Abstract
The mechanism of the formation of the prompt-neutron spectrum in fissioning of 235U and 239Pu by thermal and fast neutrons and spontaneous fission of 252Cf is investigated. A method is proposed for the formation of the prompt-neutron spectrum in fissioning of nuclei as a superposition of three partial Weisskopf evaporation spectra with average neutron energy 0.4, 2.06, and 2.8 MeV.
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Sevast'yanov, V.D., Koshelev, A.S. & Maslov, G.N. Prompt-Neutron Spectrum Formation Mechanism in 235U, 239Pu, and 252Cf Fission. Atomic Energy 91, 739–744 (2001). https://doi.org/10.1023/A:1013396718292
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DOI: https://doi.org/10.1023/A:1013396718292