Monte Carlo calculations with MCNPX and GEANT4 for general shielding study―Application to a proton therapy center

Abstract

Monte Carlo codes have become an essential tool for studying the radiation protection of particle accelerator facilities such as a proton therapy center. The MCNPX code is well adapted for shielding study but the GEANT4 toolkit is also a suitable solution. Benchmark simulationssecondary-particle production and attenuationand shielding calculations for a proton therapy center show that both codes provide results in good agreement.