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Activation Constants for Slowpoke and MNS Reactors Calculated from the Neutron Spectrum and k0 and Q0 Values

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Abstract

The relative thermal, epithermal and fast neutron fluxes were measured in the inner and outer irradiation sites of three Slowpoke reactors and one Miniature Neutron Source (MNS) reactor by the bare triple monitor method. Using the measured neutron spectrum parameters and a compilation of published k 0 and Q 0 values, activation constants were calculated for the most intense gamma-rays of all nuclides commonly used in NAA. The resulting table of constants can be used to standardize NAA measurements for all elements when combined with relative efficiency measurements and the measurement of the thermal neutron flux with one standard. The observed constancy of the neutron spectra suggests that these activation constants are valid for all 14 Slowpoke and MNS reactors.

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Authors and Affiliations

  1. Ecole Polytechnique, P.O.Box 6079, Downtown, Montreal, Quebec, H3C 3A7, Canada

    G. Kennedy & J. St-Pierre

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

    K. Wang & Y. Zhang

  3. International Centre for Environmental and Nuclear Sciences, University of the West Indies, Mona, Kingston 7, Jamaica

    J. Preston, C. Grant & M. Vutchkov

Authors
  1. G. Kennedy
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  2. J. St-Pierre
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  3. K. Wang
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  4. Y. Zhang
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  5. J. Preston
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  6. C. Grant
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  7. M. Vutchkov
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Kennedy, G., St-Pierre, J., Wang, K. et al. Activation Constants for Slowpoke and MNS Reactors Calculated from the Neutron Spectrum and k0 and Q0 Values. Journal of Radioanalytical and Nuclear Chemistry 245, 167–172 (2000). https://doi.org/10.1023/A:1006749820638

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  • DOI: https://doi.org/10.1023/A:1006749820638

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