کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
8209177 1532082 2016 16 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Study on patient-induced radioactivity during proton treatment in hengjian proton medical facility
ترجمه فارسی عنوان
مطالعه رادیواکتیویتی ناشی از بیمار در طول پروتئون در مرکز پزشکی پرون هنینجیان
موضوعات مرتبط
مهندسی و علوم پایه فیزیک و نجوم تشعشع
چکیده انگلیسی
At present, increasingly more proton medical facilities have been established globally for better curative effect and less side effect in tumor treatment. Compared with electron and photon, proton delivers more energy and dose at its end of range (Bragg peak), and has less lateral scattering for its much larger mass. However, proton is much easier to produce neutron and induced radioactivity, which makes radiation protection for proton accelerators more difficult than for electron accelerators. This study focuses on the problem of patient-induced radioactivity during proton treatment, which has been ignored for years. However, we confirmed it is a vital factor for radiation protection to both patient escort and positioning technician, by FLUKA's simulation and activation formula calculation of Hengjian Proton Medical Facility (HJPMF), whose energy ranges from 130 to 230 MeV. Furthermore, new formulas for calculating the activity buildup process of periodic irradiation were derived and used to study the relationship between saturation degree and half-life of nuclides. Finally, suggestions are put forward to lessen the radiation hazard from patient-induced radioactivity.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Applied Radiation and Isotopes - Volume 115, September 2016, Pages 235-250
نویسندگان
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