کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1882011 1043188 2007 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Estimation of Argon-41 concentrations in the vicinity of a high-energy medical accelerator
موضوعات مرتبط
مهندسی و علوم پایه فیزیک و نجوم تشعشع
پیش نمایش صفحه اول مقاله
Estimation of Argon-41 concentrations in the vicinity of a high-energy medical accelerator
چکیده انگلیسی

This study presents the estimation of 41Ar concentrations using the neutron activation method. The distribution of thermal neutron flux in a 15 MV medical accelerator (linac) treatment room was determined and contoured by measuring the radioactivities of indium foils irradiated by thermal neutrons. The 41Ar concentrations were calculated based on the spatial distribution of thermal neutrons. The evolution of 41Ar concentration with time in the treatment room was predicted and the corresponding radiation dose associated with 41Ar was derived and shown to be insignificant for both patients and workers, being below the regulatory level. Indium foil activation method showed high detection sensitivity for estimating the low-level 41Ar in the vicinity of medical accelerators, yielding a minimum detectable concentration of less than 10Bqm-3.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Radiation Measurements - Volume 42, Issue 9, October 2007, Pages 1538–1544
نویسندگان
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