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Iranian Journal of Medical Physics، جلد ۱۲، شماره ۲، صفحات ۷۰-۷۷
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عنوان انگلیسی Secondary Particles Produced by Hadron Therapy
چکیده انگلیسی مقاله Introduction Use of hadron therapy as an advanced radiotherapy technique is increasing. In this method, secondary particles are produced through primary beam interactions with the beam-transport system and the patient’s body. In this study, Monte Carlo simulations were employed to determine the dose of produced secondary particles, particularly neutrons during treatment. Materials and Methods In this study, secondary particles, produced by proton and ion beams, were simulated for a cancer treatment plan. In particular, we evaluated the distribution of secondary neutrons, produced by a 400 MeV/u carbon beam on an electronic crate, which was exposed to radiation field under radioactive conditions. The level of major secondary particles, particularly neutrons, irradiating the target, was evaluated, using FLUKA Monte Carlo code. Results The fluences and radiation doses were applied to determine the shielding efficiency of devices and the probability of radiation damage to nearby electronic systems. According to the results, by using maximum-energy carbon ions (400 MeV/u), electronic devices are exposed to a dose rate of 0.05 µSv/s and an integrated dose of about 34 mSv, each year. Conclusion The simulation results could provide significant information about radiation assessment; they could also be a major help for clinical facilities to meet shielding requirements. Moreover, such simulations are essential for determining the radiation level, which is responsible for radiation-induced damages.
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نویسندگان مقاله عبدالکاظم انصاری نژاد | abdolkazem ansarinejad
physics and accelerators research school, nuclear science and technology research institute, tehran, iran
نشانی اینترنتی http://ijmp.mums.ac.ir/article_4768.html
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زبان مقاله منتشر شده en
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نوع مقاله منتشر شده Original Paper
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