Results 31 to 40 of about 4,632 (208)
Radiology and mammography standard X-ray spectra simulated with the Monte Carlo method
Brazilian Journal of Radiation Sciences, 2021 Six standard beams described in the TRS-457 (IAEA): RQR 5, 8, M1, M2, M3, M4 were simulated using the EGSnrc Monte Carlo code. Each spectrum was created by an X-ray tube simulated in BEAMnrc, and attenuation curves were obtained using the application ...
Joel Marques Xavier Filho +2 more
doaj +1 more source
Journal of Medical Physics, 2021 Background: The aim of this study is to evaluate the dose calculation algorithms commonly used in TPS by using MC simulation in the highly different inhomogeneous region and in the small fields and to provide the following uniquely new information in the
Taylan Tuğrul
doaj +1 more source
The dosimetric effect of photon target degradation on C-series linear accelerators using Monte Carlo simulation. [PDF]
J Appl Clin Med PhysAbstract Background The impact of beam dosimetry changes brought on by target degradation has not been well investigated. Purpose To determine the optimal dosimetry metrics for detecting target degradation and to investigate the impact of beam dosimetry changes brought on by target degradation. Methods The EGSnrc Monte Carlo programs were used to model
Deng Y, Qiu M, Zhong J, Xiao Z.
europepmc +2 more sources
Monte Carlo dosimetry of the 60Co sources of a new GZP3 HDR afterloading system. [PDF]
Radiat Oncol, 2023 Background The purpose of this work was to obtain the dosimetric parameters of the new GZP3 60Co high-dose-rate afterloading system launched by the Nuclear Power Institute of China, which is comprised of two different 60Co sources.
Wu J, Kang S, Wang P, Li J, Wang X.
europepmc +2 more sources
Journal of Isotopes, 2014 Under the same parameters, the Monte Carle codes MCNP5 and EGSnrc were used to calculate the dose field distribution. Measurements of the dose field distributions about the source were performed using LiF thermoluminescent dosimeters(GR-200) in PMMA ...
CAO Zhen1;MENG Bei-di2;ZHANG Wen-zai2;FENG Gen-sheng2;WANG Xiao-jing2
doaj +1 more source
Monte Carlo analysis of energy deposition and X-ray fluence in cylindrical anode systems. [PDF]
J Appl Clin Med PhysAbstract Background Cylindrical anode X‐ray systems are increasingly used in multisource imaging; however, electron beam interactions with the curved anodes cause geometric distortions that alter energy deposition and X‐ray emission. Understanding these effects is key to optimizing system performance.
Alharbi MKM +4 more
europepmc +2 more sources
Semi-classical Monte Carlo algorithm for the simulation of X-ray grating interferometry
Scientific Reports, 2022 Traditional simulation techniques such as wave optics methods and Monte Carlo (MC) particle transport cannot model both interference and inelastic scattering phenomena within one framework.
Stefan Tessarini +6 more
doaj +1 more source
Estimation of dose distribution in occupationally exposed individuals to FDG-18F
Brazilian Journal of Radiation Sciences, 2015 The use of unsealed radiation sources in nuclear medicine can lead to important incorporation of radionuclides, especially for occupationally exposed individuals (OEIs) during production and handling of radiopharmaceuticals.
Isabelle Viviane Batista de Lacerda +4 more
doaj +1 more source
GEANT4 application for the simulation of the head of a siemens primus linac [PDF]
, 2010 The Monte Carlo simulation of the head of a Siemens Primus Linac used at Virgen Macarena Hospital (Sevilla, Spain) has been performed using the code GEANT4 [1-2], version 9.2.
Cortés Giraldo, Miguel Antonio +2 more
core +1 more source
Brazilian Journal of Radiation Sciences, 2013 Algumas das irradiações a que o homem é submetido podem ser modeladas por um fantoma de voxels acoplado a um código Monte Carlo (MC) que simule o transporte da radiação pelos órgãos e tecidos do fantoma, a interação desta com os átomos constituintes do ...
José Wilson Vieira +3 more
doaj +1 more source