background: to reduce the dose to normal tissues surrounding the treated breast, a uniform magnetic field was used within a humanoid phantom in breast radiotherapy. materials and methods: monte carlo simulations were performed with geant4, irradiating humanoid phantoms in a magnetic field. to reconstruct phantoms, computed tomography (ct) data slices of four patients were used for the monte car...

D.H. Wright, D. Aston, M.L. Kocian, H. Marsiske SLAC, Stanford, CA 94025, USA W.S Lockman, D.C. Williams University of California at Santa Cruz, Institute for Particle Physics, Santa Cruz, CA 95064, USA A.W. Weidemann, J.R. Wilson University of South Carolina, Columbia, SC 29208, USA T.B. Moore University of Massachusetts, Amherst, MA 01003, USA A.J. Lyon University of Manchester, Manchester M1...

The study of the processes occurring in a matter when ionizing radiation passes through is important for solving various problems. Examples such problems are applied and fundamental field physics, chemistry, biology, medicine dosimetry. This work dedicated to computer modeling parameters tungsten converter studying damage during interaction with solutions organic dyes. Simulation was carried ou...

Angular distributions of charged particles obtained with Geant4 simulation are compared with experimental data and with the Highland parametrisation.

The Monte Carlo method was employed to obtain the response of a position sensitive gamma ray detector. The basic unit consists of a scintillator bar coupled to two photon detectors. Determination of the position of interaction is obtained from the ratio of the light intensity measured at each extremity of the bar. Association of two or more detectors of this type can be used to build a system w...

The energy deposition on the ISIS muon target and the temperature profiles are analysed in this paper. The thermal modelling is performed using the GEANT4 Monte Carlo code. Heat deposition patterns are also simulated for alternative target geometries. Energy deposition in the collimators is also discussed.

Using Geant4 Monte-Carlo simulations the potential of the Low Energy Neutrino Astronomy (LENA) liquid scintillator detector for the investigation of a possible proton decay within the channel p → Kν is discussed. Special emphasis is given to the study of background events.

In this paper we present the results of GEANT4 simulations of the production of surface muons as a function of energy of the incident protons on a graphite target. A validation of the GEANT4 hadronic physics models has been performed by comparing the results with experimental data from the Lawrence Radiation Laboratory, United States. Considering the ISIS muon target as a reference, simulations...

The need for proliferation-resistance, longer fuel cycles, higher burn up and improvedwaste form characteristics has led to a renewed worldwide interest in thorium-based fuels and fuel cycles. In this paper the GEANT4 Monte Carlo code has been used to simulate the Thorium-Uranium fuel cycle. The accelerator driven fertile to fissile conversion rates have been calculated for various geometries. ...

An algorithm has been developed for the GEANT4 Monte-Carlo package for the efficient computation of screened Coulomb interatomic scattering. It explicitly integrates the classical equations of motion for scattering events, resulting in precise tracking of both the projectile and the recoil target nucleus. The algorithm permits the user to plug in an arbitrary screening function, such as Lens-Je...