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
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
فیزیک و نجوم
تشعشع
پیش نمایش صفحه اول مقاله
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
Journal: Applied Radiation and Isotopes - Volume 121, March 2017, Pages 101-108
نویسندگان
Zhi Zeng, Xingyu Pan, Hao Ma, Jianhua He, Jirong Cang, Ming Zeng, Yuhao Mi, Jianping Cheng,