Prompt and Delayed Neutron Emissions and Fission Product Yield Calculations with Hauser-Feshbach Statistical Decay Theory and Summation Calculation Method

被引:2
|
作者
Okumura, Shin [1 ,3 ]
Kawano, Toshihiko [2 ]
Chiba, Satoshi [1 ]
机构
[1] Tokyo Inst Technol, Lab Adv Nucl Energy, Meguro Ku, 2-12-1 Ookayama, Tokyo, Japan
[2] Los Alamos Natl Lab, Theoret Div, Los Alamos, NM 87545 USA
[3] IAEA, NAPC Nucl Data Sect, A-1400 Vienna, Austria
来源
5TH INTERNATIONAL WORKSHOP ON NUCLEAR DATA EVALUATION FOR REACTOR APPLICATIONS (WONDER-2018) | 2019年 / 211卷
关键词
PU-239;
D O I
10.1051/epjconf/201921104005
中图分类号
O57 [原子核物理学、高能物理学];
学科分类号
070202 ;
摘要
We demonstrate the neutron emission and fission product yield calculations using the Hauser-Feshbach Fission Fragment Decay ((HFD)-D-3) model and beta decay. The HF3D model calculates the statistical decay of more than 500 primary fission fragment pairs formed by the neutron induced fission of U-235. In order to calculate the prompt neutron and photon emissions, the primary fission fragment distributions, i.e. mass, charge, excitation energy, spin and parity are deterministically generated and numerically integrated for all fission fragments. The calculated prompt neutron multiplicities, independent fission product yield are fully consistent each other. We combine the beta-decay and the summation calculations with the (HFD)-D-3 model calculation to obtain the cumulative fission product yield, decay heat and delayed neutron yield. The calculated fission observables are compared with available experimental data.
引用
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页数:6
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