Download ATHENA

Clone the athena repo, and checkout the 144-irt-geometry development branch:

git clone --branch=144-irt-geometry git@eicweb.phy.anl.gov:EIC/detectors/athena.git

Switch to ATHENA

Source environment:

source environ.sh                     # EPIC environment
source deprecated/environ_athena.sh   # overrides for ATHENA

Build the ATHENA geometry, then re-build Juggler:

build.sh athena clean
build.sh juggler clean

For reconstruction, you may need to create an IRT auxfile, using

deprecated/create_irt_auxfile_athena.py

To switch your environment back to EPIC:

source environ.sh
build.sh epic clean
build.sh juggler clean