کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
8208503 1532058 2018 15 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Thin NaI(Tl) crystals to enhance the detection sensitivity for molten 241Am sources
موضوعات مرتبط
مهندسی و علوم پایه فیزیک و نجوم تشعشع
پیش نمایش صفحه اول مقاله
Thin NaI(Tl) crystals to enhance the detection sensitivity for molten 241Am sources
چکیده انگلیسی
A thin 5-mm NaI(Tl) scintillator detector was tested with the goal of enhancing the detection efficiency of 241Am gamma and X rays for steelworks operations. The performance of a thin (5 mm) NaI(Tl) detector was compared with a standard 76.2-mm thick NaI(Tl) detector. The 5-mm thick detector crystal results in a 55% smaller background rate at 60 keV compared with the thicker detector, translating into the ability to detect 30% weaker 241Am sources. For a 5 mm thick and 76.2 mm diameter NaI detector in the ladle car tunnel at Outokumpu Tornio Works, the minimum activity of a molten 241Am source that can be detected in 5 s with 95% probability is 9 MBq.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Applied Radiation and Isotopes - Volume 139, September 2018, Pages 121-126
نویسندگان
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