Results 101 to 110 of about 64,212 (257)

X-ray tracing using Geant4

, 2008
We describe an extension to the Geant4 software package that allows it to be used as a general purpose X-ray tracing package. We demonstrate its use by building a model of the X-ray optics of the XMM-Newton, calculating its effective area, and comparing ...
Agostinelli, Born, E.J. Buis, G. Vacanti, Giacconi, Henke, Saha, Vanspeybroeck, Wolter   +8 more
core   +1 more source

G4CMP: Condensed matter physics simulation using the Geant4 toolkit [PDF]

Nuclear Instruments and Methods in Physics Research Section A : Accelerators, Spectrometers, Detectors and Associated Equipment, 2023
M. Kelsey, R. Agnese, Y. Alam, I. A. Langroudy, E. Azadbakht, D. Brandt, R. Bunker, B. Cabrera, Y.-Y. Chang, H. Coombes, R. M. Cormier, M. Diamond, E. Edwards, E. Figueroa-Feliciano, J. Gao, P. M. Harrington, Z. Hong, M. Hui, N. Kurinsky, R. Lawrence, B. Loer, M. G. Masten, É. Michaud, E. Michielin, J. Miller, V. Novati, N. Oblath, J. Orrell, W. Perry, P. Redl, T. Reynolds, T. Saab, B. Sadoulet, K. Serniak, J. Singh, Z. Speaks, C. Stanford, J. R. Stevens, J. Strube, D. Toback, J. Ullom, B. Vandevender, M. Vissers, M. Wilson, J. Wilson, B. Zatschler, S. Zatschler   +46 more
semanticscholar   +1 more source

Harnessing Self‐Sensitized Scintillation by Supramolecular Engineering of CsPbBr3 Nanocrystals in Dense Mesoporous Template Nanospheres

Advanced Materials, Volume 38, Issue 4, 16 January 2026.
Perovskite CsPbBr3 nanocrystals exhibit bright emission, fast response, and solution processability, but their nanoscale size limits efficient radiation detection. Organizing them into porous SiO2 mesospheres enhances radioluminescence up to 40 times, achieving an optimal combination of light yield, fast scintillation, and processability, providing a ...
Xiaohe Zhou, Matteo L. Zaffalon, Emanuele Mazzola, Andrea Fratelli, Francesco Carulli, Chenger Wang, Mengda He, Francesco Bruni, Saptarshi Chakraborty, Leonardo Poletti, Francesca Rossi, Luca Gironi, Francesco Meinardi, Liang Li, Sergio Brovelli   +14 more
wiley   +1 more source

The Geant4 Bertini Cascade [PDF]

Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 2015
One of the medium energy hadron–nucleus interaction models in the Geant4 simulation toolkit is based partly on the Bertini intranuclear cascade model. Since its initial appearance in the toolkit, this model has been largely re-written in order to extend its physics capabilities and to reduce its memory footprint. Physics improvements include extensions
Wright, D.H., Kelsey, M.H.
openaire   +1 more source

Investigation of inter‐source and intra‐source spectral variations in an electronic brachytherapy source using spectral measurements and Monte Carlo simulations

Medical Physics, Volume 53, Issue 1, January 2026.
Abstract Background The Xoft electronic brachytherapy source is commonly used to treat superficial lesions and tumors located at shallow depths. However, uncertainties in material composition and geometry, mainly arising due to the manual assembly of the x‐ray tube components, contribute to inter‐source variability in the tube output spectrum.
Azin Esmaelbeigi, Nada Tomic, Jonathan Kalinowski, Peter G. F. Watson, Mark J. Rivard, Slobodan Devic, Shirin A. Enger   +6 more
wiley   +1 more source

Validation of Geant4-based Radioactive Decay Simulation

, 2013
Radioactive decays are of concern in a wide variety of applications using Monte-Carlo simulations. In order to properly estimate the quality of such simulations, knowledge of the accuracy of the decay simulation is required.
Batič, Matej, Bell, Zane W., Hauf, Steffen, Hoffmann, Dieter H. H., Kuster, Markus, Lang, Philipp M., Neff, Stephan, Pia, Maria Grazia, Weidenspointner, Georg, Zoglauer, Andreas   +9 more
core   +1 more source

Clinical test cases for commissioning, QA, and benchmarking of model‐based dose calculation algorithms in 1⁹2Ir HDR gynecologic tandem and ring brachytherapy

Medical Physics, Volume 53, Issue 1, January 2026.
Abstract Purpose To develop clinically relevant test cases for commissioning Model‐Based Dose Calculation Algorithms (MBDCAs) for 192Ir High Dose Rate (HDR) gynecologic brachytherapy following the workflow proposed by the TG‐186 report and the WGDCAB report 372.
Vasiliki Peppa, Maude Robitaille, Fatemeh Akbari, Shirin A. Enger, Rowan M. Thomson, Firas Mourtada, Gabriel P. Fonseca   +6 more
wiley   +1 more source

Re-engineering a nanodosimetry Monte Carlo code into Geant4: software design and first results

, 2009
A set of physics models for nanodosimetry simulation is being re-engineered for use in Geant4-based simulations. This extension of Geant4 capabilities is part of a larger scale R&D project for multi-scale simulation involving adaptable, co-working ...
Gargioni, E., Grichine, V., Pia, M. G.
core   +1 more source

Development and Validation of the GEANT4 Model of the Electron Proton Helium Instrument on Board the SOHO Spacecraft Utilizing the Accelerator Measurements at the Hahn‐Meitner Institute Berlin

Earth and Space Science, Volume 13, Issue 1, January 2026.
Abstract Context. The Electron Proton Helium INstrument (EPHIN) aboard SOlar and Heliospheric Observatory is a particle telescope that measures energetic protons and helium above 4 MeV/nuc and electrons above 150 keV. While a calibration of EPHIN has been performed before launch, it has only partially been assessed reducing the accuracy of the detector
M. Hörlöck, B. Heber, S. Jensen, P. Kühl, H. Sierks   +4 more
wiley   +1 more source

Research and Development of a Natural Radioactivity Detection System for Import and Export Goods

Journal of Isotopes
China imports a large amount of bulk minerals and rare metals every year，and during customs radiation monitoring，harmless alarms are often triggered due to the presence of natural radioactive elements (NORM) in the minerals.
Jian ZHAN, Jianfeng SHI, Yongming HOU, Yulai ZHENG, Chao LIU, Qiang WANG, Yong LI, Lianjun ZHANG, Nan WANG   +8 more
doaj   +1 more source