg/external/gcc/4.8.1/x86_64-slc6-gcc48-opt/setup.sh
export PATH=/cvmfs/sft.cern.ch/lcg/external/Python/2.7.4/x86_64-slc6-gcc48-opt/bin/:$PATH
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 source /cvmfs/sft.cern.ch/lcg/external/gcc/4.8.1/x86_64-slc6-gcc48-opt/setup.sh export PATH=/cvmfs/sft.cern.ch/lcg/external/Python/2.7.4/x86_64-slc6-gcc48-opt/bin/:$PATH export LD_LIBRARY_PATH=/cvmfs/sft.cern.ch/lcg/external/Python/2.7.4/x86_64-slc6-gcc48-opt/lib/:$LD_LIBRARY_PATH
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make -C build -j4 install
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make -C build -j4 install
  To check the geometry:
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source ../config_dd4hep.sh
source ../dd4hep/bin/thisdd4hep.sh
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 source ../config_dd4hep.sh source ../dd4hep/bin/thisdd4hep.sh source bin/thislcgeo.sh
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geoDisplay SiD/compact/sidloi3/sidloi3_v00.xml
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geoDisplay SiD/compact/sidloi3/sidloi3_v00.xml
  then from root prompt
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root [1] gGeoManager->CheckOverlaps(0.01);
Info in <TGeoNodeMatrix::CheckOverlaps>: Checking overlaps for world_volume and daughters within 0.01
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 root [1] gGeoManager->CheckOverlaps(0.01); Info in <TGeoNodeMatrix::CheckOverlaps>: Checking overlaps for world_volume and daughters within 0.01 Check overlaps: [==========] 129404 [100.00 %] 01
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Info in <TGeoNodeMatrix::CheckOverlaps>: Number of illegal overlaps/extrusions : 6
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Info in <TGeoNodeMatrix::CheckOverlaps>: Number of illegal overlaps/extrusions : 6
 

Checking simulation+reconstruction chain

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Checking simulation+reconstruction chain

From lcgeo:

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source /cvmfs/ilc.desy.de/sw/x86_64_gcc48_sl6/v01-17-07/Marlin/v01-06/build_env.sh
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Marlin example/run_sid_reco.xml
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Marlin example/run_sid_reco.xml
 

Implementing custom SiD ECal drivers

The initial implementations uses GenericCalBarrel_o1_v01 and GenericCalEndcap_o1_v01 drivers. The generic drivers will build the main detection volumes but will not include detailed structural components and/or subcomponents (e.g. stacks, towers, gaps, support elements).

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ecal.png
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ecal.png
  View with:
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geoDisplay SiD/compact/SiD_o1_v01/SiD_o1_v01.xml
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geoDisplay SiD/compact/SiD_o1_v01/SiD_o1_v01.xml
  Test with ECals only (other subdetectors commented in SiD_o1_v01.xml):
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root [0] gGeoManager->CheckOverlaps(0.01);
Info in <TGeoNodeMatrix::CheckOverlaps>: Checking overlaps for world_volume and daughters within 0.01
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 root [0] gGeoManager->CheckOverlaps(0.01); Info in <TGeoNodeMatrix::CheckOverlaps>: Checking overlaps for world_volume and daughters within 0.01 Check overlaps: [==========] 3039 [100.00 %] 00:00
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Info in <TGeoNodeMatrix::CheckOverlaps>: Number of illegal overlaps/extrusions : 0
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Info in <TGeoNodeMatrix::CheckOverlaps>: Number of illegal overlaps/extrusions : 0
  Note that general ECal parameters are defined in SiD_o1_v01.xml, e.g.
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<constant name="EcalBarrel_half_length" value="1765.0*mm" />
<constant name="EcalBarrel_rmin" value="1265.0*mm" />
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  etc., and used in EcalBarrel_o1_v01_00.xml.
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Adding HCal

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Using the naming convention explained above, we add HcalBarrel_o1_v01_00.xml and HcalEndcap_o1_v01_00.xml. We also need to edit SiD_o1_v01.xml to add general HCal parameters. See the result here. Checked for illegal overlaps or extrusions and found none.
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Using the naming convention explained above, we add HcalBarrel_o1_v01_00.xml and HcalEndcap_o1_v01_00.xml. We also need to edit SiD_o1_v01.xml to add general HCal parameters. See the result here. Checked for illegal overlaps or extrusions and found none.
 

Adding other subdetectors

Plugins and readouts are now included in the individual detector's XML descriptions to make the model more modular (i.e. so that one can comment out sub-detectors from SiD_o1_v01.xml, if necessary).

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Both LumiCal_o1_v01_00.xml and BeamCal_o1_v01_00.xl use DD4hep default drivers and some overlaps between the default envelopes have to be solved. See result here.
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Both LumiCal_o1_v01_00.xml and BeamCal_o1_v01_00.xl use DD4hep default drivers and some overlaps between the default envelopes have to be solved. See result here.
 Updated and tested MuonBarrel_o1_v01_00.xml, MuonEndcap_o1_v01_00.xml and Solenoid_o1_v01_00.xml were added (see table below).

The silicon trackers were updated and SiTrackerBarrel_o1_v01_00.xml and SiTrackerEndcap_o1_v01_00.xml were added to the SVN repo.

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AllSiTrackersLumiCal.png
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AllSiTrackersLumiCal.png
  This is work in progress - watch this wiki (and the SVN repo) for updates.
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StatusTable.png
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StatusTable.png
 

Troubleshooting

 
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