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Related papers: A Geant4 based engineering tool for Fresnel lenses

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This paper presents the simulation of the GLAST high energy gamma-ray telescope. The simulation package, written in C++, is based on the Geant4 toolkit, and it is integrated into a general framework used to process events. A detailed…

To maximize the accuracy of background simulation and event reconstruction, high-energy neutrino telescopes require detailed knowledge of light propagation over a large volume of detection medium. If light scattering and absorption leng ths…

Computational Physics · Physics 2007-05-23 Predrag Miocinovic , Peter Niessen

The precise simulation of particle transport through detectors remains a key element for the successful interpretation of high energy physics results. However, Monte Carlo based simulation is extremely demanding in terms of computing…

High Energy Physics - Experiment · Physics 2021-09-08 Florian Rehm , Sofia Vallecorsa , Kerstin Borras , Dirk Krücker

Purpose: To develop a Monte Carlo (MC) therapeutic dose calculation toolkit of a recently released ring gantry linac in Geant4 (Version 10.7) for secondary dose validation of radiotherapy plan. Methods: For the Halcyon (Varian Medical…

Medical Physics · Physics 2022-10-04 Ruirui Liu , Zhen Ji , Xiandong Zhao , Tianyu Zhao , Abhishek Sethi , Daren Sawkey , Bin Cai

Usually, Monte Carlo models are validated against experimental data. However, models of multiple Coulomb scattering (MCS) in the Gaussian approximation are exceptional in that we have theories which are probably more accurate than the…

Medical Physics · Physics 2017-08-02 Anastasia Makarova , Bernard Gottschalk , Wolfgang Sauerwein

The Monte Carlo simulation of the electron transport through thin slabs is studied with five general purpose codes: PENELOPE, GEANT3, GEANT4, EGSnrc and MCNPX. The different material foils analyzed in the old experiments of Kulchitsky and…

Medical Physics · Physics 2008-11-26 M. Vilches , S. Garcia-Pareja , R. Guerrero , M. Anguiano , A. M. Lallena

Gamma-ray spectra from cosmic-ray proton and electron interactions with dense gas clouds have been calculated using a Monte Carlo event simulation code, GEANT4. Such clouds are postulated as a possible form of baryonic dark matter in the…

Astrophysics · Physics 2009-11-10 Michiko Ohishi , Masaki Mori , Mark Walker

Research and development on alternative thermal neutron detection technologies and methods are nowadays needed as a possible replacement of 3He-based ones. Commercial solid state silicon detectors, coupled with neutron converter layers…

Instrumentation and Detectors · Physics 2017-03-07 Sergio Lo Meo , Luigi Cosentino , Paolo Bartolomei , Paolo Finocchiaro

We present lenscat, a public and community-contributed catalog of strong gravitational lenses found by electromagnetic surveys. The main objective of lenscat is to compile a simple, easy-to-access catalog that can be used in a variety of…

Astrophysics of Galaxies · Physics 2025-04-25 L. Vujeva , R. K. L. Lo , J. M. Ezquiaga , J. C. L. Chan

The Miniaturized Detector for Application in Space (MIDAS) is a compact device with dimensions 5 x 5 x 1 cm3 which combines position sensitive Si detectors and a fast neutrons spectrometer. MIDAS is developed with purpose to act as a linear…

Instrumentation and Detectors · Physics 2022-02-22 K. Karafasoulis , C. Papadimitropoulos , C. Potiriadis , C. P. Lambropoulos

Positron Emission Tomography (PET) is a Nuclear Medicine technique that creates images that allow the study of metabolic activity and organ function using radiopharmaceuticals. Continuous improvement of scintillation detectors for radiation…

Evolutions of Geant4 code have affected the simulation of electron backscattering with respect to previously published results. Their effects are quantified by analyzing the compatibility of the simulated electron backscattering fraction…

Kwant is a Python package for numerical quantum transport calculations. It aims to be an user-friendly, universal, and high-performance toolbox for the simulation of physical systems of any dimensionality and geometry that can be described…

Mesoscale and Nanoscale Physics · Physics 2015-10-12 Christoph W. Groth , Michael Wimmer , Anton R. Akhmerov , Xavier Waintal

The employment of a large area Phase Fresnel Lens (PFL) in a gamma-ray telescope offers the potential to image astrophysical phenomena with micro-arcsecond angular resolution. In order to assess the feasibility of this concept, two detailed…

Astrophysics · Physics 2008-11-26 John Krizmanic , Gerry Skinner , Neil Gehrels

We report a comprehensive study of cosmogenic activation of germanium used for tonne-scale rare event search experiments. The germanium exposure to cosmic rays on the Earth's surface are simulated with and without a shielding container…

Nuclear Experiment · Physics 2017-11-08 W. -Z. Wei , D. -M. Mei , C. Zhang

Position sensitive detectors based on gaseous scintillation proportional counters with Anger-type readout are being used in several research areas such as neutron detection, search for dark matter and neutrinoless double beta decay. Design…

Instrumentation and Detectors · Physics 2016-01-20 L. Pereira , L. M. S. Margato , A. Morozov , V. Solovov , F. A. F. Fraga

We present an implementation of a Monte Carlo algorithm that generates points randomly and uniformly on a set of arbitrary surfaces. The algorithm is completely general and only requires the geometry modeling software to provide the…

Nuclear Experiment · Physics 2009-03-19 J. A. Detwiler , R. Henning , R. A. Johnson , M. G. Marino

GraphNeT is an open-source python framework aimed at providing high quality, user friendly, end-to-end functionality to perform reconstruction tasks at neutrino telescopes using graph neural networks (GNNs). GraphNeT makes it fast and easy…

Instrumentation and Methods for Astrophysics · Physics 2022-10-25 Andreas Søgaard , Rasmus F. Ørsøe , Leon Bozianu , Morten Holm , Kaare Endrup Iversen , Tim Guggenmos , Martin Ha Minh , Philipp Eller , Troels C. Petersen

Using the Geant4 toolkit, a Monte-Carlo code to simulate the detector background of the Simbol-X focal plane instrument has been developed with the aim to optimize the design of the instrument. Structural design models of the mirror and…

Astrophysics · Physics 2008-02-27 R. Chipaux , U. Briel , A. Bulgarelli , L. Foschini , E. Kendziorra , C. Klose , M. Kuster , P. Laurent , C. Tenzer

The studies realized in INRNE (Institute for Nuclear Research and Nuclear Energy) particulary in cosmic rays detection and construction of Muonic Cerenkov Telescope in University of Blagoevgrad [1] shows the need to develop a theoretical…

Computational Physics · Physics 2007-05-23 I. Angelov , E. Duverger , E. Malamova , L. Makovicka , A. Mishev , J. Stamenov