GEANT4 is a detector simulation toolkit designed for the new generation of High Energy Physics experiments as well as for nuclear physics, astrophysics, medical and space applications and radiation background studies. An overview of its main features is presented, with emphasis on the most recent enhancements and a selection of results from Geant4-based simulations in various experimental envir...

A Geant4 hadronic process verification suite has been designed to test and optimize Geant4 hadronic models in the cascade energy range. It focuses on quantities relevant to the LHC radiation environment and spallation source targets. The general structure of the suite is presented, including the user interface, stages of verification, management of experimental data, event generation, and compa...

The aim of this work was to study the influence of Geant4 parameters on dose distribution and computational time for simulations of carbon ion therapy. The study was done using Geant4 version 9.0. The dose distribution in water for incident monoenergetic carbon ion beams of 300 MeV/u were compared for different values of secondary particle production threshold and different step limits. Variati...

New features are added to the Fritiof model implemented in Geant4: a simulation of elastic hadron-nucleon scatterings; a simulation of binary reactions like NN→N∆ in hadron-nucleon interactions; a separate simulation of single diffractive and non-diffractive events; the reggeon theory inspired model of nuclear destruction (RTIM) and the algorithm of “Fermi motion” simulation in nuclear reaction...

In this paper, we present a novel implementation of a dose calculation application, based on the GEANT4 Monte Carlo toolkit. Validation studies were performed with an homogeneous water phantom and an Alderson-Rando anthropomorphic phantom both irradiated with high-energy photon beams produced by a clinical linear accelerator. As input, this tool requires computer tomography images for automatic...

From the beginning the Geant4 Visualisation System was designed to support several simultaneous graphics systems written to common abstract interfaces. Today it has matured into a powerful diagnostic and presentational tool. It comes with a library of models that may be added to the current scene and which include the representation of the Geant4 geometry hierarchy, simulated trajectories and u...

Monte Carlo tools have been long used to assist the research and development of solutions for proton therapy monitoring. The present work focuses on the prompt-gamma emission yields by comparing experimental data with the outcomes of the current version of Geant4 using all applicable proton inelastic models. For the case in study and using the binary cascade model, it was found that Geant4 over...

monte carlo method is a very accurate method to optimize medical diagnostic radiology spectra and simulation of radiation transportation. using mcnp code, radiology and mammography attenuated x-rayspectraweresimulated.the ipem report number 78 was used as a reference to compare with the geant4 and mcnp simulations because of its popularity and wide availability. the results of geant4 in 40kev s...

The algorithm for the simulation of energy losses of low energy ions is described. The details of its implementation in GEANT4 are discussed. The comparison of the simulation results with the experimental data is presented. 1 Introduction GEANT4[1] is a toolkit for Monte Carlo particle transport simulation for a wide range of applications, based on the Object Oriented technology. The GEANT4 mod...