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Measurement of delayed-neutron yield from 237Np fission induced by thermal neutrons

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Abstract

The delayed-neutron yield from thermal-neutron-induced fission of the 237Np nucleus was measured using a sample periodically exposed to a pulsed neutron beam with subsequent detection of neutrons during the time intervals between pulses. The experiment was realized on an Isomer-M setup mounted in the IBR-2 pulsed reactor channel equipped with a mirror neutron guide. The setup and the experimental procedure are described, the background sources are thoroughly analyzed, and the experimental data are presented. The total delayed-neutron yield from 237Np fission induced by thermal neutrons is ν d = 0.0110 ± 0.0009. This study was performed at the Frank Laboratory of Neutron Physics (JINR, Dubna).

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Authors and Affiliations

  1. Joint Institute for Nuclear Research, Dubna, Moscow oblast, 141980, Russia

    N. A. Gundorin, K. V. Zhdanova, V. E. Zhuchko, L. B. Pikelner, N. V. Rebrova, I. M. Salamatin, V. I. Smirnov & V. I. Furman

Authors
  1. N. A. Gundorin
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  2. K. V. Zhdanova
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  3. V. E. Zhuchko
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  4. L. B. Pikelner
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  5. N. V. Rebrova
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  6. I. M. Salamatin
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  7. V. I. Smirnov
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  8. V. I. Furman
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Additional information

Original Russian Text © N.A. Gundorin, K.V. Zhdanova, V.E. Zhuchko, L.B. Pikelner, N.V. Rebrova, I.M. Salamatin, V.I. Smirnov, V.I. Furman, 2007, published in Yadernaya Fizika, 2007, Vol. 70, No. 6, pp. 1011–1018.

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Gundorin, N.A., Zhdanova, K.V., Zhuchko, V.E. et al. Measurement of delayed-neutron yield from 237Np fission induced by thermal neutrons. Phys. Atom. Nuclei 70, 975–982 (2007). https://doi.org/10.1134/S1063778807060014

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  • DOI: https://doi.org/10.1134/S1063778807060014

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