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Published in:
2021 | OriginalPaper | Chapter
Investigation of TG-43 Dosimetric Parameters for \(^{192}Ir\) HDR Brachytherapy Source Using FLUKA
Authors : Nacira Hanouf, Deae-eddine Krim, Mustapha Zerfaoui, Dikra Bakari, Abdeslem Rrhioua
Published in: Proceedings of the 2nd International Conference on Electronic Engineering and Renewable Energy Systems
Publisher: Springer Singapore
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Abstract
Brachytherapy dose calculations have been based on the TG-43 formalism since 1995, which considers the irradiated medium to be homogeneous and made up of water. This study aims to determine the TG-43 dosimetry parameters recommended by the AAPM and the dose rate distribution for a GammaMed HDR \(^{192}Ir\) source provided by Varian Medical Systems in water phantom with dimensions of \(20\times 20\times 20 \;\)cm\(^{3}\) using the FLUKA Monte Carlo simulation. The resulting dose rate profiles were compared with data from the Eclipse TPS along the x-axis for \(z = 0.5 \;\)cm, \(z = -0.5 \;\)cm, \(z = 0 \;\)cm, also along the r-axis with \(x = z\), Furthermore, the TG-43 dosimetric parameters were compared with the literature results, where the radial dose function was determined at radial distances ranging from 0.2 to \(8 \;\)cm, and the anisotropy function was determined From 0 to \(10 \;\)cm with a polar angle ranging from \(0 {{}^{\circ }}\) to \(180 {{}^{\circ }}\). Once and for all, our results show that we have a good agreement between simulation results obtained by using FLUKA and the TPS data with a small deviation observed when the radial distance decreases.