Measurement of the U-238/U-235 fission cross section ratio at CSNS – Back-n WNS

Jie Wen; Yiwei Yang; Zhongwei Wen; Rong Liu; Xingyan Liu; Zijie Han; Qiping Chen; Zhizhou Ren; Qi An; Huaiyong Bai; Jie Bao; Ping Cao; Yonghao Chen; Pinjing Cheng; Zengqi Cui; Ruirui Fan; Changqing Feng; Minhao Gu; Fengqin Guo; Changcai Han; Guozhu He; Yongcheng He; Yuefeng He; Hanxiong Huang; Weiling Huang; Xiru Huang; Xiaolu Ji; Xuyang Ji; Haoyu Jiang; Wei Jiang; Hantao Jing; Ling Kang; Mingtao Kang; Bo Li; Lun Li; Qiang Li; Xiao Li; Yang Li; Shubin Liu; Guangyuan Luan; Yinglin Ma; Changjun Ning; Binbin Qi; Jie Ren; Xichao Ruan; Zhaohui Song; Hong Sun; Xiaoyang Sun; Zhijia Sun; Zhixin Tan; Hongqing Tang; Jingyu Tang; Pengcheng Wang; Qi Wang; Taofeng Wang; Yanfeng Wang; Zhaohui Wang; Zheng Wang; Qingbiao Wu; Xiaoguang Wu; Xuan Wu; Likun Xie; Han Yi; Li Yu; Tao Yu; Yongji Yu; Guohui Zhang; Jing Zhang; Linhao Zhang; Liying Zhang; Qingmin Zhang; Qiwei Zhang; Xianpeng Zhang; Yuliang Zhang; Zhiyong Zhang; Yingtan Zhao; Liang Zhou; Zuying Zhou; Danyang Zhu; Kejun Zhu; Peng Zhu

doi:10.1016/j.anucene.2019.107301

Measurement of the U-238/U-235 fission cross section ratio at CSNS – Back-n WNS

Jie Wen
, Yiwei Yang
, Zhongwei Wen
, Rong Liu^*
, Xingyan Liu
, Zijie Han
, Qiping Chen
, Zhizhou Ren
, Qi An
, Huaiyong Bai
, Jie Bao
, Ping Cao
, Yonghao Chen
, Pinjing Cheng
, Zengqi Cui
, Ruirui Fan
, Changqing Feng
, Minhao Gu
, Fengqin Guo
, Changcai Han

Guozhu He, Yongcheng He, Yuefeng He, Hanxiong Huang, Weiling Huang, Xiru Huang, Xiaolu Ji, Xuyang Ji, Haoyu Jiang, Wei Jiang, Hantao Jing, Ling Kang, Mingtao Kang, Bo Li, Lun Li, Qiang Li, Xiao Li, Yang Li, Shubin Liu, Guangyuan Luan, Yinglin Ma, Changjun Ning, Binbin Qi, Jie Ren, Xichao Ruan, Zhaohui Song, Hong Sun, Xiaoyang Sun, Zhijia Sun, Zhixin Tan, Hongqing Tang, Jingyu Tang, Pengcheng Wang, Qi Wang, Taofeng Wang, Yanfeng Wang, Zhaohui Wang, Zheng Wang, Qingbiao Wu, Xiaoguang Wu, Xuan Wu, Likun Xie, Han Yi, Li Yu, Tao Yu, Yongji Yu, Guohui Zhang, Jing Zhang, Linhao Zhang, Liying Zhang, Qingmin Zhang, Qiwei Zhang, Xianpeng Zhang, Yuliang Zhang, Zhiyong Zhang, Yingtan Zhao, Liang Zhou, Zuying Zhou, Danyang Zhu, Kejun Zhu, Peng Zhu

^*此作品的通讯作者

物理学院

China Academy of Engineering Physics
Chinese Academy of Sciences
University of Science and Technology of China
Peking University
China National Nuclear Corporation
CAS - Institute of High Energy Physics
Dongguan Neutron Science Center
University of South China
Northwest Institute of Nuclear Technology
Xi'an Jiaotong University

科研成果: 期刊稿件 › 文章 › 同行评审

14 引用（Scopus）

摘要

Based on the China Spallation Neutron Source (CSNS) – Back-streaming white neutron source (Back-n WNS), the measurement of the U-238/U-235 fission cross section ratio in 1–20 MeV neutron energy region has been carried out by a multi-cell fast fission ionization chamber using the time-of-flight method. The measured resonance peaks of the ²³⁵U(n, f) reaction are in good agreement with those of the ENDF/B-8.0 database. The measured six groups of the U-238/U-235 fission cross section ratios in 1–20 MeV neutron energy region agree with those of the ENDF/B-8.0 database in trend, and the average discrepancies between experiment and database are from 1.9% to 2.6%. The relative experimental uncertainties are 2.3%–3.6% (1.4–20 MeV), and the measured data agree with those of database within experimental uncertainties at most energy points. The measured U-238/U-235 fission cross section ratio could provide information and data support in relevant nuclear data evaluation.

