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Measurement of 232Th (n,γ) cross section at the CSNS Back-n facility in the unresolved resonance region from 4 keV to 100 keV |
| Bing Jiang(姜炳)1,2,3, Jianlong Han(韩建龙)1,2,3, Jie Ren(任杰)4, Wei Jiang(蒋伟)5,6, Xiaohe Wang(王小鹤)1,2,†, Zian Guo(郭子安)1,2,3, Jianglin Zhang(张江林)1,2,3, Jifeng Hu(胡继峰)1,2, Jingen Chen(陈金根)1,2,3,‡, Xiangzhou Cai(蔡翔舟)1,2,3,§, Hongwei Wang(王宏伟)3,7, Longxiang Liu(刘龙祥)7, Xinxiang Li(李鑫祥)1,3, Xinrong Hu(胡新荣)1,3, and Yue Zhang(张岳)5,6 |
1 Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800, China;
2 CAS Innovative Academy in TMSR Energy System, Chinese Academy of Sciences, Shanghai 201800, China;
3 University of Chinese Academy of Sciences, Beijing 100049, China;
4 Key Laboratory of Nuclear Data, China Institute of Atomic Energy, Beijing 102413, China;
5 Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China;
6 China Spallation Neutron Source, Dongguan 523803, China;
7 Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai 201210, China |
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Abstract The neutron capture cross section of 232Th was measured at the neutron time-of-flight facility Back-n of China Spallation Neutron Source (CSNS) for the first time. The measurement was performed with 4 hydrogen-free deuterated benzene C6D6 liquid scintillation detectors, in the ES#2 experiment station on the beam line, at a distance of about 76 m from the neutron-production assembly. The total energy detection principle in combination with the pulse height weighting technique (PHWT) was applied to analyze the measured data. Results of the 232Th (n,γ) reaction cross section in the unresolved resonance region from 4 keV to 100 keV were obtained, which shows a good agreement with the existing experimental data from EXFOR, as well as with the evaluated data from the ENDF/B-VIII.0 and CENDL-3.1. In addition, the excitation function of 232Th (n,γ)233Th reaction in the unresolved resonance region was theoretically calculated by using the code TALYS-1.95. By fitting the experimental cross section and theoretical data, the average parameters in the unresolved resonance region were extracted. The datasets are openly available at http://dx.doi.org/10.11922/sciencedb.j00113.00015.
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Received: 11 November 2021
Revised: 11 January 2022
Accepted manuscript online: 10 February 2022
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PACS:
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01.52.+r
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(National and international laboratory facilities)
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24.30.-v
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(Resonance reactions)
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29.25.Dz
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(Neutron sources)
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52.70.La
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(X-ray and γ-ray measurements)
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| Fund: Project supported by the Chinese TMSR Strategic Pioneer Science and Technology Project (Grant No. XDA02010000) and the National Natural Science Foundation of China (Grant No. 11790321). |
Corresponding Authors:
Xiaohe Wang, Jingen Chen, Xiangzhou Cai
E-mail: wangxiaohe@sinap.ac.cn;chenjingen@sinap.ac.cn;caixiangzhou@sinap.ac.cn
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Cite this article:
Bing Jiang(姜炳), Jianlong Han(韩建龙), Jie Ren(任杰), Wei Jiang(蒋伟), Xiaohe Wang(王小鹤), Zian Guo(郭子安), Jianglin Zhang(张江林), Jifeng Hu(胡继峰), Jingen Chen(陈金根), Xiangzhou Cai(蔡翔舟), Hongwei Wang(王宏伟), Longxiang Liu(刘龙祥), Xinxiang Li(李鑫祥), Xinrong Hu(胡新荣), and Yue Zhang(张岳) Measurement of 232Th (n,γ) cross section at the CSNS Back-n facility in the unresolved resonance region from 4 keV to 100 keV 2022 Chin. Phys. B 31 060101
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