Geant4Reweight is an open-source C++ framework that allows users to 1) weight tracks produced by the GEANT4 particle transport Monte Carlo simulation according hadron interaction cross section variations and 2) estimate uncertainties in models comparing simulation's predictions data. The ability as simulated crucial propagation of systematic related secondary hadronic interactions current upcom...

  Introduction: Arrays of segmented scintillation crystals are useful in megavoltage x-ray imaging detectors for image-guided radiotherapy. Most previous theoretical studies on these detectors have modelled only ionizing-radiation transport. Scintillation light also affects detector performance. ScintSim1, our previously reported optical Monte Carlo code for such detector...

1 Nagoya City, Nagoya, Japan 2 Levedev Physics Institute, Moscow, Russia 3 Atomic Institute of the Austrian Universities, Vienna University of Technology, Vienna, Austria 4 CERN, CH-1211 Geveve 23, Swizerland 5 Ecoanalytica, 119899 Moscow, Russia 6 Metz University, LPMC, 57078 Metz, France 7 Geant4 Associates International Ltd, United Kingdom 8 LAPP, 74941 Annecy-le-vieux, France 9 Hyogo Ion Be...

Commercially there is a growing interest in applications of neutrons. Currently the majority of neutron sources are based at research institutions from either reactors or spallation sources. Smaller portable sources contain either fissile isotope or sealed fusors are available, although they either use or produce tritium, or other long lived decay products. As an alternative to the large facili...

Within the present work HPGe detectors of Institute Nuclear and Particle Physics at NCSR “Demokritos” were fully characterized in terms their efficiency. The three n-type 80% relative efficiency recently acquired framework CALIBRA project. All are equipped with carbon epoxy windows that allow detection low energy γ-rays. Beside characterization, modeled by means GEANT4. In all cases simulated d...

The contribution of low-energy particles down to ~200 eV the dose deposited on very near surface materials subject space environment is investigated by means GEANT4 Monte Carlo simulations. dose, parts Global Radiation Earth ENvironment (GREEN) spectra (200 eV-40 keV for electrons, 200 eV-100 protons), compared with calculations performed AE8/AP8. Both geostationary earth orbit (GEO) and low (L...

The major differences between the physics models in Geant4-DNA and RITRACKS Monte Carlo packages are investigated. Proton and electron ionisation interactions and electron excitation interactions in water are investigated in the current work. While these packages use similar semiempirical physics models for inelastic cross-sections, the implementation of these models is demonstrated to be signi...