Results 11 to 20 of about 4,632 (208)

Optimization of Variance Reduction Techniques used in EGSnrc Monte Carlo Codes

Journal of Medical Physics, 2018
Monte Carlo (MC) simulations are often used in calculations of radiation transport to enable accurate prediction of radiation-dose, even though the computation is relatively time-consuming.
Sangeetha Shanmugasundaram, S. Chandrasekaran   +1 more
semanticscholar   +5 more sources

Validation study of voxel phantom monte carlo simulations with EGSnrc C++ class library

Brazilian Journal of Radiation Sciences, 2019
The aim of this work is to validate an in-house tool which writes voxel phantoms input files according to EGSnrc C++ class library (egspp) for Monte Carlo simulations.
L. Paixão, B. M. Mendes, T. Fonseca
semanticscholar   +5 more sources

An Efficiency Studying of an Ion Chamber Simulation Using Vriance Reduction Techniques with EGSnrc [PDF]

Journal of Biomedical Physics and Engineering, 2019
Background: Radiotherapy is an important technique of cancer treatment using ionizing radiation. The determination of total dose in reference conditions is an important contribution to uncertainty that could achieve 2%.
Campos L T., Magalhães L A., de Almeida C E V.   +2 more
semanticscholar   +5 more sources

EGSnrc application for IMRT planning.

Reports of Practical Oncology & Radiotherapy, 2020
The aim of this study was to describe a detailed instruction of intensity modulated radiotherapy (IMRT) planning simulation using BEAMnrc-DOSXYZnrc code system (EGSnrc package) and present a new graphical user interface based on MATLAB code (The ...
S. Yani, Ilmi Rizkia, Kamirul Kamirul, M. F. Rhani, M. Haekal, F. Haryanto   +5 more
semanticscholar   +4 more sources

Exposure computational models with voxel phantoms coupled to EGSnrc Monte Carlo code

Brazilian Journal of Radiation Sciences, 2023
In computational dosimetry of ionizing radiation, the energy deposited in radiosensitive organs and tissues is evaluated when an anthropomorphic simulator (phantom) is irradiated using Exposure Computational Models (ECMs). An ECM is a virtual scene with a phantom positioned mathematically relative to a radioactive source.
José Wilson Vieira, Viriato Leal Neto, Pedro Henrique Avelino de Andrade, Alex Cristóvão Holanda de Oliveira, Vanildo Júnior de Melo Lima, Isabelle Viviane Batista de Lacerda, Luís Rodrigo Dandrada, Arykerne Nascimento Casado da Silva, William de Souza Santos, Ivan Eufrázio de Santana, Whoody Alem Wanderley Araripe Farias, Larissa Cristina Silva dos Santos, Fernanda Gonçalves Oliveira, Fernando Roberto de Andrade Lima   +13 more
openaire   +3 more sources

Monte Carlo Simulation for the Radixact™ Tomotherapy Linac Using EGSnrc. [PDF]

J Med Phys
Purpose: When exact information regarding the treatment head and initial electron beam is available, the Monte Carlo (MC) approach can properly simulate any linear accelerator. However, manufacturers seldom offer information such as the incident electron beam’s energy, radial intensity (spot size), or angular spread.
Makrani DS, Nedaei HA, Geraily G, Khorami-Moghaddam A, Banaee N, Jassim H.   +5 more
europepmc   +5 more sources

EGSnrc/BEAMnrc-Based Monte Carlo Simulation of the Gamma Knife 4C versus MCNP Code in Homogeneous Media

Frontiers in Biomedical Technologies, 2020
Purpose: Gamma Knife is applied as a superseded tool for inaccessible lesions surgery delivering a single high dose to a well-defined target through 201 small beams. Monte Carlo simulations can be an appropriate supplementary tool to determine dosimetric
Atefeh Mahmoudi, G. Geraily
semanticscholar   +3 more sources

Charged particle transport in magnetic fields in EGSnrc.

Medical Physics, 2016
PURPOSE To accurately and efficiently implement charged particle transport in a magnetic field in EGSnrc and validate the code for the use in phantom and ion chamber simulations.
V. Malkov, D. Rogers
semanticscholar   +3 more sources

Application of variance reduction techniques in EGSnrc based Monte-Carlo method

Science and Technology Development Journal, 2019
Introduction: Monte Carlo (MC) is considered to be the most accurate method to calculate dose distribution in radiation therapy. However, the limitation of MC simulations is the long calculation time to reach the desired statistical uncertainty in the ...
T. Hoang, T. T. Dương, O. Luong, L. Truong   +3 more
semanticscholar   +3 more sources

Generation of 3D reference dosimetric datasets towards adoption of model-based dose calculations for permanent implant prostate brachytherapy. [PDF]

Med Phys
Abstract Purpose This work aims to create and validate a comprehensive set of test cases and 3D reference dosimetric datasets for model‐based dose calculation algorithms (MBDCAs) in permanent implant prostate brachytherapy. These test cases address the limits of the standard TG‐43 formalism towards improving dose evaluations in prostate cancer ...
Akbari F, Peppa V, Ouellet S, Moghadam N, Oliver S, Gimenez-Alventosa V, Beaulieu L, Vijande J, Thomson RM.   +8 more
europepmc   +2 more sources