中国物理B ›› 2022, Vol. 31 ›› Issue (8): 80101-080101.doi: 10.1088/1674-1056/ac6ee2

• •    下一篇

New experimental measurement of natSe(n, γ) cross section between 1 eV to 1 keV at the CSNS Back-n facility

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

  1. 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 Spallation Neutron Source Science Center, Dongguan 523803, China;
    6 Key Laboratory of Nuclear Data, China Institute of Atomic Energy, Beijing 102413, China;
    7 Xiangtan University, Xiangtan 411105, China;
    8 Institute of Nuclear Physics, Inner Mongolia University for the Nationalities, Tongliao 028000, China;
    9 Sun Yat-sen University, Zhuhai 510275, China 10 Henan Normal University, Xinxiang 453007, China 11 Beijing Normal University, Beijing 100875, China 12 School of Physics and Microelectronics, Zhengzhou University, Zhengzhou 450052, China 13 ShanghaiTech University, Shanghai 200120, China
  • 收稿日期:2022-03-07 修回日期:2022-04-28 接受日期:2022-05-12 出版日期:2022-07-18 发布日期:2022-07-18
  • 通讯作者: Long-Xiang Liu, Gong-Tao Fan, Hong-Wei Wang E-mail:liulongxiang@zjlab.org.cn;fangongtao@zjlab.org.cn;wanghongwei@zjlab.org.cn
  • 基金资助:
    The authors sincerely appreciate the efforts of the staff of the CSNS and Back-n collaboration as well as Prof. GuiLin Zhang for his useful suggestion on data analysis. This work was supported by the National Natural Science Foundation of China (Grant Nos. 11875311, 11905274, 11705156, 11605097, and U2032146) and the Strategic Priority Research Program of Chinese Academy of Sciences (Grant No. XDB34030000).

New experimental measurement of natSe(n, γ) cross section between 1 eV to 1 keV at the CSNS Back-n facility

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

  1. 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 Spallation Neutron Source Science Center, Dongguan 523803, China;
    6 Key Laboratory of Nuclear Data, China Institute of Atomic Energy, Beijing 102413, China;
    7 Xiangtan University, Xiangtan 411105, China;
    8 Institute of Nuclear Physics, Inner Mongolia University for the Nationalities, Tongliao 028000, China;
    9 Sun Yat-sen University, Zhuhai 510275, China 10 Henan Normal University, Xinxiang 453007, China 11 Beijing Normal University, Beijing 100875, China 12 School of Physics and Microelectronics, Zhengzhou University, Zhengzhou 450052, China 13 ShanghaiTech University, Shanghai 200120, China
  • Received:2022-03-07 Revised:2022-04-28 Accepted:2022-05-12 Online:2022-07-18 Published:2022-07-18
  • Contact: Long-Xiang Liu, Gong-Tao Fan, Hong-Wei Wang E-mail:liulongxiang@zjlab.org.cn;fangongtao@zjlab.org.cn;wanghongwei@zjlab.org.cn
  • Supported by:
    The authors sincerely appreciate the efforts of the staff of the CSNS and Back-n collaboration as well as Prof. GuiLin Zhang for his useful suggestion on data analysis. This work was supported by the National Natural Science Foundation of China (Grant Nos. 11875311, 11905274, 11705156, 11605097, and U2032146) and the Strategic Priority Research Program of Chinese Academy of Sciences (Grant No. XDB34030000).

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摘要： The 74Se is one of 35 p-nuclei, and 82Se is a r-process only nucleus, and their (n, γ) cross sections are vital input parameters for nuclear astrophysics reaction network calculations. The neutron capture cross section in the resonance range of isotopes and even natural selenium samples has not been measured. Prompt γ-rays originating from neutron-induced capture events were detected by four C6D6 liquid scintillator detectors at the Back-n facility of China Spallation Neutron Source (CSNS). The pulse height weighting technique (PHWT) was used to analyze the data in the 1 eV to 100 keV region. The deduced neutron capture cross section was compared with ENDF/B-VIII.0, JEFF-3.2, and JENDL-4.0, and some differences were found. Resonance parameters were extracted by the R-matrix code SAMMY in the 1 eV-1 keV region. All the cross sections of natSe and resonance parameters are given in the datasets. The datasets are openly available at http://www.doi.org/10.11922/sciencedb.j00113.00019.

关键词: natSe (n,γ) cross section, CSNS Back-n facility, C6D6 detectors, resolved resonance region, R-matrix

Abstract: The 74Se is one of 35 p-nuclei, and 82Se is a r-process only nucleus, and their (n, γ) cross sections are vital input parameters for nuclear astrophysics reaction network calculations. The neutron capture cross section in the resonance range of isotopes and even natural selenium samples has not been measured. Prompt γ-rays originating from neutron-induced capture events were detected by four C6D6 liquid scintillator detectors at the Back-n facility of China Spallation Neutron Source (CSNS). The pulse height weighting technique (PHWT) was used to analyze the data in the 1 eV to 100 keV region. The deduced neutron capture cross section was compared with ENDF/B-VIII.0, JEFF-3.2, and JENDL-4.0, and some differences were found. Resonance parameters were extracted by the R-matrix code SAMMY in the 1 eV-1 keV region. All the cross sections of natSe and resonance parameters are given in the datasets. The datasets are openly available at http://www.doi.org/10.11922/sciencedb.j00113.00019.

Key words: natSe (n,γ) cross section, CSNS Back-n facility, C6D6 detectors, resolved resonance region, R-matrix

中图分类号:  (National and international laboratory facilities)

  • 01.52.+r
24.30.-v (Resonance reactions) 29.25.Dz (Neutron sources) 52.70.La (X-ray and γ-ray measurements)