Calculation of prompt fission neutron spectrum for super(233)U(n, f) reaction by the semi-empirical method

The prompt fission neutron spectra for the neutron-induced fission of super(233)U for low energy neutrons (below 6 MeV) are calculated using nuclear evaporation theory with a semi-empirical method, in which the partition of the total excitation energy between the fission fragments for the n sub(th)+...

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Bibliographic Details
Published in:Chinese physics C 2014-05, Vol.38 (5), p.054001-1-054001-5
Main Authors: Chen, Yong-Jing, Jia, Min, Liu, Ting-Jin, Shu, Neng-Chuan
Format: Article
Language:English
Subjects:
Energy use
Evaporation
Fission
Mathematical analysis
Neutron spectra
Nuclear fission
Reactions (nuclear)
Spectra
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Summary:The prompt fission neutron spectra for the neutron-induced fission of super(233)U for low energy neutrons (below 6 MeV) are calculated using nuclear evaporation theory with a semi-empirical method, in which the partition of the total excitation energy between the fission fragments for the n sub(th)+ super(233)U fission reactions is determined by the available experimental and evaluation data. The calculated prompt fission neutron spectra agree well with the experimental data. The proportions of high-energy neutrons of prompt fission neutron spectrum versus incident neutron energies are investigated with the theoretical spectra, and the results are consistent with the systematics. The semi-empirical method could be a useful tool for the prompt evaluation of fission neutron spectra.
ISSN:1674-1137
DOI:10.1088/1674-1137/38/5/054001