[3I04-08] Fission Reaction

[3I08] Multiplicities of fission neutron estimated from the charge distribution obtained by the microscopic mean-field model

*Shuichiro Ebata¹, Shin Okumra², Chikako Ishizuka³, Satoshi Chiba^4,5 (1. Saitama University, 2. IAEA, 3. Laboratory for Zero-Carbon Energy Systems, Institute of Innovative Research, Tokyo Institute of Technology, 4. Tokyo Institute of Technology, 5. NAT Research Center, NAT Corporation)

Keywords:Nuclear Data, Fission, Charge Polarization, Theoretical Nuclear Physics

The charge distribution of fission fragments has a great influence on the prompt and delayed neutron yields.
We investigated the configuration of fission fragments using a microscopic mean-field model
and theoretically derived the charge polarization (CP) of uranium-236.
Using the dynamical model, we found the energy dependence of the charge polarization and
found the obtained CP is comparable to those of the present data library.
In this talk, we will apply this method to different fissile nuclides and report the results of calculating neutron multiplicity through the Hauser-Feshbach calculations using the obtained theoretical CP as input.