Results 91 to 100 of about 64,212 (257)

Independent Reaction Times method in Geant4-DNA: implementation and performance.

Medical Physics (Lancaster), 2020
PURPOSE The simulation of individual particle tracks and the chemical stage following water radiolysis in biological tissue is an effective means of improving our knowledge of the physico-chemical contribution to the biological effect of ionizing ...
J. Ramos-Mendez, W. Shin, M. Karamitros, J. Domínguez-Kondo, N. Tran, S. Incerti, C. Villagrasa, Y. Perrot, V. Stepan, S. Okada, E. Moreno-Barbosa, B. Faddegon   +11 more
semanticscholar   +1 more source

3D printed collimators and dosimetry for spatially fractionated radiation therapy

Journal of Applied Clinical Medical Physics, Volume 27, Issue 1, January 2026.
Abstract Background Spatially fractionated radiation therapy (SFRT) has shown incredible potential in sparing normal tissues and activating mechanisms of tumor control distinct from conventional radiotherapy. However, the optimal spatial configuration of SFRT as well as the optimal peak and valley dose values have not been established.
MacKenzie R. Coon‐Haworth, Justin B. Geise, Thirumurugan Elango, Chandler J. Zaugg, Jessica L. Veenstra, Justina J. Riffell, Anna Polkowski, Oluwaseyi M. Oderinde, Judith N. Rivera, Matthew L. Scarpelli   +9 more
wiley   +1 more source

Scattered Ray Correction for High-Energy X-Ray Nondestructive Testing System for Nuclear Fuel Assemblies Based on MC Method

Journal of Isotopes
High energy X-ray non-destructive testing technology can obtain the internal structure information of the inspected object without destroying it. The multi-rod-beam nature of nuclear fuel assemblies can lead to severe scattering ray effects，which can ...
Zhi ZHONG, Gaokui HE, Xiangyang ZHANG
doaj   +1 more source

Opticks : GPU Optical Photon Simulation for Particle Physics using NVIDIA® OptiXTM [PDF]

EPJ Web of Conferences, 2019
Opticks is an open source project that integrates the NVIDIA OptiX GPU ray tracing engine with Geant4 toolkit based simulations. Massive parallelism brings drastic performance improvements with optical photon simulation speedup expected to exceed 1000 ...
Blyth Simon
doaj   +1 more source

Integral measurement of the 12C(n, p)12B reaction up to 10 GeV [PDF]

, 2016
The integral measurement of the 12C(n, p)12B reaction was performed at the neutron time-offlight facility n TOF at CERN. The total number of 12B nuclei produced per neutron pulse of the n TOF beam was determined using the activation technique in ...
Altstadt, Sebastian G., Bosnar, D., Colonna, Nicola, Cortés Giraldo, Miguel Antonio, Mengoni, A., Praena Rodríguez, Javier, Quesada Molina, José Manuel, Ventura, A., Zugec, P.   +8 more
core   +1 more source

Quantifying stent‐induced dose perturbations in intravascular brachytherapy using 3D‐ printed phantoms and film dosimetry

Journal of Applied Clinical Medical Physics, Volume 27, Issue 1, January 2026.
Abstract Background Coronary artery disease (CAD), the leading cause of death worldwide, is the narrowing of coronary arteries due to atherosclerotic plaque buildup. A common treatment for CAD is percutaneous coronary intervention (PCI), often involving stent placement. However, a common complication or in‐stent restenosis (ISR) can occur in 10%–20% of
Jessica S. Jung, Lyu Huang, Nicholas Coupera, Yijian Cao, Jenghwa Chang   +4 more
wiley   +1 more source

Quantitative Analysis of Transmission XRD Background Based on Monte Carlo Simulation

Yuanzineng kexue jishu
The first prerequisite for obtaining correct information from an X-ray diffraction pattern is to accurately remove the background. The most commonly used method in experiments is direct subtraction, which ignores the absorption of the sample and other ...
YUAN Jingxi, HUANG Ning, HE Ze, PENG Bo, WANG Peng
doaj   +1 more source

Validation of spallation neutron production and propagation within Geant4

, 2007
Using simulations to understand backgrounds from muon-induced neutrons is important in designing next-generation low-background underground experiments.
A.G. Schubert, Aalseth, Agostinelli, Allison, Araújo, Bauer, Brun, Chazal, J.A. Detwiler, J.F. Wilkerson, Jenkins, Kudryavtsev, M.G. Marino, Mei, Metropolis, R. Henning, R.A. Johnson, Roeslera, Taniguchi, Wang   +19 more
core   +1 more source

Bright Monocompound Metal Halide Scintillator for Fast Neutron Radiography

Advanced Functional Materials, Volume 36, Issue 3, 8 January 2026.
Metal halide scintillator, tetraphenylphosphonium manganese bromide (TPP2MnBr4), provides a significant benefit for fast neutron imaging. A fourfold increase in efficiency over traditional zinc sulfide screens is achieved by efficiently utilizing neutron interactions within its homogeneous structure.
Aditya Bhardwaj, Kostiantyn Sakhatskyi, Anastasiia Sakhatska, Pavel Trtik, Ye Wu, Yevhenii Padniuk, Yuliia Kominko, Kai Han, Vladyslav Orlov, Markus Strobl, Andrey L. Rogach, Zhiguo Xia, Sergii Yakunin, Maksym V. Kovalenko   +13 more
wiley   +1 more source

Modeling of the Characteristics of Electron Beams and Generated Photon Fluxes on the M-30 Microtron

East European Journal of Physics
Ensuring optimization of the radiation treatment process of experimental samples at electron accelerators and effective prediction of the results of the interaction of electron beams with irradiation objects requires the most accurate information about ...
Eugene V. Oleinikov, David Chvátil, Eugene Yu. Remeta, Aleksandr I. Gomonai, Yurii Yu. Bilak   +4 more
doaj   +1 more source