open access

Vol 15, No 3 (2010)
Untitled
Published online: 2010-05-01
Submitted: 2009-11-27
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Measurement of depth-dose of linear accelerator and simulation by use of Geant4 computer code

D. Sardari, R. Maleki, H. Samavat, A. Esmaeeli
DOI: 10.1016/j.rpor.2010.03.001
·
Rep Pract Oncol Radiother 2010;15(3):64-68.

open access

Vol 15, No 3 (2010)
Untitled
Published online: 2010-05-01
Submitted: 2009-11-27

Abstract

Radiation therapy is an established method of cancer treatment. New technologies in cancer radiotherapy need a more accurate computation of the dose delivered in the radiotherapy treatment plan. This study presents some results of a Geant4-based application for simulation of the absorbed dose distribution given by a medical linear accelerator (LINAC). The LINAC geometry is accurately described in the Monte Carlo code with use of the accelerator manufacturer's specifications. The capability of the software for evaluating the dose distribution has been verified by comparisons with measurements in a water phantom; the comparisons were performed for percentage depth dose (PDD) and profiles for various field sizes and depths, for a 6-MV electron beam. Experimental and calculated dose values were in good agreement both in PDD and in transverse sections of the water phantom.

Abstract

Radiation therapy is an established method of cancer treatment. New technologies in cancer radiotherapy need a more accurate computation of the dose delivered in the radiotherapy treatment plan. This study presents some results of a Geant4-based application for simulation of the absorbed dose distribution given by a medical linear accelerator (LINAC). The LINAC geometry is accurately described in the Monte Carlo code with use of the accelerator manufacturer's specifications. The capability of the software for evaluating the dose distribution has been verified by comparisons with measurements in a water phantom; the comparisons were performed for percentage depth dose (PDD) and profiles for various field sizes and depths, for a 6-MV electron beam. Experimental and calculated dose values were in good agreement both in PDD and in transverse sections of the water phantom.

Get Citation

Keywords

Monte Carlo simulation; Geant4; Radiotherapy; Linear accelerator; Depth-dose curve

About this article
Title

Measurement of depth-dose of linear accelerator and simulation by use of Geant4 computer code

Journal

Reports of Practical Oncology and Radiotherapy

Issue

Vol 15, No 3 (2010)

Pages

64-68

Published online

2010-05-01

DOI

10.1016/j.rpor.2010.03.001

Bibliographic record

Rep Pract Oncol Radiother 2010;15(3):64-68.

Keywords

Monte Carlo simulation
Geant4
Radiotherapy
Linear accelerator
Depth-dose curve

Authors

D. Sardari
R. Maleki
H. Samavat
A. Esmaeeli

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