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

作者：Chen Yong Jing^*; Liu Ting Jin

来源：Chinese Physics C, 2011, 35(4): 344-348.

DOI：10.1088/1674-1137/35/4/005

• fission fragment
• excitation energy partition
• prompt neutron multiplicity

For the n+U-235 fission reaction, the total excitation energy partition of the fission fragments, the average neutron kinetic energy <epsilon >(A) and the total average energies (E) over bar gamma(A) removed by gamma 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, nu(A), for neutron-induced fission of U-235 at different incident neutron energies is calculated. The calculated results are checked with the total average prompt neutron multiplicities (nu) over bar and compared with the experimental and evaluated data. Some prompt neutron and gamma emission mechanisms are discussed.

• 出版日期2011-4
• 单位中国原子能科学研究院