WIP: Sphenix v0.13.00

This is a MR that enables support for the sPhenix detector based on the TGeo geometry description.

Running the Geometry building test

The 'MVTX' detector is built executing the command:

ACTFWTGeoGeometryExample -n1 -l0 --geo-tgeo-filename=sPhenix.root --geo-tgeo-worldvolume="World" --geo-tgeo-nlayers=0 --geo-tgeo-clayers=1 --geo-tgeo-players=0  --geo-tgeo-clayernames=MVTX --geo-tgeo-cmodulenames MVTXSensor --geo-tgeo-cmoduleaxes=xzy --geo-tgeo-clayersplits 5. --geo-subdetectors MVTX --output-obj true

The options are:

• -n1 -l0 : one event verbose screen output output
• --geo-tgeo-filename=sPhenix.root : the root file containing the geometry
• --geo-tgeo-worldvolume="World" : defining the top volume
• --geo-tgeo-nlayers=0 --geo-tgeo-clayers=1 --geo-tgeo-players=0: only look for central layers
• --geo-tgeo-clayernames=MVTX --geo-tgeo-cmodulenames MVTXSensor: find all MVTXSensor nodes
• --geo-tgeo-cmoduleaxes=xzy : axis orientation wrt ROOT vs Acts for modules
• --geo-tgeo-clayersplits 5. : sort modules that are separated by more than 5mm in different layers
• --geo-subdetectors MVTX --output-obj true : name the layer and output an associated obj file

This job should create a MVTX.obj file as attached:

Adding the Silicon detector (same procedure as above):

ACTFWTGeoGeometryExample -n1 -l0 --geo-tgeo-filename=sPhenix.root --geo-tgeo-worldvolume="World"  --geo-subdetectors MVTX Silicon --geo-tgeo-nlayers=0 0 --geo-tgeo-clayers=1 1 --geo-tgeo-players=0 0 --geo-tgeo-clayernames=MVTX siactive --geo-tgeo-cmodulenames MVTXSensor siactive --geo-tgeo-cmoduleaxes=xzy yzx --geo-tgeo-clayersplits 5. 15. --output-obj true

Running the propagation through the detector

This test is running 100 events multithreaded with 1000 test propagations through a magnetic field of B = (0,0,2T).

 ./bin/ACTFWTGeoPropagationExample -n100   --geo-tgeo-filename=sPhenix.root --geo-tgeo-worldvolume="World"  --geo-subdetectors MVTX Silicon --geo-tgeo-nlayers=0 0 --geo-tgeo-clayers=1 1 --geo-tgeo-players=0 0 --geo-tgeo-clayernames=MVTX siactive --geo-tgeo-cmodulenames MVTXSensor siactive --geo-tgeo-cmoduleaxes=xzy yzx --geo-tgeo-clayersplits 5. 10. --output-root true --prop-pt-range 0.1 10  --bf-values 0 0 2

The output produces a ROOT file with all propagation steps:

Restricting to only sensitive shows:

Creating Material Maps

First export the ROOT TGeo geometry to gdml

root[1] TGeoManager::Import("sPhenix.root")
root[2] gGeoManager->Export("sPhenix.gdml");

Now run the ACTFWGeantinoRecordingExample with this input.

 ./bin/ACTFWGeantinoRecordingExample -n 100 --g4-gdml-input sPhenix.gdml --output-root true  -j1

That records the Geant4 material (in this case with 100x100 tracks) in a file: