VahagIvanyan / J-PET-geant4

MC simulations for J-PET using the modified Geant4 package

JPetMC

Software information

JPetMC is a simulation program written in a GEANT4 environment. Details of the J-PET detector can be found on the project webpage webpage. Its main features:

• the J-PET detector geometry is loaded from the (CAD) technical drawings,
• user can load detector setups (identified by run numbers), which corresponds to one used in the experiment. Details can be found in section How to run,
• the mcGeant.root is created as an output file. It can be processed by the J-PET Framework software

Source code:

https://github.com/daria137/jpetmc.git

Required packages:

• geant4.10.04
• root 6.0
• cadmesh (https://github.com/christopherpoole/CADMesh)
• cmake
• doxygen

How to compile?

mkdir build cd build cmake .. make

• output file: (in build folder) bin/jpet_mc

How to create documentation?

(in build folder) cmake .. && make doc

• open the doc/html/index.html in your favourite web browser

How to run

The executable program is located in build/bin/jpet_mc. Simple execution of the program (./jpet_mc) should load the init_vis.mac script and show detector geometry.

User can adjust detector parameters and generated gamma-quanta by using macros. Exemplary macro is given in bin folder along the executive file.

Geometry

User can load one of the selected geometries:

• /jpetmc/detector/loadGeomForRun runNr
  • runNr=3
  • only implemented since now
  • loaded JPetBasicGeom
  • place inside of the detector the large annihilation chamber without porous material inside
• /jpetmc/detector/loadJPetBasicGeom
  • 3 layers of scintillators (48,48,96)
  • each scintillator: 1.9x0.7x50 cm^3 wrapped in kapton foil
  • detector frame: loaded from CAD file
  • standard setup for runs 1-6
• /jpetmc/detector/loadIdealGeom
  • not implemented yet
  • should load n-layer fully packed with scintillators barrel
• /jpetmc/detector/loadJPetExtendedGeom
  • not implemented yet
  • should load JPET standard geometry with additional read-out modules
• /jpetmc/detector/loadOnlyScintillators
  • shows only scintillator wrapped in a kapton foil

Targets

If user calls run geometry for dedicated run, then target is predefined and it can not be changed.

• materials can keep information about oPs creation and lifetime