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.

We report on results of computational studies of the interaction of slow electrons with the purine and pyrimidine bases of DNA, as well as with their associated nucleosides and nucleotides. The calculations focus on characterisation of the π∗ resonances associated with the bases and also provide general information on the scattering of slow electrons by these targets. High-level studies of the ...

PURPOSE With the advent of magnetic resonance imaging (MRI)-guided radiation therapy it is becoming increasingly important to consider the potential influence of a magnetic field on ionising radiation. This paper aims to study the effect of a magnetic field on the track structure of radiation to determine if the biological effectiveness may be altered. METHODS Using the Geant4-DNA (GEometry A...

An energy deposition model for electrons in air that can be useful in microdosimetric applications is presented in this study. The model is based on a Monte Carlo simulation of the single electron scattering processes that can take place with the molecular constituents of the air in the energy range 10–10 000 eV. The input parameters for this procedure have been the electron scattering cross se...

014801-1 Present and future accelerators’ performances may be limited by the electron cloud (EC) effect. The EC formation and evolution are determined by the wall-surface properties of the accelerator vacuum chamber. We present measurements of the total secondary electron yield (SEY) and the related energy distribution curves of the secondary electrons as a function of incident-electron energy....

Monte Carlo simulations are more and more popular trend in nuclear medicine imaging. They were also widely used in radiotherapy and brachytherapy with use of more general simulation software. GATE (Geant4 Application for Tomographic Emission) is a platform developed on general Monte Carlo code designed for simulating and tracking the passage of particles through matter (Geant4) but is specifica...

The GATE Monte Carlo simulation platform based on the GEANT4 toolkit has come into widespread use for simulating positron emission tomography (PET) and single photon emission computed tomography (SPECT) imaging devices. Here, we explore its use for calculating electron dose distributions in water. Mono-energetic electron dose point kernels and pencil beam kernels in water are calculated for dif...

A model is presented that explains the charging rate of LISA Pathfinder test masses by interplanetary cosmic ray environment. The incorporates particle-tracking from TeV to eV energies using a combination GEANT4 and custom low-energy particle generation tracking code. electrostatic environment mass simulated allowing for comparison test-mass charging-rate dependence on local electric fields wit...

complicated potential structure formed at a constriction of positive column of a dc discharge with heated cathode in he at low discharge currents is investigated. according to the potential structure, electrons and ions are accelerated by the electric field and their energy distribution functions acquire multi humped shapes. additional maximums on distribution functions quickly disappear due to...

Abstract PolarLight is a gas pixel X-ray polarimeter mounted on CubeSat, which was launched into Sun-synchronous orbit in 2018 October. We build mass model of the whole CubeSat with Geant4 toolkit to simulate background induced by cosmic (CXB) and high-energy charged particles orbit. The simulated energy spectra morphologies event images both suggest that measured dominated electrons, minor con...