Results 131 to 140 of about 1,530,338 (157)

Application of Monte Carlo stimulation for radiation therapy: on the features of EGS4 and BEAMnrc code

Application of Monte Carlo stimulation for radiation therapy: on the features of EGS4 and BEAMnrc code
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Simulating oblique incident irradiation using the BEAMnrc Monte Carlo code

Physics in Medicine and Biology, 2009
A new source for the simulation of oblique incident irradiation has been developed for the BEAMnrc Monte Carlo code. In this work, we describe a method for the simulation of any component that is rotated at some angle relative to the central axis of the modelled radiation unit.
Emiliano Spezi
exaly   +4 more sources

SU‐FF‐I‐25: Feasibility of Estimating Multidetector CT Dose Using BEAMnrc Code

Medical Physics, 2007
Purpose: Most of Monte Carlo based methods estimating radiation dose in computed tomography (CT) were performed using MCNP or EGS codes. The BEAMnrc code, one of Monte Carlo codes, was usually used to simulate radiation therapy accelerators, and has fine graphic interfaces and various component modules.
C C Chiang‐Hsieh, Hui‐Yu Tsai, C J Tung   +2 more
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Energetic properties’ investigation of removing flattening filter at phantom surface: Monte Carlo study using BEAMnrc code, DOSXYZnrc code and BEAMDP code

Physics of Particles and Nuclei Letters, 2017
The Monte Carlo calculation method is considered to be the most accurate method for dose calculation in radiotherapy and beam characterization investigation, in this study, the Varian Clinac 2100 medical linear accelerator with and without flattening filter (FF) was modelled.
Mohamed Bencheikh, Jaouad Tajmouati, Abdelmajid Maghnouj   +2 more
exaly   +2 more sources

Validation of Monte Carlo simulation of 6 MV photon beam produced by Varian Clinac 2100 linear accelerator using BEAMnrc code and DOSXYZnrc code

Physics of Particles and Nuclei Letters, 2017
The Monte Carlo model for the photon-beam output from the Varian Clinac 2100 linear accelerator was validated to compare the calculated to measured PDD and beam dose profiles The Monte Carlo calculation method is considered to be the most accurate method for dose calculation in radiotherapy.
Ahad Ollah Ezzati, Mohamed Bencheikh, Abdessamad Didi   +2 more
exaly   +2 more sources

Photon beam softening coefficients evaluation for a 6 MeV photon beam for an aluminum slab: Monte Carlo study using BEAMnrc Code, DOSXYZnrc Code, and BEAMDP code

Moscow University Physics Bulletin (English Translation of Vestnik Moskovskogo Universiteta, Fizika), 2017
Determination and understanding the photon beam attenuation by the photon beam modifier and the radiation beam softening for clinical use is more important part of material study for the beam modifier enhancements and the linac improvements. A Monte Carlo model was used to simulate 6 MeV photon beams from a Varian Clinac 2100 accelerator with the ...
Mohamed Bencheikh, Jaouad Tajmouati, Abdelmajid Maghnouj   +2 more
exaly   +2 more sources

Monte Carlo simulation of Varian Linac for 6 MV photon beam with BEAMnrc code

Radiation Physics and Chemistry, 2018
Abstract The purpose of this study is to investigate the effects of the initial electron beam parameters on the absorbed dose distribution calculated with EGSnrc Monte Carlo code, for 6 MV photon beam. A proposed methodology for benchmarking the BEAMnrc model of Varian Linac has been used.
Maged Mohammed, T El Bardouni, E Chakir   +2 more
exaly   +2 more sources

VMC versus BEAMnrc: A comparison of simulated linear accelerator heads for photon beams

Medical Physics, 2008
BEAMnrc, a code for simulating medical linear accelerators based on EGSnrc, has been bench-marked and used extensively in the scientific literature and is therefore often considered to be the gold standard for Monte Carlo simulations for radiotherapy ...
E. J. Born, Born, E. J., F. Hasenbalg, Fix, M. K., Born, E J, Mini, R, Fix, M K, I. Kawrakow, M. K. Fix, Hasenbalg, F, Kawrakow, I., Hasenbalg, F., Kawrakow, I, Mini, R., R. Mini   +14 more
exaly   +2 more sources

Evaluation of a commercial VMC++ Monte Carlo based treatment planning system for electron beams using EGSnrc/BEAMnrc simulations and measurements

Physica Medica, 2009
In the present work, Monte Carlo (MC) models of electron beams (energies 4, 12 and 18MeV) from an Elekta SL25 medical linear accelerator were simulated using EGSnrc/BEAMnrc user code.
S Vynckier
exaly   +2 more sources

Study of unflattened photon beams shaped by multileaf collimator using BEAMnrc code

Journal of Radiotherapy in Practice, 2016
AbstractPurposeIn our study basic dosimetric properties of a flattening filter free 6 MV photon beam shaped by multileaf collimators (MLC) is examined using the Monte Carlo (MC) method.Methods and MaterialsBEAMnrc code was used to make a MC simulation model for 6 MV photon beam based on Varian Clinic 600 unique performance linac, operated with and ...
Ankit kajaria, Neeraj Sharma, Shiru Sharma, Satyajit Pradhan, Abhijit Mandal, Lalit M. Aggarwal   +5 more
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