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Prompt-fission-neutrons spectra of {sup 238}U

Journal Article · · Physics of Atomic Nuclei
 [1]
  1. Joint Institute of Nuclear and Energy Research (Belarus)

The spectra of prompt fission neutrons from the reaction {sup 238}U(n, F) for neutrons of energy in the range E{sub n} {<=} 20 MeV are interpreted within the statistical model. It is shown that exclusive spectra of prefission neutrons emitted in (n, xnf) reactions play a decisive role in describing the observed promptfission-neutron spectra and determine the average energies of prompt-fission neutrons. The dependence of the effect of prefission neutrons on the fissility of a target nucleus is demonstrated for the reactions {sup 232}Th(n, F), {sup 235}U(n, F), and {sup 239}Pu(n, F).

OSTI ID:
22028221
Journal Information:
Physics of Atomic Nuclei, Journal Name: Physics of Atomic Nuclei Journal Issue: 1 Vol. 71; ISSN 1063-7788; ISSN PANUEO
Country of Publication:
United States
Language:
English

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