SINP-G4CMP

A repository for simulations of phonon transport and TES response in cryogenic detectors.

How to use the caustics code

• clone the repository
• go to the directory 'Caustics': cd Caustics
• make a `build' directory: mkdir build
• go inside the `build' directory: cd build
• make the code: cmake .. && cmake --build . -j6
• After it is built, for GUI mode run the executable directly ./g4cmpPhononCaustics
• Additionally you may use the macro file to run in batch mode ./g4cmpPhononCaustics ./Caustic.mac

Setting up GEANT4 and G4CMP

GEANT4

• Clone/download the source code of the preferred GEANT4 version.
• Make a build directory and run cmake in it: cmake -DCMAKE_INSTALL_PREFIX=$HOME/<geant4-install-path> -DGEANT4_INSTALL_DATA=ON -DGEANT4_BUILD_MULTITHREADED=ON -DGEANT4_USE_OPENGL_X11=ON -DGEANT4_USE_PYTHON=ON -DGEANT4_USE_QT=ON -DGEANT4_USE_XM=OFF -DGEANT4_BUILD_BUILTIN_BACKTRACE=OFF -DGEANT4_INSTALL_EXAMPLES=ON -DGEANT4_USE_SYSTEM_ZLIB=ON -DGEANT4_BUILD_TLS_MODEL=global-dynamic -DGEANT4_USE_GDML=ON $HOME/<geant4-source>
• Then build & install it : make -j10,make install
• Add the following line to your .bashrc file: `source $path_to_geant_install/bin/

G4CMP

Changes to Geant4 and/or G4CMP code

G4CMP

• Commented out the exceptions relating to track escaped from volume and track inconsistent position in library/src/G4CMPTrackLimiter.cc; to improve simulation time.
• Until the main G4CMP is not corrected, switch the positions of forient and finverse in the G4LatticePhysical.cc