Nuclear Science and Techniques

《核技术》(英文版) ISSN 1001-8042 CN 31-1559/TL     2019 Impact factor 1.556

Nuclear Science and Techniques ›› 2011, Vol. 22 ›› Issue (5): 287-292 doi: 10.13538/j.1001-8042/nst.22.287-292

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Design of a prompt-gamma neutron activation analysis system on China Advanced Research Reactor

SUN Hongchao~(1,*) NI Bangfa~1 XIAO Caijin~1 ZHANG Guiying~1 LIU Cunxiong~1 HUANG Jinfeng~2   

  1. 1 China Institute of Atomic Energy,Beijing 102413,China 2 GuangXi University,Guangxi 530004,China
SUN Hongchao, NI Bangfa, XIAO Caijin, ZHANG Guiying, LIU Cunxiong, HUANG Jinfeng. Design of a prompt-gamma neutron activation analysis system on China Advanced Research Reactor.Nuclear Science and Techniques, 2011, 22(5): 287-292     doi: 10.13538/j.1001-8042/nst.22.287-292

Abstract:

In this paper,computational methods are used to optimize the design of a prompt-gamma neutron activation analysis(PGNAA) system on China Advanced Research Reactor(CARR).Approaches are adopted for obtaining accurate neutron beam parameter and saving the computing time.For the radiation shielding design,the optimizing factors include the cost,weight,volume,machining convenience and background radiation at the detector position.Low background spectrum and high sensitivity are expected.The simulation results,and experiences from international PGNAA community,were used in the design of the CARR PGNAA system.

Key words: Prompt gamma activation analysis, PGAA Facility, Neutron Cross-section, Shielding