Simulation of the 6 MV Elekta Synergy Platform linac photon beam using Geant4 Application for Tomographic Emission

被引：14

作者：

Didi, Samir ^{[1
,2
]}

Moussa, Abdelilah ^{[1
,3
]}

Yahya, Tayalati ^{[1
]}

Mustafa, Zerfaoui ^{[1
,2
]}

机构：

[1] Univ Mohammed First, Fac Sci, Lab Phys Radiat & Matter, Dept Phys, Oujda 60000, Morocco

[2] Reg Hassan II Oncol Ctr, Dept Phys, Oujda 60000, Morocco

[3] Natl Sch Appl Sci Al Hoceima, Dept Phys, Al Hoceima, Morocco

来源：

JOURNAL OF MEDICAL PHYSICS | 2015年 / 40卷 / 03期

关键词：

Geant4 Application for Tomographic Emission/Geant4; grid; Monte Carlo; radiotherapy;

D O I：

10.4103/0971-6203.165077

中图分类号：

R8 [特种医学]; R445 [影像诊断学];

学科分类号：

1002 ; 100207 ; 1009 ;

摘要：

The present work validates the Geant4 Application for Tomographic Emission Monte Carlo software for the simulation of a 6 MV photon beam given by Elekta Synergy Platform medical linear accelerator treatment head. The simulation includes the major components of the linear accelerator (LINAC) with multi-leaf collimator and a homogeneous water phantom. Calculations were performed for the photon beam with several treatment field sizes ranging from 5 cm x 5 cm to 30 cm x 30 cm at 100 cm distance from the source. The simulation was successfully validated by comparison with experimental distributions. Good agreement between simulations and measurements was observed, with dose differences of about 0.02% and 2.5% for depth doses and lateral dose profiles, respectively. This agreement was also emphasized by the KolmogorovuSmirnov goodness-of-fit test and by the gamma-index comparisons where more than 99% of the points for all simulations fulfill the quality assurance criteria of 2 mm/2%.

引用

页码：136 / 143

页数：8

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