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Purpose: To demonstrate a proton imaging system based on well-established fast scintillator technology to achieve high performance with low cost and complexity, with the potential of a straightforward translation into clinical use. Methods:…

The Fermi LAT collaboration has built up a detailed Monte Carlo simulation to characterize the instrument response and tune its performance. The simulation code is built around the widely used GEANT4 toolkit and was carefully validated…

High Energy Astrophysical Phenomena · Physics 2019-08-13 C. Sgrò , J. Bregeon , L. Baldini

The transport of neutrons in long beamlines at spallation neutron sources presents a unique challenge for Monte-Carlo transport calculations. This is due to the need to accurately model the deep-penetration of high-energy neutrons through…

Instrumentation and Detectors · Physics 2020-01-07 Douglas D. DiJulio , Isak Svensson , Xiao Xiao Cai , Joakim Cederkall , Phillip M. Bentley

NEXT-DEMO is a large-scale prototype of the NEXT-100 detector, an electroluminescent time projection chamber that will search for the neutrinoless double beta decay of Xe-136 using 100 to 150 kg of enriched xenon gas. NEXT-DEMO was built to…

We report on the development of a new shell-model Monte Carlo algorithm which uses the proton-neutron formalism. Shell model Monte Carlo methods, within the isospin formulation, have been successfully used in large-scale shell-model…

Nuclear Theory · Physics 2015-06-26 C. Ozen , D. J. Dean

De-excitation $\gamma$ cascades from neutron captures form a dominant background to MeV-scale signals. The Geant4 Monte Carlo simulation toolkit is widely used to model backgrounds in nuclear and particle physics experiments. While its…

Computational Physics · Physics 2025-05-12 Leo Weimer , Emma Ellingwood , Otis Fischer , Michela Lai , Shawn Westerdale

Monte Carlo simulations of the transport of protons in human tissue have been deployed on graphics processing units (GPUs) with impressive results. To provide a more complete treatment of non-elastic nuclear interactions in these…

Computational Physics · Physics 2014-10-01 H. Wan Chan Tseung , C. Beltran

Microscopic optical model potential results for reaction cross sections of proton elastic scattering are presented. The applications cover the 10-1000 MeV energy range and consider both stable and unstable nuclei. The study is based on…

Nuclear Theory · Physics 2008-11-26 H. F. Arellano , M. Girod

The neutron energy spectrum for energies between 5 and 15 MeV has been measured in the INFN Laboratori Nazionali del Gran Sasso in Italy, by using a $1.5~m^3$ stainless-steel tank filled with 1.2 ton Gd-doped liquid scintillator. A…

Instrumentation and Detectors · Physics 2019-09-10 Gianmarco Bruno , Walter Fulgione

Recently a new high energy proton microscopy facility PRIOR (Proton Microscope for FAIR) has been designed, constructed and successfully commissioned at GSI Helmholtzzentrum f\"ur Schwerionenforschung (Darmstadt, Germany). As a result of…

The current generation of Imaging Atmospheric telescopes (IACTs) has demonstrated the power of this observational technique, providing high sensitivity and an angular resolution of $\sim0.1^{\circ}$ per event above an energy threshold of…

High Energy Astrophysical Phenomena · Physics 2009-01-21 S. Funk , J. A. Hinton

This report presents a project of an experiment for precision studies of the elastic electron proton scattering in the low momentum transfer region. The project is based on an innovative experimental method which allows for detection of…

Nuclear Experiment · Physics 2019-10-23 A. Vorobyev

Proton scattering in some water and tissue equivalent phantom materials was measured to evaluate their simulation accuracy of water and respective human biological tissues. The measurements were performed on the medical facility of the ITEP…

Medical Physics · Physics 2010-11-23 V. N. Vasiliev , V. I. Kostjuchenko , V. G. Khaybullin , S. I. Samarin , A. S. Uglov

A technique for the simulation of dark bremsstrahlung for electrons and muons in GEANT4 is presented. The total cross section is calculated using the Weizs\"{a}cker-Williams approximation and the outgoing kinematics are produced by scaling…

High Energy Physics - Phenomenology · Physics 2023-03-01 Tom Eichlersmith , Jeremiah Mans , Omar Moreno , Joseph Muse , Michael Revering , Natalia Toro

No fast neutron therapy facility has been built with optimized beam quality based on a thorough understanding of the neutron spectrum and its resulting biological effectiveness. A study has been initiated to provide the information…

Accelerator Physics · Physics 2012-07-09 T. K. Kroc

Particle therapy is an established method to treat deep-seated tumours using accelerator-produced ion beams. For treatment planning, the precise knowledge of the relative stopping power (RSP) within the patient is vital. Conversion errors…

The modification of hard jets in an extended static medium held at a fixed temperature is studied using three different Monte-Carlo event generators (LBT, MATTER, MARTINI). Each event generator contains a different set of assumptions…

This work is the second part of a simulation study investigating the processing of densely packed and moving granular assemblies by positron emission particle tracking (PEPT). Since medical PET scanners commonly used for PEPT are very…

In order to evaluate the response to cosmic-ray nuclei of a Compton-Scatter Transition Radiation Detector in the proposed ACCESS space-based mission, a hybrid Monte Carlo simulation using GEANT3 and an external transition radiation (TR)…

Instrumentation and Detectors · Physics 2009-11-11 John F. Krizmanic , Michael L. Cherry , Robert E. Streitmatter

Petawatt-class lasers can produce multi-GeV electron beams through laser wakefield electron acceleration. As a by-product, the accelerated electron beams can generate broad synchrotron-like radiation known as betatron radiation. In the…