TY - JOUR
T1 - Therapeutic dose simulation of a 6 MV Varian Linac photon beam using GEANT4
AU - Salama, E.
AU - Ali, A. S.
AU - Khaled, N. E.
AU - Radi, A.
N1 - Publisher Copyright:
© 2015 IOP Publishing Ltd and Sissa Medialab srl.
PY - 2015/10/27
Y1 - 2015/10/27
N2 - A developed program in C++ language using GEANT4 libraries was used to simulate the gantry of a 6 MV high energy photon linear accelerator (Linac). The head of a clinical linear accelerator based on the manufacturer's detailed information is simulated. More than 2× 109 primary electrons are used to create the phase space file. Evaluation of the percentage depth dose (PDD) and flatness symmetry (lateral dose profiles) in water phantom were performed. Comparisons between experimental and simulated data were carried out for three field sizes; 5 × 5, 10 × 10 and 15 × 15 cm2. A relatively good agreement appeared between computed and measured PDD. Electron contamination and spatial distribution for both photons and electrons in the simulated beam are evaluated. Moreover, the obtained lateral dose profiles at 15, 50, and 100 mm depth are compatible with the measured values. The obtained results concluded that, GEANT4 code is a promising applicable Monte Carlo program in radiotherapy applications.
AB - A developed program in C++ language using GEANT4 libraries was used to simulate the gantry of a 6 MV high energy photon linear accelerator (Linac). The head of a clinical linear accelerator based on the manufacturer's detailed information is simulated. More than 2× 109 primary electrons are used to create the phase space file. Evaluation of the percentage depth dose (PDD) and flatness symmetry (lateral dose profiles) in water phantom were performed. Comparisons between experimental and simulated data were carried out for three field sizes; 5 × 5, 10 × 10 and 15 × 15 cm2. A relatively good agreement appeared between computed and measured PDD. Electron contamination and spatial distribution for both photons and electrons in the simulated beam are evaluated. Moreover, the obtained lateral dose profiles at 15, 50, and 100 mm depth are compatible with the measured values. The obtained results concluded that, GEANT4 code is a promising applicable Monte Carlo program in radiotherapy applications.
KW - Accelerator modelling and simulations (multi-particle dynamics
KW - Instrumentation for particle accelerators and storage rings - high energy (linear accelerators synchrotrons)
KW - Interaction of radiation with matter
KW - Radiotherapy concepts
KW - single-particle dynamics)
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U2 - 10.1088/1748-0221/10/10/T10008
DO - 10.1088/1748-0221/10/10/T10008
M3 - Article
AN - SCOPUS:84947087763
SN - 1748-0221
VL - 10
JO - Journal of Instrumentation
JF - Journal of Instrumentation
IS - 10
M1 - T10008
ER -