514 Influence of initial electron beam characteristics on Monte Carlo calculated absorbed dose distribution for linac photon beam

2003 ◽  
Vol 1 (5) ◽  
pp. S156
Author(s):  
A. Tzedakis ◽  
J. Damilakis ◽  
M. Mazonakis ◽  
J. Stratakis ◽  
H. Varveris ◽  
...  
Keyword(s):  
Monte Carlo ◽  
Electron Beam ◽  
Dose Distribution ◽  
Absorbed Dose ◽  
Photon Beam ◽  
Initial Electron ◽  
Beam Characteristics

Benchmarking of Monte Carlo model of Siemens Oncor® linear accelerator for 18MV photon beam: Determination of initial electron beam parameters

2020 ◽  
Vol 27 (6) ◽  
pp. 1047-1070
Author(s):  
Milad Najafzadeh ◽  
Mojtaba Hoseini-Ghafarokhi ◽  
Rezgar Shahi Mayn Bolagh ◽  
Mohammad Haghparast ◽  
Shiva Zarifi ◽  
...  
Keyword(s):  
Monte Carlo ◽  
Electron Beam ◽  
Linear Accelerator ◽  
Monte Carlo Model ◽  
Photon Beam ◽  
Initial Electron ◽  
Beam Parameters

Decoupling initial electron beam parameters for Monte Carlo photon beam modelling by removing beam-modifying filters from the beam path

2005 ◽  
Vol 50 (24) ◽  
pp. 5935-5951 ◽  
Author(s):  
B De Smedt ◽  
N Reynaert ◽  
F Flachet ◽  
M Coghe ◽  
M G Thompson ◽  
...  
Keyword(s):  
Monte Carlo ◽  
Electron Beam ◽  
Photon Beam ◽  
Beam Path ◽  
Initial Electron ◽  
Beam Parameters

Influence of initial electron beam parameters on Monte Carlo calculated absorbed dose distributions for radiotherapy photon beams

2004 ◽  
Vol 31 (4) ◽  
pp. 907-913 ◽  
Author(s):  
Antonis Tzedakis ◽  
John E. Damilakis ◽  
Michael Mazonakis ◽  
John Stratakis ◽  
Haralambos Varveris ◽  
...  
Keyword(s):  
Monte Carlo ◽  
Electron Beam ◽  
Absorbed Dose ◽  
Photon Beams ◽  
Dose Distributions ◽  
Initial Electron ◽  
Beam Parameters

SU-FF-T-103: Clinical Electron Beam Characteristics Investigations Using the Monte Carlo Method for Absorbed Dose Determination

2007 ◽  
Vol 34 (6Part8) ◽  
pp. 2424-2424
Author(s):  
H Yoriyaz ◽  
P Siqueira ◽  
M Poli ◽  
L Furnari ◽  
R Rubo ◽  
...  
Keyword(s):  
Monte Carlo ◽  
Electron Beam ◽  
Monte Carlo Method ◽  
Absorbed Dose ◽  
Dose Determination ◽  
The Monte Carlo Method ◽  
Beam Characteristics

36 Monte Carlo simulation of absorbed dose distribution for electron beam using GATE/GEANT4

2018 ◽  
Vol 56 ◽  
pp. 21
Author(s):  
J. Leste ◽  
T. Younes ◽  
M. Chauvin ◽  
L. Vieillevigne ◽  
M. Bardies ◽  
...  
Keyword(s):  
Monte Carlo Simulation ◽  
Monte Carlo ◽  
Electron Beam ◽  
Dose Distribution ◽  
Absorbed Dose

Effects of density from various hip prosthesis materials on 6 MV photon beam: a Monte Carlo study

2017 ◽  
Vol 16 (2) ◽  
pp. 155-160
Author(s):  
M. Z. Abdul Aziz ◽  
F. N. Mohd Kamarulzaman ◽  
N. A. S. Mohd Termizi ◽  
N. Abdul Raof ◽  
A. A. Tajuddin
Keyword(s):  
Monte Carlo ◽  
Dose Distribution ◽  
Hip Prosthesis ◽  
Absorbed Dose ◽  
Monte Carlo Study ◽  
Ct Images ◽  
Photon Beam ◽  
Radiotherapy Planning ◽  
Depth Dose ◽  
The Impact

AbstractIn radiotherapy planning, computed tomography (CT) images are used to calculate the dose in the patient. However, a high density hip prosthesis can cause streaking artefacts in CT images, which make dose calculations for nearby organs inaccurate. This study aim to quantify the impact of a hip prosthesis on 6 MV photon beam dose distribution using the Monte Carlo (MC) simulation. To quantify the radiation dose at the hip prosthesis accurately, image processing techniques were used to generate CT images free from streak artefacts. MATLAB software was used to produce computer-generated phantoms consisting of bone, titanium, stainless steel and CoCrMo. Percentage depth dose (PDD) and beam profile were used to analyse the impact of the hip prosthesis on the dose distribution of the photon beam. PDD showed that the absorbed dose was reduced as the density of the material increased, and the dose was reduced by as much as 49% when the photon beam struck the highest density material (CoCrMo, 8·2g/cm3). However, dose was increased at the tissue-hip prosthesis interface (depths of 4 and 19cm). As the depth increased, the absorbed dose decreased due to attenuation of photons by the tissue and the metal.

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