Nuclear Science and Techniques

《核技术》(英文版) ISSN 1001-8042 CN 31-1559/TL     2018 Impact factor 0.961

Nuclear Science and Techniques ›› 2004, Vol. 15 ›› Issue (2): 119

• ADVANCED NUCLEAR INSTRUMENTATION AND DETECTION • Previous Articles     Next Articles

Progress of neutron induced prompt gamma analysis technique in 1988~2003

JING Shi-Wei,1,2 LIU Yu-Ren,1 CHI Yan-Tao,1 TIAN Yu-Bing,1 CAO Xi-Zheng,1 ZHAO Xin-Hui,1 REN Wan-Bin,1 LIU Lin-Mao1   

  1. 1Physics Department, Northeast Normal University, Changchun 130024;
    2Key Laboratory of Excited State Processes of Chinese Academy of Sciences, Changchun Institute of Optics, Fine Mechanics and
    Physics, the Chinese Academy of Sciences, Changchun 130033
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JING Shi-Wei, LIU Yu-Ren, CHI Yan-Tao, TIAN Yu-Bing, CAO Xi-Zheng, ZHAO Xin-Hui, REN Wan-Bin, LIU Lin-Mao. Progress of neutron induced prompt gamma analysis technique in 1988~2003.Nuclear Science and Techniques, 2004, 15(2): 119

Abstract: This paper describes new development of the neutron induced prompt gamma-ray analysis (NIPGA) technology in 1988~2003. The pulse fast-thermal neutron activation analysis method, which utilized the inelastic reaction and capture reaction jointly, was employed to measure the elemental contents more efficiently. Lifetime of the neutron generator was more than 10000 h and the performance of detector and MCA reached a high level. At the same time, Monte Carlo library least-square method was used to solve the nonlinearity problem in the NIPGA.

Key words: Inelastic scattering, Thermal neutron capture, Neutron induced prompt gamma-ray, On-line element
analysis,
Monte Carlo simulation