源语言	英语
文章编号	107301
期刊	Annals of Nuclear Energy
卷	140
DOI	https://doi.org/10.1016/j.anucene.2019.107301
出版状态	已出版 - 1 6月 2020

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10.1016/j.anucene.2019.107301

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@article{ac99a8fe5943477582d2c6bf34dabfe2,

title = "Measurement of the U-238/U-235 fission cross section ratio at CSNS – Back-n WNS",

abstract = "Based on the China Spallation Neutron Source (CSNS) – Back-streaming white neutron source (Back-n WNS), the measurement of the U-238/U-235 fission cross section ratio in 1–20 MeV neutron energy region has been carried out by a multi-cell fast fission ionization chamber using the time-of-flight method. The measured resonance peaks of the 235U(n, f) reaction are in good agreement with those of the ENDF/B-8.0 database. The measured six groups of the U-238/U-235 fission cross section ratios in 1–20 MeV neutron energy region agree with those of the ENDF/B-8.0 database in trend, and the average discrepancies between experiment and database are from 1.9\% to 2.6\%. The relative experimental uncertainties are 2.3\%–3.6\% (1.4–20 MeV), and the measured data agree with those of database within experimental uncertainties at most energy points. The measured U-238/U-235 fission cross section ratio could provide information and data support in relevant nuclear data evaluation.",

keywords = "CSNS – Back-n WNS, Multi-cell fast fission ionization chamber, Time-of-flight method, U-238/U-235 fission cross section ratio",

author = "Jie Wen and Yiwei Yang and Zhongwei Wen and Rong Liu and Xingyan Liu and Zijie Han and Qiping Chen and Zhizhou Ren and Qi An and Huaiyong Bai and Jie Bao and Ping Cao and Yonghao Chen and Pinjing Cheng and Zengqi Cui and Ruirui Fan and Changqing Feng and Minhao Gu and Fengqin Guo and Changcai Han and Guozhu He and Yongcheng He and Yuefeng He and Hanxiong Huang and Weiling Huang and Xiru Huang and Xiaolu Ji and Xuyang Ji and Haoyu Jiang and Wei Jiang and Hantao Jing and Ling Kang and Mingtao Kang and Bo Li and Lun Li and Qiang Li and Xiao Li and Yang Li and Shubin Liu and Guangyuan Luan and Yinglin Ma and Changjun Ning and Binbin Qi and Jie Ren and Xichao Ruan and Zhaohui Song and Hong Sun and Xiaoyang Sun and Zhijia Sun and Zhixin Tan and Hongqing Tang and Jingyu Tang and Pengcheng Wang and Qi Wang and Taofeng Wang and Yanfeng Wang and Zhaohui Wang and Zheng Wang and Qingbiao Wu and Xiaoguang Wu and Xuan Wu and Likun Xie and Han Yi and Li Yu and Tao Yu and Yongji Yu and Guohui Zhang and Jing Zhang and Linhao Zhang and Liying Zhang and Qingmin Zhang and Qiwei Zhang and Xianpeng Zhang and Yuliang Zhang and Zhiyong Zhang and Yingtan Zhao and Liang Zhou and Zuying Zhou and Danyang Zhu and Kejun Zhu and Peng Zhu",

note = "Publisher Copyright: {\textcopyright} 2020 Elsevier Ltd",

year = "2020",

month = jun,

day = "1",

doi = "10.1016/j.anucene.2019.107301",

language = "英语",

volume = "140",

journal = "Annals of Nuclear Energy",

issn = "0306-4549",

publisher = "Elsevier Ltd",

}

Wen, J, Yang, Y, Wen, Z, Liu, R, Liu, X, Han, Z, Chen, Q, Ren, Z, An, Q, Bai, H, Bao, J, Cao, P, Chen, Y, Cheng, P, Cui, Z, Fan, R, Feng, C, Gu, M, Guo, F, Han, C, He, G, He, Y, He, Y, Huang, H, Huang, W, Huang, X, Ji, X, Ji, X, Jiang, H, Jiang, W, Jing, H, Kang, L, Kang, M, Li, B, Li, L, Li, Q, Li, X, Li, Y, Liu, S, Luan, G, Ma, Y, Ning, C, Qi, B, Ren, J, Ruan, X, Song, Z, Sun, H, Sun, X, Sun, Z, Tan, Z, Tang, H, Tang, J, Wang, P, Wang, Q, Wang, T, Wang, Y, Wang, Z, Wang, Z, Wu, Q, Wu, X, Wu, X, Xie, L, Yi, H, Yu, L, Yu, T, Yu, Y, Zhang, G, Zhang, J, Zhang, L, Zhang, L, Zhang, Q, Zhang, Q, Zhang, X, Zhang, Y, Zhang, Z, Zhao, Y, Zhou, L, Zhou, Z, Zhu, D, Zhu, K & Zhu, P 2020, 'Measurement of the U-238/U-235 fission cross section ratio at CSNS – Back-n WNS', Annals of Nuclear Energy, 卷 140, 107301. https://doi.org/10.1016/j.anucene.2019.107301

