Comparison of Geant4 with EGSnrc for Simulation of Gamma-Radiation Detectors Based on Semi-Insulating Materials

TL;DR

This study compares GEANT4 and EGSnrc simulation tools to evaluate gamma-ray detector responses based on semi-insulating materials, highlighting their agreement across various energies and detector compositions.

Contribution

It provides a comparative analysis of GEANT4 and EGSnrc for gamma-ray detector simulations, focusing on semi-insulating materials and different electromagnetic physics packages.

Findings

Good agreement between GEANT4 and EGSnrc simulations.

Penelope 2008 model in GEANT4 shows reliable results.

Simulations cover gamma energies from 0.026 to 3 MeV.

Abstract

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.