RAT is a simulation and analysis package built with GEANT4, ROOT, and C++, originally developed by S. Seibert for the Braidwood Collaboration. Versions of RAT are now being used and developed by several particle physics experiments.

RAT combines simulation and analysis into a single framework, which allows analysis code to trivially access the same detector geometry and physics parameters used in the detailed simulation.

RAT follows the "AMARA" principle: As Microphysical as Reasonably Achievable. Each and every photon is tracked through an arbitrarily detailed detector geometry, using standard GEANT4 or custom physics processes. PMTs are fully modeled, and detected photons may be propagated to a simulation of front-end electronics and DAQ.

This generic version is intended as a starting point for collaborations looking for an easy-to-learn, extensible detector simulation and analysis package that works out of the box. Once acquainted with RAT, it is easy to customize the geometry elements, physics details, data structure, analysis tools, etc., to suit your experiment's needs.

Installation requires ROOT, Geant4, and cmake 3.11+

Install using cmake

$ git clone https://github.com/AIT-WATCHMAN/rat-pac
$ cd rat-pac 
$ cmake . -Bbuild
$ cmake --build build -- -j$(nproc)

If you want to install the code, just add

$ cmake --build build . --target install -j$(nproc)

We have a docker image with rat pre-installed at aitwatchman/ratpac

In this current implementation, any branched merged into the master version of the github will automatically be uploaded to the docker image.

The correct work procedure is to fork the repository to your personal directory. Make required changes. Make pull request by assigning an approved custodian.

Running docker on linux

docker run --rm -it \
  -v /tmp/.X11-unix:/tmp/.X11-unix \
  -e DISPLAY
  aitwatchman/ratpac:latest