Dose-Area Product Determination and Beam Monitor Calibration for the Fixed Beam of the Shanghai Advanced Proton Therapy Facility
نویسندگان
چکیده
Research conducted to-date, makes use of the IBA-Lynx scintillating screen and radiochromic film to analyze proton field uniformity for dose-area product (DAP) determination. In this paper, machine log file based reconstruction is proposed calculate simplify measurement. order uniformity, dose distribution reconstructed on with matRad (an open source software analytical calculation in MATLAB). After acquisition distribution, flatness symmetry are calculated automatically different energies. A comprehensive comparison DAP determined Bragg peak chamber (BPC) Markus (MC) presented. The actual delivered lateral scanned field. energies ranging from 70.6 MeV 235 MeV. percentage difference calculated, illustrating discrepancy between MC BPC mean value. ranges −0.19% 1.26%. variation measured peaks at −2.5%. can be an alternative direct method using a large-area investigated. two methods determine calibrate beam monitor illustrate consistent results.
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ژورنال
عنوان ژورنال: Applied sciences
سال: 2022
ISSN: ['2076-3417']
DOI: https://doi.org/10.3390/app12094111