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Epithermal neutron activation analysis and its application in the Miniature Neutron Source Reactor

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Abstract

The cadmium and boron ratios from 44 elements, totally 66 nuclides, were determined in the inner and outer irradiation sites of the Miniature Neutron Source Reactor (MNSR). China Institute of Atomic Energy. A permanent Cd-shielded epithermal neutron irradiation site has been designed and installed in the outer of the beryllium reflector of this reactor. Elements e.g., I, Br, Sr, Si, Th and U in biological samples, such as foodstuff, water and blood, geological and environmental samples, such as soil, rock, sediment and vegetable leaves were analyzed by BN-shielded epithermal neutron activation analysis (ENAA), and Au, As, Sb, Th and U by Cd-shielded ENAA. The results show that the detection limits of these elements by ENAA are better by a factor of 1.5–7 than those with conventional NAA.

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Authors and Affiliations

  1. Institute of High Energy Physics and Laboratory of Nuclear Analytical Techniques Academia Sinica, P.O. Box 2732, 100080, Beijing, P.R. China

    Xiaolin Hou

  2. Institute of Atomic Energy, P.O. Box 275(75), 102413, Beijing, P.R. China

    Ke Wang & Chifang Chai

Authors
  1. Xiaolin Hou
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  2. Ke Wang
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  3. Chifang Chai
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Hou, X., Wang, K. & Chai, C. Epithermal neutron activation analysis and its application in the Miniature Neutron Source Reactor. Journal of Radioanalytical and Nuclear Chemistry Articles 210, 137–148 (1996). https://doi.org/10.1007/BF02055413

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  • DOI: https://doi.org/10.1007/BF02055413

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