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A method for determining the intensity of concomitant neutron source D(d, n)3He when studying the characteristics of delayed neutrons from nuclear fission induced by neutrons from reaction T(d, n)4He

  • Nuclear Experimental Technique
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Abstract

A factor that may be responsible for the discrepancies in the total delay neutron yields, the relative yields of separate groups of delayed neutrons, and half-lives of their precursors has been investigated. These discrepancies are shown to be attributable to the effect of a concomitant neutron source—reaction D(d, n)3He. Such a source is unavoidably present in an experiment where reaction T(d, n)4He on a solid-state target is used as a neutron source. A method has been developed to calculate the contribution of neutrons from the reaction D(d, n)3He to the measured total and relative yields of delayed neutrons and the half-lives of their precursors in heavy nuclei fission induced by neutrons with energies of 14–18 MeV. The energy dependence of the parameters of delayed neutron groups from the neutron-induced fission of 238U nuclei in the energy range of 14.2–17.9 MeV is presented.

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Authors and Affiliations

  1. Institute of Physics and Power Engineering, pl. Bondarenko 1, Obninsk, Kaluga oblast, 249033, Russia

    V. M. Piksaikin, V. A. Roshchenko & G. G. Korolev

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  1. V. M. Piksaikin
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  2. V. A. Roshchenko
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  3. G. G. Korolev
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Additional information

Original Russian Text © V.M. Piksaikin, V.A. Roshchenko, G.G. Korolev, 2006, published in Pribory i Tekhnika Eksperimenta, 2006, No. 6, pp. 43–49.

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Piksaikin, V.M., Roshchenko, V.A. & Korolev, G.G. A method for determining the intensity of concomitant neutron source D(d, n)3He when studying the characteristics of delayed neutrons from nuclear fission induced by neutrons from reaction T(d, n)4He. Instrum Exp Tech 49, 778–784 (2006). https://doi.org/10.1134/S0020441206060042

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  • DOI: https://doi.org/10.1134/S0020441206060042

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