Prompt neutron multiplicity distribution for <SUP>235</SUP>U(n,f) at incident energies up to 20 MeV

CHEN Yong-Jing; LIU Ting-Jin

doi:10.1088/1674-1137/35/4/005

Chinese Physics C> 2011, Vol. 35> Issue(4) : 344-348 DOI: 10.1088/1674-1137/35/4/005

Prompt neutron multiplicity distribution for ²³⁵U(n,f) at incident energies up to 20 MeV

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For the n+²³⁵U fission reaction, the total excitation energy partition of the fission fragments, the average neutron kinetic energy <ε>(A) and the total average energies E_γ(A) removed by γ rays as a function of fission fragment mass are given at incident energies up to 20 MeV. The prompt neutron multiplicity as a function of the fragment mass, ν(A), for neutron-induced fission of ²³⁵U at different incident neutron energies is calculated. The calculated results are checked with the total average prompt neutron multiplicities ν and compared with the experimental and evaluated data. Some prompt neutron and γ emission mechanisms are discussed.

References

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CHEN Yong-Jing and LIU Ting-Jin. Prompt neutron multiplicity distribution for ²³⁵U(n,f) at incident energies up to 20 MeV[J]. Chinese Physics C, 2011, 35(4): 344-348. doi: 10.1088/1674-1137/35/4/005

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Received: 2010-06-22
Revised: 2010-08-18

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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

Prompt neutron multiplicity distribution for ²³⁵U(n,f) at incident energies up to 20 MeV

Received Date: 2010-06-22

Accepted Date: 2010-08-18

Available Online: 2011-04-05

Abstract: For the n+²³⁵U fission reaction, the total excitation energy partition of the fission fragments, the average neutron kinetic energy <ε>(A) and the total average energies E_γ(A) removed by γ rays as a function of fission fragment mass are given at incident energies up to 20 MeV. The prompt neutron multiplicity as a function of the fragment mass, ν(A), for neutron-induced fission of ²³⁵U at different incident neutron energies is calculated. The calculated results are checked with the total average prompt neutron multiplicities ν and compared with the experimental and evaluated data. Some prompt neutron and γ emission mechanisms are discussed.

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Prompt neutron multiplicity distribution for ²³⁵U(n,f) at incident energies up to 20 MeV

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Prompt neutron multiplicity distribution for ²³⁵U(n,f) at incident energies up to 20 MeV

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Prompt neutron multiplicity distribution for 235U(n,f) at incident energies up to 20 MeV

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Prompt neutron multiplicity distribution for 235U(n,f) at incident energies up to 20 MeV

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Prompt neutron multiplicity distribution for ²³⁵U(n,f) at incident energies up to 20 MeV

Prompt neutron multiplicity distribution for ²³⁵U(n,f) at incident energies up to 20 MeV