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Energy spectra of neutrons escaping from light and heavy fragments with asymmetric 235U and 252Cf nuclear fission

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Abstract

The neutron-activation analysis is used to determine the energy spectra of neutrons escaping from light and heavy fragments from nuclear fission of 235U by thermal neutrons and spontaneous fission of 252Cf nuclei. It is shown that the difference of the spectra obtained is slight, ∼90.6 keV. The 28-group energy spectra of instantaneous neutrons from fission of 235U and 252Cf nuclei, which were reconstructed using four-component a priori spectra, are presented.

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Authors and Affiliations

  1. All-Russia Scientific Research Institute of Physicotechnical and Radio Engineering Measurements (VNIIFTRI), Mendeleevo, Moscow oblast, 141570, Russia

    V. D. Sevast’yanov

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  1. V. D. Sevast’yanov
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Original Russian Text © V.D. Sevast’yanov, 2010, published in Pribory i Tekhnika Eksperimenta, 2010, No. 6, pp. 11–15.

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Sevast’yanov, V.D. Energy spectra of neutrons escaping from light and heavy fragments with asymmetric 235U and 252Cf nuclear fission. Instrum Exp Tech 53, 783–787 (2010). https://doi.org/10.1134/S0020441210060023

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  • DOI: https://doi.org/10.1134/S0020441210060023

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