This paper describes PDB4DNA, a new Geant4 user application, based on an independent, crossplatform, free and open source C++ library, so-called PDBlib, which enables use of atomic level description of DNA molecule in Geant4 Monte Carlo particle transport simulations. For the evaluation 15 of direct damage induced on the DNA molecule by ionizing particles, the application makes use of an algori...

Abstract The GeoModel toolkit is an open-source suite of standalone tools that provides the user with lightweight to describe, visualize, test, and debug detector descriptions geometries for HEP studies experiments. has been designed independence responsiveness in mind offers a development environment free other large frameworks, very quick cycle. With few dependencies, easy install on all syst...

  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...

Spectra of calibration sources and X-ray beams were measured with a cadmium telluride (CdTe) detector. The response function of the detector was simulated using the GEANT4 Monte Carlo toolkit. Trapping of charge carriers were taken into account using the Hecht equation in the active zone of the CdTe crystal associated with a continuous function to produce drop of charge collection efficiency ne...

A single-event effect (SEE) simulation toolkit has been developed at CERN for the whole radiation effects community and released as an open-source code. It validated by comparing simulated energy deposition of inelastic interactions, due to monoenergetic neutrons in 1.2–17 MeV range, distribution measured experimentally a silicon diode detector.

Precise β-branching-ratio measurements are required in order to determine ft-values as part of our program to test the Electroweak Standard Model via unitarity of the Cabibbo-Kobayashi-Moskawa matrix. For the measurements to be useful in this test, their precision must be close to 0.1%. In a branching-ratio measurement, we position the radioactive sample between a thin plastic scintillator used...

Double scattering-based proton therapy systems often use patient-specific range compensators for beam modulation. Range compensators adjust the depth in the tissue at which protons reach their Bragg peak. Accurately representing range compensators in Monte Carlo particle transport simulations is a vitally important problem for clinical treatment planning. This paper proposes two new computation...

The CCD97 is a low light level (L3) device from e2v technologies range of electron multiplying CCDs (EMCCDs). The device uses e2v’s patented extended gain register and through the use of appropriately designed electrodes can be used to maximise the signal whilst keeping the impact of the noise to a minimum. The nature of this device makes it ideal for use with a scintillator in order to see ind...

Abstract An analytical study, corroborated by Monte Carlo simulations, is presented which describes the interaction of a 300 keV–830 mA proton beam with Cu and Al dumping system. The calculations rely on theoretical framework Particle Induced X-ray Emission, while simulations are performed means GEANT4 toolkit. case study related to project SORGENTINA-RF fusion neutron source in particular test...