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

CHEN Yong-Jing; JIA Min; LIU Ting-Jin; SHU Neng-Chuan

doi:10.1088/1674-1137/38/5/054001

Chinese Physics C> 2014, Vol. 38> Issue(5) : 054001 DOI: 10.1088/1674-1137/38/5/054001

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

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The prompt fission neutron spectra for the neutron-induced fission of ²³³U 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_th+²³³U 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.

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CHEN Yong-Jing, JIA Min, LIU Ting-Jin and SHU Neng-Chuan. Calculation of prompt fission neutron spectrum for ²³³U(n, f) reaction by the semi-empirical method[J]. Chinese Physics C, 2014, 38(5): 054001. doi: 10.1088/1674-1137/38/5/054001

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Received: 2013-06-17
Revised: 1900-01-01

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通讯作者: 陈斌, bchen63@163.com

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沈阳化工大学材料科学与工程学院沈阳 110142

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

Corresponding author: CHEN Yong-Jing,

Received Date: 2013-06-17

Accepted Date: 1900-01-01

Available Online: 2014-05-05

Abstract: The prompt fission neutron spectra for the neutron-induced fission of ²³³U 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_th+²³³U 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.

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

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

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

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通讯作者: 陈斌, bchen63@163.com

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

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

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