Measurement of neutron-induced fission cross sections of 235U and 238U relative to n-p scattering at CSNS Back-n facility

被引：0

作者：

Chen, Yonghao ^{[1
,2
]}

Yang, Yiwei ^{[3
]}

Ren, Zhizhou ^{[3
,4
]}

Jiang, Wei ^{[1
,2
]}

Fan, Ruirui ^{[1
,2
]}

Yi, Han ^{[1
,2
]}

Liu, Rong ^{[3
]}

Tang, Jingyu ^{[1
,2
]}

Jing, Hantao ^{[1
,2
]}

Li, Yang ^{[1
,2
]}

Li, Qiang ^{[1
,2
]}

Tan, Zhixin ^{[1
,2
]}

机构：

[1] Chinese Acad Sci, Inst High Energy Phys, Beijing 100049, Peoples R China

[2] Spallation Neutron Source Sci Ctr, Dongguan 523803, Peoples R China

[3] China Acad Engn Phys, Inst Nucl Phys & Chem, Mianyang 621900, Sichuan, Peoples R China

[4] Univ Sci & Technol China, Dept Modern Phys, Hefei 230026, Peoples R China

来源：

15TH INTERNATIONAL CONFERENCE ON NUCLEAR DATA FOR SCIENCE AND TECHNOLOGY, ND2022 | 2023年 / 284卷

基金：

中国国家自然科学基金;

关键词：

BI-209;

D O I：

10.1051/epjconf/202328401013

中图分类号：

TL [原子能技术]; O571 [原子核物理学];

学科分类号：

0827 ; 082701 ;

摘要：

U-235 and U-238 are very important isotopes in the nuclear energy system. Their neutron-induced fission cross sections have been measured intensively and evaluated as standard up to 200 MeV. However, as a matter of fact, the experimental data in the high-energy region are scarce. This work reports the measurement of (235), U-238(n, f) cross sections relative to n-p scattering performed at the China Spallation Neutron Source (CSNS) back-streaming neutron facility (Back-n). Preliminary results of (235), U-238(n, f) cross sections from 10 to 66 MeV are obtained, which are generally following the shape of the IAEA standard. However, significant discrepancies are observed at some given energies, which will be further studied.

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页数：4

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