Results 51 to 60 of about 3,943 (183)
Journal of Applied Clinical Medical Physics, Volume 27, Issue 9, September 2026.Abstract Background TG‐43 formalism dose calculation for brachytherapy with the homogeneous water‐based assumption is widely used, which can lead to dose inaccuracy in treatment planning. Purpose Extremity malignancies are also treated with high‐dose‐rate (HDR) 192Ir interstitial brachytherapy, a treatment site that has not been specifically ...
Peixiong Li +10 more
wiley +1 more source
A Low‐Power Radioisotope XRF Spectrometer for Detection of Light Elements on Planetary Missions
X-Ray Spectrometry, Volume 55, Issue 5, Page 721-729, September/October 2026.ABSTRACT Current X‐ray spectrometers for in situ geochemical analysis on planetary missions typically rely either on X‐ray tubes, which demand electrical power and add mass and thermal complexity, or on alpha particle X‐ray spectrometers (APXS) that use rare 244 Cm sources, and come with severe concerns on radiation safety and isotope availability.
Leandro Silveri +14 more
wiley +1 more source
The 40K‐K dating system: 1. Improving data interpretation using new model calculations
Meteoritics &Planetary Science, Volume 61, Issue 9, Page 2187-2200, September 2026.Abstract The 40K‐K cosmic‐ray exposure (CRE) dating system offers a promising method for determining exposure ages of iron meteorites by combining the radioactive cosmogenic 40K with the stable cosmogenic isotopes 39K and 41K. However, earlier applications relied on semi‐empirical production models and inconsistent analytical data sets, limiting their ...
Farshid Nozarian +2 more
wiley +1 more source
Advanced Engineering Materials, Volume 28, Issue 15, 5 August 2026.This review highlights advances in lightweight, lead‐free polymer nanocomposites for diagnostic X‐ray shielding. By linking filler chemistry, dispersion, architecture, and photon interaction mechanisms, it establishes structure–performance relationships guiding material design.
Aklilu G. Messele +2 more
wiley +1 more source
Annals of West University of Timisoara: Physics, 2019 We have explored the effectiveness of Geant4 by using it to simulate phonon conduction in Sn Host with Si Nanowire Interface. Our Monte Carlo Simulation shows that the effectiveness of the phonon conduction Geant4 simulation increases when the system ...
Iheduru C. +4 more
doaj +1 more source
Upgrade of CMS Full Simulation for Run 2 [PDF]
EPJ Web of Conferences, 2019 We report on the status of the CMS full simulation software for Run 2 operations of the LHC. Initially, Geant4 10.0p02 was used and about 16 billion events were produced for analysis of 2015-2016 data.
Ivanchenko Vladimir, Banerjee Sunanda
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Monte carlo assessment of advanced shielding materials for space‐efficient radiotherapy vault design
Journal of Applied Clinical Medical Physics, Volume 27, Issue 8, August 2026.Abstract Background Conventional radiotherapy vault shielding typically employs 2 to 3 meters of ordinary concrete, consistent with NCRP Report 151 reference data. While NCRP 151 specifies dose‐based design goals rather than mandating particular materials, the practical default of concrete results in vault footprints of 150 to 200 m2 per linac, which ...
Beechui Koo +6 more
wiley +1 more source
Journal of IsotopesHigh 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
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Medical Physics, Volume 53, Issue 8, August 2026.Abstract Background The clinical translation of Minibeam RT (MBRT) has recently started thanks to the first human treatments recently performed. However, despite experimental evidence, the impact of the dose distribution parameters involved on the magnitude of the effect itself and the underlying radiobiological mechanisms are still only partially ...
Francesco Romano +89 more
wiley +1 more source
Quantitative Analysis of Transmission XRD Background Based on Monte Carlo Simulation
Yuanzineng kexue jishuThe 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