Overview

Detector geometry:

• Empty viewer
• Craterlake: viewer tgeo step
• Subsystems:
  • Inner detector: viewer tgeo
  • Calorimetry: viewer tgeo
    • Imaging: viewer tgeo step
  • PID: viewer tgeo
    • dRICH: viewer tgeo step
    • pfRICH: viewer tgeo
    • DIRC: viewer tgeo step
  • Tracking: viewer tgeo step
    • Vertex: viewer tgeo
    • TOF: viewer tgeo
  • Beamline: viewer tgeo step

Detector parameters:

• Craterlake: text toml csv html

Getting Started

This assumes you have DD4hep installed in your environment. Please use the eic-shell container (see the EIC environment tutorial). If you are just looking to do simulation and reconstruction with unmodified ePIC geometry, you don’t need to compile it yourself. The instructions below are for when you are looking to do development:

Get a copy of the latest version from this repository:

git clone https://github.com/eic/epic.git

Compilation

To configure, build, and install the geometry (to the install directory), use the following commands:

cmake -B build -S . -DCMAKE_INSTALL_PREFIX=install
cmake --build build
cmake --install build

To load the geometry, you can use the scripts in the install directory:

source install/bin/thisepic.sh

Contributing

See Contributing Guidelines.

Related useful links

• EIC tutorial: Geometry Development with DD4hep
• DD4hep repository
• DD4hep User’s Manuals
• ACTS DD4hep plugin documentation