Initial years'neutron-induced cross-section measurements at the CSNS Back-n white neutron source  

作　　者：Jingyu Tang Rong Liu Guohui Zhang Xichao Ruan Xiaoguang Wu Qi An Jiangbo Bai Jie Bao Yu Bao Ping Cao Haolei Chen Qiping Chen Yonghao Chen Zhen Chen Zengqi Cui Ruirui Fan Changqing Feng Lin Gan Keqing Gao Xiaolong Gao Minhao Gu Changcai Han Zijie Han Guozhu He Yongcheng He Yang Hong Yiwei Hu Hanxiong Huang Xiru Huang Haoyu Jiang Wei Jiang Zhijie Jiang Hantao Jing Ling Kang Bo Li Chao Li Jiawen Li Qiang Li Xiao Li Yang Li Jie Liu Minliang Liu Shubin Liu Xingyan Liu Ze Long Guangyuan Luan Changjun Ning Mengchen Niu Binbin Qi Jie Ren Zhizhou Ren Zhaohui Song Kang Sun Zhijia Sun Zhixin Tan Xinyi Tang Binbin Tian Lijiao Wang Pengcheng Wang Zhaohui Wang Jie Wen Zhongwei Wen Xuan Wu Likun Xie Xiaoyun Yang Yiwei Yang Han Yi Li Yu Tao Yu Yongji Yu Linhao Zhang Qiwei Zhang Xianpeng Zhang Yuliang Zhang Zhiyong Zhang Luping Zhou Zhihao Zhou Kejun Zhu 唐靖宇;刘荣;张国辉;阮锡超;吴晓光;安琪;白江博;鲍杰;鲍煜;曹平;陈昊磊;陈琪萍;陈永浩;陈朕;崔增琪;樊瑞睿;封常青;甘林;高可庆;高晓龙;顾旻皓;韩长材;韩子杰;贺国珠;何泳成;洪杨;胡益伟;黄翰雄;黄锡汝;江浩雨;蒋伟;姜智杰;敬罕涛;康玲;李波;李超;李嘉雯;李强;李晓;李样;刘杰;柳敏良;刘树彬;刘星言;龙泽;栾广源;宁常军;牛梦臣;齐斌斌;任杰;任智洲;宋朝晖;孙康;孙志嘉;谭志新;唐新懿;田斌斌;王丽娇;王鹏程;王朝辉;文杰;温中伟;吴煊;解立坤;杨晓云;羊奕伟;易晗;于莉;余滔;于永积;张林浩;张奇玮;张显鹏;张玉亮;张志永;周路平;周志浩;朱科军(State Key Laboratory of Particle Detection and Electronics;Institute of High Energy Physics,Chinese Academy of Sciences(CAS),Beijing 100049,China;Spallation Neutron Source Science Center,Dongguan 523803,China;University of Chinese Academy of Sciences,Beijing 100049,China;Institute of Nuclear Physics and Chemistry,China Academy of Engineering Physics,Mianyang 621900,China;State Key Laboratory of Nuclear Physics and Technology,School of Physics,Peking University,Beijing 100871,China;Key Laboratory of Nuclear Data,China Institute of Atomic Energy,Beijing 102413,China;Department of Modern Physics,University of Science and Technology of China,Hefei 230026,China;College of Physics and Optoelectronic Engineering,Shenzhen University,Shenzhen 518060,China;Northwest Institute of Nuclear Technology,Xi'an 710024,China;Institute of Modern Physics,Chinese Academy of Sciences(CAS),Lanzhou 730000,China)

机构地区：[1]State Key Laboratory of Particle Detection and Electronics [2]Institute of High Energy Physics,Chinese Academy of Sciences(CAS),Beijing 100049,China [3]Spallation Neutron Source Science Center,Dongguan 523803,China [4]University of Chinese Academy of Sciences,Beijing 100049,China [5]Institute of Nuclear Physics and Chemistry,China Academy of Engineering Physics,Mianyang 621900,China [6]State Key Laboratory of Nuclear Physics and Technology,School of Physics,Peking University,Beijing 100871,China [7]Key Laboratory of Nuclear Data,China Institute of Atomic Energy,Beijing 102413,China [8]Department of Modern Physics,University of Science and Technology of China,Hefei 230026,China [9]College of Physics and Optoelectronic Engineering,Shenzhen University,Shenzhen 518060,China [10]Northwest Institute of Nuclear Technology,Xi'an 710024,China [11]Institute of Modern Physics,Chinese Academy of Sciences(CAS),Lanzhou 730000,China

出　　处：《Chinese Physics C》2021年第6期1-14,共14页中国物理C（英文版）

基　　金：Supported by the National Key Research and Development Plan(2016YFA0401600);the National Natural Science Foundation of China(11675155,11790321)。

摘　　要：The Back-n white neutron source(known as Back-n)is based on back-streaming neutrons from the spallation target at the China Spallation Neutron Source(CSNS).With its excellent beam properties,e.g.,a neutron flux of approximately 1.8×107 n/cm2/s at 55 m from the spallation target,energy range spanning from 0.5 eV to 200 MeV,and time-of-flight resolution of a few per thousand,along with the equipped physical spectrometers,Back-n is considered to be among the best facilities in the world for carrying out nuclear data measurements.Since its completion and commencement of operation in May 2018,five types of cross-section measurements concerning neutron capture cross-sections,fission cross-sections,total cross-sections,light charged particle emissions,in-beam gamma spectra,and more than forty nuclides have been measured.This article presents an overview of the experimental setup and result analysis on the neutron-induced cross-section measurements and gamma spectroscopy at Back-n in the initial years.

关 键 词：white neutron beam experimental spectrometers nuclear data measurements NUCLIDES data analysis 

分 类 号：O571.53[理学—粒子物理与原子核物理]