Geant4-TAU-SAT

2.10.23 Changelog (Alex)

Sim geometry update, 2 pmts were placed in a different way (glass forward, pmt backworkd / vice versa. Verify what is correct?) The direction of PMT saving is TOP-RIGHT(+,+), TOP-LEFT(-,+), BOTTOM-LEFT(-,-), BOTTOM-RIGHT(+,-). See SimMainVolume.cc This affected the weird translation of geant pmt id to the array index. See SimEventAction.cc for this abomination.

Sim compiled statically with geant4, for speed improvement (hopefully) Files changed: run_data_threads.py data_service.py run_script_Cosmic_Ray_Sim.py SimMainVolume.cc SimRunAction.cc

Need to change: Make Geant4 world smaller (the system + 10-15 cm)

Update of 2022 - Aviv and Amir - The real COTS-Capsule## Compile

Create a new build folder: mkdir build
Change dir to new folder: cd build
Run:
cmake -DGeant4_DIR=/cvmfs/geant4.cern.ch/geant4/10.5/x86_64-slc6-gcc63-opt-MT/lib64/Geant4-10.5.0 ../build
in build folder, where -DGeant4_DIR is the path to Geant4 installation folder in current OS
In the new build folder, run:
make

Run

Run ./Sim for UI simulation run.
Run ./Sim *input.txt* to run batch.

To run using our script:
make_data.py would create a batch of current run parameters.
run_data.py/run_data_threads.py would run the entire batch:

• run_data.py --run would run the batch and save Geant4 results to a file
• run_data.py --parse would gather all previous run data to a single csv file for data analysis.

make_data.py

run command: python make_data.py [save_path] [input_json_path]

• save_path - where to create the directory containing each simulation case. input . for current run directory.

• input_json_path - path to json file containing simulation cases to create. for example: (example.json)

  {
  "energies": [
      0.5, 0.64, 0.82, 1.06, 1.35, 1.74, 2.23, 2.86, 3.67, 4.71, 6.04, 7.74, 9.94, 12.75, 16.35, 20.98, 26.91, 34.52, 44.29, 56.82, 72.89, 93.51, 119.96, 153.89, 197.42, 253.27, 324.91, 416.82, 534.72, 685.98, 880.03, 1128.97, 1448.33, 1858.02, 2383.61, 3057.88, 3922.87, 5032.56, 6456.14, 8282.42, 10625.31, 13630.94, 17486.79, 22433.36, 28779.19, 36920.1, 47363.87, 60761.91, 77949.93, 100000.0
  ],
  "positions": [
      [
          0, 0, -4
      ]
  ],
  "directions": [
      [
          0, 0, 1
      ]
  ],
  "particles": [
      "mu+", "e-", "proton", "mu-", "e+", "ion"
  ],
  "ions": [
      [
          2, 4, 2
      ],
      [
          6, 12, 6
      ],
      [
          8, 16, 8
      ],
      [
          26, 52, 26
      ]
  ],
  "beamOn": 10
  }

  • energies - initial energy of the particle.
  • positions - position of the particle gun.
  • directions - direction of the particle gun.
  • particles - types of particles to simulate.
  • ions - types of ion to simulate (relevant if ion is included in particles)
  • beamOn - how many simulations of each case.

Using the example.json and the current directory for output:
python make_data.py . ./example.json

run_data.py / run_data_threads.py

We recommend using run_data_threads.py to utilize multi-threaded runs.\

Run command: python run_data_threads.py -j[number of threads] -dir[run dir] -parse[parsing data] -run[running simulations]

• run - specifiying this execution is to run Geant4 simulation. (cannot be enabled with parse)
• parse - specifiying this execution is to gather the data to a unified csv file. (cannot be enabled with run)
• dir - specify the dir containing our test cases. (should be equivalent to the save_path of make_data.py)
• j - specify the number of threads to run.