Developed by Lew Riley and his students at Ursinus College, this simulation is tailored to analysis of Gretina-S800 experiments at NSCL. The geometry from GretinaSim was transplanted into an existing simulation framework used to analyze inelastic scattering and nucleon knockout reaction experiments using SeGA/CAESAR with S800.

The UCGretina analysis package is hosted using a Git repository on Bitbucket. Please contact Lew Riley for information if you would like to work on the GRETINA simulations effort or use this code.


A sub-working group has been formed to specifically work on the simulation task of GRETINA. Regular phone conferences are held to discuss the progress of simulation for different applications, and changes/developments in the code. If you are interested in participating in this development, please contact T. Lauritsen to be added to the mailing list for details of the phone conferences, etc..


This code is essentially AGATA simulation framework with geometry files modified to reproduce the Gretina module and mounting frame geometries including dead materials. With the improvements being made to customize the simulation for GRETINA, and some of its associated detector systems under the framework of the UCGretina simulation, this simulation package is phasing out in favour of UCGretina. However, those who are interested can download this original code here:

To install simulation package:
  1. Download and unpack into your $G4WORKDIR
  2. cd to the unpacked directory
  3. Make

Image GretinaSim


Geant4 is available for download at CERN.
An alternative is to use the prepackaged Virtual Machine at IN2P3.

A major issue with Geant4 is version compatibility. Specifically, version 4.9.5 transitions the Geant4 build system to cmake. UCGRETINA and the GretinaSim packages have been tested at LBNL using Geant version 4.9.3.p01.
Heather Crawford,
Dec 11, 2015, 2:00 PM