کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5498023 1532076 2017 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Optimization of an underwater in-situ LaBr3:Ce spectrometer with energy self-calibration and efficiency calibration
موضوعات مرتبط
مهندسی و علوم پایه فیزیک و نجوم تشعشع
پیش نمایش صفحه اول مقاله
Optimization of an underwater in-situ LaBr3:Ce spectrometer with energy self-calibration and efficiency calibration
چکیده انگلیسی
An underwater in-situ gamma-ray spectrometer based on LaBr3:Ce was developed and optimized to monitor marine radioactivity. The intrinsic background mainly from 138La and 227Ac of LaBr3:Ce was well determined by low background measurement and pulse shape discrimination method. A method of self-calibration using three internal contaminant peaks was proposed to eliminate the peak shift during long-term monitoring. With experiments under different temperatures, the method was proved to be helpful for maintaining long-term stability. To monitor the marine radioactivity, the spectrometer's efficiency was calculated via water tank experiment as well as Monte Carlo simulation.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Applied Radiation and Isotopes - Volume 121, March 2017, Pages 101-108
نویسندگان
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