On-line experiments on rapid detection of radionuclides based on sequential Bayesian analysis

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• 作者：Qingpei Xiang ; Zhonghai Wang ; Dongfeng Tian…
• 关键词：Sequential Bayesian analysis ; LaBr3(Ce) detector ; FPGA ; Radionuclide detection ; Detection performance
• 刊名：Journal of Radioanalytical and Nuclear Chemistry
• 出版年：2015
• 出版时间：October 2015
• 年：2015
• 卷：306
• 期：1
• 页码：57-70
• 全文大小：1,784 KB
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• 作者单位：Qingpei Xiang (1)
  Zhonghai Wang (2)
  Dongfeng Tian (1)
  Fanhua Hao (1)
  Jun Zeng (1)
  Fei Luo (1)
  
  1. Institute of Nuclear Physics and Chemistry, China Academy of Engineering Physics, Mian-shan Road, Mianyang, 621900, China
  2. College of Physical Science and Technology, Sichuan University, Wang-jiang Road, Chengdu, 610064, China
  
• 刊物类别：Chemistry and Materials Science
• 刊物主题：Chemistry
  Nuclear Chemistry
  Physical Chemistry
  Nuclear Physics, Heavy Ions and Hadrons
  Diagnostic Radiology
  Inorganic Chemistry
  
• 出版者：Akad茅miai Kiad贸, co-published with Springer Science+Business Media B.V., Formerly Kluwer Academic
• ISSN：1588-2780

文摘

A rapid detection method based on sequential Bayesian analysis provides a new perspective on national security in preventing the smuggling and illegal transportation of nuclear materials. In this paper, a sequential Bayesian analysis system, which mainly consists of a LaBr₃(Ce) scintillator detector, a pulse analyzer based on a field-programmable gate array technique, and a sequential Bayesian analysis processor, is developed to directly validate the feasibility of sequential Bayesian analysis. The detection ability of 60Co, 137Cs, 133Ba, and 152Eu for a specific radioactivity is studied and quantified using the maximum detection distance and the equivalent minimum detection activity. Keywords Sequential Bayesian analysis LaBr₃(Ce) detector FPGA Radionuclide detection Detection performance