Measurements of the 107Ag neutron capture cross sections with pulse height weighting technique at the CSNS Back-n facility

doi:10.1088/1674-1056/ac48fd

中国物理B ›› 2022, Vol. 31 ›› Issue (3): 38204-038204.doi: 10.1088/1674-1056/ac48fd

Measurements of the ¹⁰⁷Ag neutron capture cross sections with pulse height weighting technique at the CSNS Back-n facility

Xin-Xiang Li(李鑫祥)^1,2, Long-Xiang Liu(刘龙祥)^1,3, Wei Jiang(蒋伟)^4,5, Jie Ren(任杰)⁶, Hong-Wei Wang(王宏伟)^1,2,3,†, Gong-Tao Fan(范功涛)^1,2,3,‡, Jian-Jun He(何建军)^7,8, Xi-Guang Cao(曹喜光)^1,2,3, Long-Long Song(宋龙龙)³, Yue Zhang(张岳)^4,5, Xin-Rong Hu(胡新荣)^1,2, Zi-Rui Hao(郝子锐)^1,2, Pan Kuang(匡攀)^1,2, Bing Jiang(姜炳)^1,2, Xiao-He Wang(王小鹤)¹, Ji-Feng Hu(胡继峰)¹, Jin-Cheng Wang(王金成)⁹, De-Xin Wang(王德鑫)⁹, Su-Yalatu Zhang(张苏雅拉吐)⁹, Ying-Du Liu(刘应都)¹⁰, Xu Ma(麻旭)¹⁰, Chun-Wang Ma(马春旺)¹¹, Yu-Ting Wang(王玉廷)¹¹, Zhen-Dong An(安振东)^1,12, Jun Su(苏俊)^7,8, Li-Yong Zhang(张立勇)^7,8, Yu-Xuan Yang(杨宇萱)¹, Wen-Bo Liu(刘文博)^1,11, Wan-Qing Su(苏琬晴)^1,11, Sheng Jin(金晟)^1,2, and Kai-Jie Chen(陈开杰)^1,13

1 Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800, China;
2 University of Chinese Academy of Sciences, Beijing 100049, China;
3 Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai 201210, China;
4 Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China;
5 China Spallation Neutron Source, Dongguan 523803, China;
6 China Institute of Atomic Energy, Beijing 102413, China;
7 Key Laboratory of Beam Technology and Material Modification of Ministry of Education, College of Nuclear Science and Technology, Beijing Normal University, Beijing 100875, China;
8 Beijing Radiation Center, Beijing 100875, China;
9 College of Mathematics and Physics, Inner Mongolia Minzu University, Tongliao 028000, China;
10 Xiangtan University, Xiangtan 411105, China;
11 Henan Normal University, Xinxiang 453007, China;
12 Sun Yat-sen University, Zhuhai 510275, China;
13 ShanghaiTech University, Shanghai 200120, China

收稿日期:2021-12-07 修回日期:2021-12-31 接受日期:2022-01-07 出版日期:2022-02-22 发布日期:2022-03-01
通讯作者: Gong-Tao Fan E-mail:wanghongwei@zjlab.org.cn;fangongtao@zjlab.org.cn
基金资助:
We appreciate useful communications from Prof. GuiLin Zhang at Shanghai Institute of Applied Physics, Chinese Academy of Sciences (SINAP), and effective technical support from Dr. Yi-Jie Wang at Tsinghua University, Ms. Wen-Yi Huang at HUST and Mr. Jun-Wen Wang at development and reform bureau of Shuangliu district, Chengdu. We also greatly appreciate the efforts of the staff of the CSNS and Backn collaboration. This work was supported by the National Natural Science Foundation of China (Grant Nos. 11875311, 11905274, 1705156, U2032146, 11865010, 11765015, and 1160509), the Natural Science Foundation of Inner Mongolia, China (Grant Nos. 2019JQ01 and 2018MS01009), and the Strategic Priority Research Program of the Chinese Academy of Sciences (Grant No. XDB34030000).

Measurements of the ¹⁰⁷Ag neutron capture cross sections with pulse height weighting technique at the CSNS Back-n facility

1 Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800, China;
2 University of Chinese Academy of Sciences, Beijing 100049, China;
3 Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai 201210, China;
4 Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China;
5 China Spallation Neutron Source, Dongguan 523803, China;
6 China Institute of Atomic Energy, Beijing 102413, China;
7 Key Laboratory of Beam Technology and Material Modification of Ministry of Education, College of Nuclear Science and Technology, Beijing Normal University, Beijing 100875, China;
8 Beijing Radiation Center, Beijing 100875, China;
9 College of Mathematics and Physics, Inner Mongolia Minzu University, Tongliao 028000, China;
10 Xiangtan University, Xiangtan 411105, China;
11 Henan Normal University, Xinxiang 453007, China;
12 Sun Yat-sen University, Zhuhai 510275, China;
13 ShanghaiTech University, Shanghai 200120, China

