Results 81 to 90 of about 53,451 (219)
Research and Development of a Natural Radioactivity Detection System for Import and Export Goods
Journal of IsotopesChina 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 +8 more
doaj +1 more source
Sensitive Volume Modeling in Calculation of Space Radiation-Induced SEU Cross Section [PDF]
فصلنامه علوم و فناوری فضایی, 2014 Shape and size of sensitive volume are the most important parameters to model electronic devices for calculation of the SEU rate from space radiations. So far different models have been proposed for estimation of the sensitive volume.
S. Boorboor, S. A. H. Feghhi, H. Jafari
doaj
Investigating the Role of Bismuth Oxide and Gadolinium Oxide as an Enhancer of the Gamma Shielding Ability of Polymer Compounds Based on Unsaturated Resin Using the Monte Carlo Simulation Geant4 Tool [PDF]
Journal of Advanced Materials in EngineeringThe presence of lead as the first radiation shielding with a series of good features such as high density and having some flexibility and a series of inappropriate features such as toxicity, low physical and chemical stability, and high weight, has long ...
M. Rahmani Vareki +2 more
doaj +1 more source
Advanced Materials, Volume 38, Issue 8, 6 February 2026.Electret‐style organic thin‐film transistors are evaluated for synchrotron X‐ray dosimetry at ultra‐high dose rates, showing promising performance and agreement with standard detectors. XPS and NEXAFS reveal radiation‐induced oxidation and Fermi level shifts in pentacene and polystyrene, correlating with reduced charge carrier mobility and providing ...
Alexandria Mitchell +12 more
wiley +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 +19 more
core +1 more source
Medical Physics, Volume 53, Issue 2, February 2026.Abstract Background The development of PET scanners dedicated to high temporal and spatial resolution organ‐specific imaging is an active research area, motivated by the need for cost reduction, improved lesion detectability and quantification in specific clinical scenarios, as well as by ongoing hardware and software innovations.
Abdollah Saberi Manesh +7 more
wiley +1 more source
Dose Calculations of SPECT Simulations on Dynamical Targets with GATE / GEANT4
Cumhuriyet Science Journal, 2019 Simulations of SPECT studies have been taken attention withthe fact that more accurate results can be constructed in medical imaging with developingcomputing techniques.
Sinan Kuday
doaj +1 more source
Look‐up table correction for beam hardening‐induced signal of clinical dark‐field chest radiographs
Medical Physics, Volume 53, Issue 2, February 2026.Abstract Background The microstructure of material at a μm$\,\umu\mathrm{m}$ length scale leads to ultra‐small‐angle scattering of X‐rays, which typically occurs, e.g., for lung tissue or some plastic foams. When using an interferometer, this effect alters the visibility of the fringe pattern, which can be detected and resolved by the detector.
Maximilian E. Lochschmidt +6 more
wiley +1 more source
, 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 +8 more
core +1 more source