Comparison of Geant4 with EGSnrc for Simulation of Gamma-Radiation   Detectors Based on Semi-Insulating Materials
  We considered GEANT4 version 4.9.4 with different Electromagnetic Physics Package for calculation of response functions of detectors based on semi-insulating materials. Computer simulations with GEANT4 packages were run in order to determine the energy deposition of gamma-quanta in detectors of specified composition (Mercuric (II) Iodide and Thallium Bromide) at various energies from 0.026 to 3 MeV. The uncertainty in these predictions is estimated by comparison of their results with EGSnrc simulations. A general good agreement is found for EGSnrc and GEANT4 with Penelope 2008 model of LowEnergy Electromagnetic package. 
A.I. Skrypnyk, A.A. Zakharchenko, M.A. Khazhmuradov
physics.ins-det