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Method for calculation the absolute dose in the Monte Carlo simulation
Author(s) -
Oanh Thi Luong,
Luong Thanh Dang,
Dương Thanh Tài
Publication year - 2019
Publication title -
science and technology development journal - natural sciences
Language(s) - English
Resource type - Journals
ISSN - 2588-106X
DOI - 10.32508/stdjns.v2i5.783
Subject(s) - monte carlo method , imaging phantom , homogeneous , ionization chamber , nuclear medicine , linear particle accelerator , physics , photon , computational physics , materials science , mathematics , ion , optics , beam (structure) , medicine , statistics , statistical physics , quantum mechanics , ionization
In this study, we presented the method for calculation the absolute dose in the Monte Carlo simulation following the prescription of Popescu et al for the 6 MV photon energy. The BEAMnrc was used to simulate 6 MV photon beams from a Siemens Primus M5497 linear accelerator at DongNai general hospital. The DOSXYZnrc was then used to calculate the dose distribution in a homogeneous phantom (in form of CT images). The absolute dose obtained from the MC and TPS were compared with measured ones using an ion chamber (Farmer Type Chamber FC65-P, IBA). The average doses discrepancy between the simulated and measured dose was 0.53±0.37% and between the simulated and TPS was 1.00±0.51%. Results showed good agreement between simulated, measured and calculated dosed on a homogeneous phantom.

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