TY - JOUR

T1 - Measurement of the U-238/U-235 fission cross section ratio at CSNS – Back-n WNS

AU - Wen, Jie

AU - Yang, Yiwei

AU - Wen, Zhongwei

AU - Liu, Rong

AU - Liu, Xingyan

AU - Han, Zijie

AU - Chen, Qiping

AU - Ren, Zhizhou

AU - An, Qi

AU - Bai, Huaiyong

AU - Bao, Jie

AU - Cao, Ping

AU - Chen, Yonghao

AU - Cheng, Pinjing

AU - Cui, Zengqi

AU - Fan, Ruirui

AU - Feng, Changqing

AU - Gu, Minhao

AU - Guo, Fengqin

AU - Han, Changcai

AU - He, Guozhu

AU - He, Yongcheng

AU - He, Yuefeng

AU - Huang, Hanxiong

AU - Huang, Weiling

AU - Huang, Xiru

AU - Ji, Xiaolu

AU - Ji, Xuyang

AU - Jiang, Haoyu

AU - Jiang, Wei

AU - Jing, Hantao

AU - Kang, Ling

AU - Kang, Mingtao

AU - Li, Bo

AU - Li, Lun

AU - Li, Qiang

AU - Li, Xiao

AU - Li, Yang

AU - Liu, Shubin

AU - Luan, Guangyuan

AU - Ma, Yinglin

AU - Ning, Changjun

AU - Qi, Binbin

AU - Ren, Jie

AU - Ruan, Xichao

AU - Song, Zhaohui

AU - Sun, Hong

AU - Sun, Xiaoyang

AU - Sun, Zhijia

AU - Tan, Zhixin

AU - Tang, Hongqing

AU - Tang, Jingyu

AU - Wang, Pengcheng

AU - Wang, Qi

AU - Wang, Taofeng

AU - Wang, Yanfeng

AU - Wang, Zhaohui

AU - Wang, Zheng

AU - Wu, Qingbiao

AU - Wu, Xiaoguang

AU - Wu, Xuan

AU - Xie, Likun

AU - Yi, Han

AU - Yu, Li

AU - Yu, Tao

AU - Yu, Yongji

AU - Zhang, Guohui

AU - Zhang, Jing

AU - Zhang, Linhao

AU - Zhang, Liying

AU - Zhang, Qingmin

AU - Zhang, Qiwei

AU - Zhang, Xianpeng

AU - Zhang, Yuliang

AU - Zhang, Zhiyong

AU - Zhao, Yingtan

AU - Zhou, Liang

AU - Zhou, Zuying

AU - Zhu, Danyang

AU - Zhu, Kejun

AU - Zhu, Peng

PY - 2020/6/1

Y1 - 2020/6/1

N2 - Based on the China Spallation Neutron Source (CSNS) – Back-streaming white neutron source (Back-n WNS), the measurement of the U-238/U-235 fission cross section ratio in 1–20 MeV neutron energy region has been carried out by a multi-cell fast fission ionization chamber using the time-of-flight method. The measured resonance peaks of the 235U(n, f) reaction are in good agreement with those of the ENDF/B-8.0 database. The measured six groups of the U-238/U-235 fission cross section ratios in 1–20 MeV neutron energy region agree with those of the ENDF/B-8.0 database in trend, and the average discrepancies between experiment and database are from 1.9% to 2.6%. The relative experimental uncertainties are 2.3%–3.6% (1.4–20 MeV), and the measured data agree with those of database within experimental uncertainties at most energy points. The measured U-238/U-235 fission cross section ratio could provide information and data support in relevant nuclear data evaluation.

AB - Based on the China Spallation Neutron Source (CSNS) – Back-streaming white neutron source (Back-n WNS), the measurement of the U-238/U-235 fission cross section ratio in 1–20 MeV neutron energy region has been carried out by a multi-cell fast fission ionization chamber using the time-of-flight method. The measured resonance peaks of the 235U(n, f) reaction are in good agreement with those of the ENDF/B-8.0 database. The measured six groups of the U-238/U-235 fission cross section ratios in 1–20 MeV neutron energy region agree with those of the ENDF/B-8.0 database in trend, and the average discrepancies between experiment and database are from 1.9% to 2.6%. The relative experimental uncertainties are 2.3%–3.6% (1.4–20 MeV), and the measured data agree with those of database within experimental uncertainties at most energy points. The measured U-238/U-235 fission cross section ratio could provide information and data support in relevant nuclear data evaluation.

KW - CSNS – Back-n WNS

KW - Multi-cell fast fission ionization chamber

KW - Time-of-flight method

KW - U-238/U-235 fission cross section ratio

UR - https://www.scopus.com/pages/publications/85077516690

U2 - 10.1016/j.anucene.2019.107301

DO - 10.1016/j.anucene.2019.107301

M3 - 文章

AN - SCOPUS:85077516690

SN - 0306-4549

VL - 140

JO - Annals of Nuclear Energy

JF - Annals of Nuclear Energy

M1 - 107301

ER -

Measurement of the U-238/U-235 fission cross section ratio at CSNS – Back-n WNS

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