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 ›› 1991, Vol. 2 ›› Issue (2): 71

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DEVELOPMENT AND APPLICATIONS OF AN ON-LINE THERMAL NEUTRON PROMPT—GAMMA ELEMENT ANALYSIS SYSTEM

Liu Yuren (刘雨人)1, Lu Yunxin (卢允信)1, Xie Yali (谢亚丽) Wang Yonghai (王永海) Du Youling (杜幼玲)1, Tan Jin (谈 进)1, Meng Bonian (孟伯年)1, R.S.Seymour2   

  1. 1 Henan Joint Center for the Development of Industrial Application of Nuclear Instruments, Zhengzhou 450003. China;
    2 EG&G ORTEC, 100 Midland Road, Oak Ridge, TN37830, USA
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Liu Yuren (刘雨人), Lu Yunxin (卢允信), Xie Yali (谢亚丽) Wang Yonghai (王永海) Du Youling (杜幼玲), Tan Jin (谈 进), Meng Bonian (孟伯年), R.S.Seymour. DEVELOPMENT AND APPLICATIONS OF AN ON-LINE THERMAL NEUTRON PROMPT—GAMMA ELEMENT ANALYSIS SYSTEM.Nuclear Science and Techniques, 1991, 2(2): 71

Abstract: This paper introduces the principles, instrumentation, implementation, and industrial applications of an on-line thermal neutron prompt- gamma element analysis system (using a 252Cf neutron source, Am- Be neutron source, or neutron generator). The energy resolution of the system at the H prompt- gamma full- energy photopeak (2.22325 MeV) is 3.6 keV. The concentration measurement error of Al2O3, Fe2O3 CaO and SiO2 is +0.3%, +0.1%. +0.4% and +0.4%, respectively.
The system has been tested on~ site at both the Shandong and the Zhengzhou Aluminum Works. Our preliminary on- site measurements confirm that the stability, reliability, measurement range, and accuracy of the system can meet the requirements of the aluminum production process. Facilitation of this measurement at aluminum plants is expected to reduce plant costs by over 3 million dollars annually through reduced energy consumption, more rapid qualification of pulps being mixed during the production process, and in reduced labor costs.

Key words: Prompt- gamma, Neutron activation analysis, On-line, Aluminum, Pulp