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Investigation of Dose Distribution in Mixed Neutron-Gamma Field of Boron Neutron Capture Therapy using N -Isopropylacrylamide Gel

E. BavarneginDepartment of Physics, University of Guilan, P.O. Box 1841, Namjoo Street, Rasht, IranH. KhalafiDepartment of Physics, University of Guilan, P.O. Box 1841, Namjoo Street, Rasht, IranAlireza SadremomtazNuclear Science and Technology Research Institute (NSTRI), P.O. Box 14395-836, North Kargar Street, Tehran, IranYaser KasesazDepartment of Physics, University of Guilan, P.O. Box 1841, Namjoo Street, Rasht, IranAzim KhajealiFaculty of Medicine, Department of Medical Physics, Tabriz University of Medical Sciences, P.O. Box 5165665931, Golgasht Street, Tabriz, Iran

2016en

ABI

Annotatsiya

Gel dosimeters have unique advantages in comparison with other dosimeters. Until now, these gels have been used in different radiotherapy techniques as a reliable dosimetric tool. Because dose distribution measurement is an important factor for appropriate treatment planning in different radiotherapy techniques, in this study, we evaluated the ability of the N-isopropylacrylamide (NIPAM) polymer gel to record the dose distribution resulting from the mixed neutron-gamma field of boron neutron capture therapy (BNCT). In this regard, a head phantom containing NIPAM gel was irradiated using the Tehran Research Reactor BNCT beam line, and then by a magnetic resonance scanner. Eventually, the R2 maps were obtained in different slices of the phantom by analyzing T2-weighted images. The results show that NIPAM gel has a suitable potential for recording three-dimensional dose distribution in mixed neutron-gamma field dosimetry.

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DOI: 10.1016/j.net.2016.07.012

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