Geant4 is an open software toolkit for the Monte-Carlo simulation of particle transport in matter. It is used in many domains, like high energy and nuclear physics, medical and space science, as well as homeland security and material science. Started 30 years ago, it is still subject to very active developments. This paper presents the developments in Geant4 over the past 10 years, covering the kernel, physics models, and software aspects. It also discusses ongoing R&D projects.
Marc Verderi (Wed,) studied this question.
Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context: