Multi-modal analysis for low energy neutron-induced fission of <SUP>235</SUP>U

ZHENG Na; FAN Tie-Shuan; DING Yi; ZHONG Chun-Lai; LI Xiang-Qing; CHEN Jin-Xiang

doi:10.1088/1674-1137/34/1/009

Chinese Physics C> 2010, Vol. 34> Issue(1) : 49-55 DOI: 10.1088/1674-1137/34/1/009

Multi-modal analysis for low energy neutron-induced fission of ²³⁵U

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Low energy neutron induced fission of ²³⁵U is studied in the framework of the multi-modal fission model. The fission fragment properties, such as the yields, the average total kinetic energy distribution and the average neutron separation energy, are investigated for incident neutron energies from thermal to 6.0 MeV. The multi-modal fission approach is also used to evaluate the prompt fission neutron multiplicity and spectra for the neutron-induced fission of ²³⁵U with an improved version of the Los Alamos model for incident neutrons below the (n, nf) threshold. The three most dominant fission modes are taken into account. The model parameters are determined on the basis of experimental data. The calculated results are in good agreement with the experimental data.

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ZHENG Na, FAN Tie-Shuan, DING Yi, ZHONG Chun-Lai, LI Xiang-Qing and CHEN Jin-Xiang. Multi-modal analysis for low energy neutron-induced fission of ²³⁵U[J]. Chinese Physics C, 2010, 34(1): 49-55. doi: 10.1088/1674-1137/34/1/009

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Received: 2009-02-24
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Multi-modal analysis for low energy neutron-induced fission of ²³⁵U

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Multi-modal analysis for low energy neutron-induced fission of ²³⁵U

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Multi-modal analysis for low energy neutron-induced fission of 235U

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Multi-modal analysis for low energy neutron-induced fission of 235U

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Multi-modal analysis for low energy neutron-induced fission of ²³⁵U

Multi-modal analysis for low energy neutron-induced fission of ²³⁵U