Received:2021-12-07 Revised:2021-12-31 Accepted:2022-01-07 Online:2022-02-22 Published:2022-03-01
Contact: Gong-Tao Fan E-mail:wanghongwei@zjlab.org.cn;fangongtao@zjlab.org.cn
Supported by:
We appreciate useful communications from Prof. GuiLin Zhang at Shanghai Institute of Applied Physics, Chinese Academy of Sciences (SINAP), and effective technical support from Dr. Yi-Jie Wang at Tsinghua University, Ms. Wen-Yi Huang at HUST and Mr. Jun-Wen Wang at development and reform bureau of Shuangliu district, Chengdu. We also greatly appreciate the efforts of the staff of the CSNS and Backn collaboration. This work was supported by the National Natural Science Foundation of China (Grant Nos. 11875311, 11905274, 1705156, U2032146, 11865010, 11765015, and 1160509), the Natural Science Foundation of Inner Mongolia, China (Grant Nos. 2019JQ01 and 2018MS01009), and the Strategic Priority Research Program of the Chinese Academy of Sciences (Grant No. XDB34030000).

摘要/Abstract

摘要： Silver indium cadmium (Ag-In-Cd) control rod is widely used in pressurized water reactor nuclear power plants, and it is continuously consumed in a high neutron flux environment. The mass ratio of ¹⁰⁷Ag in the Ag-In-Cd control rod is 41.44%. To accurately calculate the consumption value of the control rod, a reliable neutron reaction cross section of the ¹⁰⁷Ag is required. Meanwhile, ¹⁰⁷Ag is also an important weak r nucleus. Thus, the cross sections for neutron induced interactions with ¹⁰⁷Ag are very important both in nuclear energy and nuclear astrophysics. The (n,γ) cross section of ¹⁰⁷Ag has been measured in the energy range of 1-60 eV using a back streaming white neutron beam line at China spallation neutron source. The resonance parameters are extracted by an R-matrix code. All the cross section of ¹⁰⁷Ag and resonance parameters are given in this paper as datasets. The datasets are openly available at http://www.doi.org/10.11922/sciencedb.j00113.00010.

关键词: neutron capture cross section, pulse height weighting technique (PHWT), ¹⁰⁷Ag (n,γ)¹⁰⁸Ag, the China spallation neutron source (CSNS) Back-n facility

Abstract: Silver indium cadmium (Ag-In-Cd) control rod is widely used in pressurized water reactor nuclear power plants, and it is continuously consumed in a high neutron flux environment. The mass ratio of ¹⁰⁷Ag in the Ag-In-Cd control rod is 41.44%. To accurately calculate the consumption value of the control rod, a reliable neutron reaction cross section of the ¹⁰⁷Ag is required. Meanwhile, ¹⁰⁷Ag is also an important weak r nucleus. Thus, the cross sections for neutron induced interactions with ¹⁰⁷Ag are very important both in nuclear energy and nuclear astrophysics. The (n,γ) cross section of ¹⁰⁷Ag has been measured in the energy range of 1-60 eV using a back streaming white neutron beam line at China spallation neutron source. The resonance parameters are extracted by an R-matrix code. All the cross section of ¹⁰⁷Ag and resonance parameters are given in this paper as datasets. The datasets are openly available at http://www.doi.org/10.11922/sciencedb.j00113.00010.

Key words: neutron capture cross section, pulse height weighting technique (PHWT), ¹⁰⁷Ag (n,γ)¹⁰⁸Ag, the China spallation neutron source (CSNS) Back-n facility

中图分类号: (Rate constants, reaction cross sections, and activation energies)

82.20.Pm

28.20.Np (Neutron capture γ-rays) 27.60.+j (90 ≤ A ≤ 149) 07.05.Kf (Data analysis: algorithms and implementation; data management)

Xin-Xiang Li(李鑫祥), Long-Xiang Liu(刘龙祥), Wei Jiang(蒋伟), Jie Ren(任杰), Hong-Wei Wang(王宏伟), Gong-Tao Fan(范功涛), Jian-Jun He(何建军), Xi-Guang Cao(曹喜光), Long-Long Song(宋龙龙),Yue Zhang(张岳), Xin-Rong Hu(胡新荣), Zi-Rui Hao(郝子锐), Pan Kuang(匡攀), Bing Jiang(姜炳),Xiao-He Wang(王小鹤), Ji-Feng Hu(胡继峰), Jin-Cheng Wang(王金成), De-Xin Wang(王德鑫),Su-Yalatu Zhang(张苏雅拉吐), Ying-Du Liu(刘应都), Xu Ma(麻旭), Chun-Wang Ma(马春旺),Yu-Ting Wang(王玉廷), Zhen-Dong An(安振东), Jun Su(苏俊), Li-Yong Zhang(张立勇),Yu-Xuan Yang(杨宇萱), Wen-Bo Liu(刘文博), Wan-Qing Su(苏琬晴),Sheng Jin(金晟), and Kai-Jie Chen(陈开杰). Measurements of the ¹⁰⁷Ag neutron capture cross sections with pulse height weighting technique at the CSNS Back-n facility[J]. 中国物理B, 2022, 31(3): 38204-038204.

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Measurements of the ¹⁰⁷Ag neutron capture cross sections with pulse height weighting technique at the CSNS Back-n facility

Measurements of the ¹⁰⁷Ag neutron capture cross sections with pulse height weighting technique at the CSNS Back-n facility

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