A Geant4 simulation of the 2020 Dual-Readout em-sized tubes prototype beam tests.

The project targets a standalone Geant4 simulation of the Dual-Readout tubes-based calorimeter prototype beam tests. We plan to perform Geant4 regression testing, physics lists comparison and validation against test-beam data.

• Start date: 7 July 2021.

• (CERN EP-SFT) Lorenzo Pezzotti ([email protected]), Alberto Ribon (Supervisor)
• (University of Pavia and INFN Pavia) Andrea Pareti, Gabriella Gaudio

• Dual-Readout Calorimetry Meeting 19/11/2021, Results from the CERN TB Geant4 simulation
• Dual-Readout Calorimetry Meeting 13/10/2021, Status of 2021 Test Beam(s) SW
• Dual-Readout Calorimetry Meeting 21/7/2021, DREMTubes: A Geant4 simulation of the DR tubes prototype 2021 beam tests

Note: the test-beam simulated platform can be shifted in x and y directions as in the actual configuration. The platform can also rotate around its center (the horizontal rotation). The housing containing the calorimeter can the lifted up from its back side creating a spin around its front face (the vertical rotation). By default, such parameters are set to zero. They are configurable via the UI macro card before the run is initialized as:

/tbgeo/xshift <> [<Unit>]
/tbgeo/yshift <> [<Unit>]
/tbgeo/horizrot <> [<Unit>]
/tbgeo/vertrot <> [<Unit>]

1. git clone the repo

   git clone https://github.com/DRCalo/HidraSim.git

2. source Geant4 env

   source /relative_path_to/geant4-v11.3.1-install/bin/geant4.sh

3. cmake build directory and make (using geant4-v11.3.1)

   mkdir build; cd build/
   cmake -DGeant4_DIR=/absolute_path_to/geant4-v11.3.1-install/lib64/Geant4-11.3.1/ relative_path_to/DREMTubes/
   make

4. execute (example with DREMTubes_run.mac macro card, 2 thread, FTFP_BERT physics list and no optical propagation)

   ./DREMTubes -m DREMTubes_run.mac -t 2 -pl FTFP_BERT

Parser options

• -m macro.mac: pass a Geant4 macro card (example -m DREMTubes_run.mac available in source directory and automatically copied in build directory)
• -t integer: pass number of threads for multi-thread execution (example -t 3, default t=2)
• -pl Physics_List: select Geant4 physics list (example -pl FTFP_BERT)
• -opt FullOptic: boolean variable to switch on (true) the optical photon propagation in fibers (example -opt true, default false) -> NOTE: Not available any longer

1. git clone the repo

   git clone git clone https://github.com/DRCalo/HidraSim.git

2. cmake, build directory and make (using geant4-v11.3.1, check for gcc and cmake dependencies for other versions)

   mkdir build; cd build/
   source /cvmfs/sft.cern.ch/lcg/views/LCG_106b/x86_64-el9-gcc11-opt/setup.sh
   cmake3 -DGeant4_DIR=/cvmfs/geant4.cern.ch/geant4/11.3/x86_64-el9-gcc11-optdeb-MT/lib64/Geant4-11.3.0/ ../
   make (-jN)

3. execute (example with DREMTubes_run.mac macro card, 2 threads and FTFP_BERT physics list)

   ./DREMTubes -m DREMTubes_run.mac -t 2 -pl FTFP_BERT

1. git clone the repo

   git clone https://github.com/lopezzot/DREMTubes.git

2. prepare execution files (example with Geant4.10.07_p01, DREMTubes_run.mac, 2 threads, FTFP_BERT physics list)

   mkdir DREMTubes-build; cd DREMTubes-build
   mkdir error log output
   cp ../../DREMTubes/scripts/DREMTubes_lxplus_10.7.p01.sh .
   source DREMTubes_lxplus_10.7.p01.sh

3. prepare for HTCondor submission (example with Geant4.10.07_p01, DREMTubes_run.mac, 2 threads, FTFP_BERT physics list)

   cp ../../DREMTubes/scripts/DREMTubes_HTCondor_10.7.p01.sh .
   export MYHOME=`pwd`
   echo cd $MYHOME >> DREMTubes_HTCondor_10.7.p01.sh
   echo $MYHOME/DREMTubes -m $MYHOME/DREMTubes_run.mac -t 2 >> DREMTubes_HTCondor_10.7.p01.sh
   cp ../../DREMTubes/scripts/DREMTubes_HTCondor.sub .
   sed -i '1 i executable = DREMTubes_HTCondor_10.7.p01.sh' DREMTubes_HTCondor.sub

4. submit a job

   condor_submit DREMTubes_HTCondor.sub 

5. monitor the job

   condor_q

   or (for persistency)

   condor_wait -status log/*.log

Here is my standard Geant4 installation (example with Geant4.10.7.p01) starting from the unpacked geant4.10.07.tar.gz file under the example path "path/to".

1. create build directory alongside source files

   cd /path/to
   mkdir geant4.10.07-build
   cd geant4.10.07-build

2. link libraries with CMAKE (example with my favourite libraries)

   cmake -DCMAKE_INSTALL_PREFIX=/Users/lorenzo/myG4/geant4.10.07_p01-install \
   -DGEANT4_INSTALL_DATA=ON -DGEANT4_USE_QT=ON -DGEANT4_BUILD_MULTITHREADED=ON \
   -DGEANT4_USE_GDML=ON ../geant4.10.07.p01

3. make it

   make -jN
   make install