Neutron capture measurement of the 165Ho at the CSNS Backn facility in the resonance energy region
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| Main Authors: | , , , , , , , , , , , , , , , , , , , |
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| Format: | Preprint |
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2025
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| _version_ | 1866917044938604544 |
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| author | Wang, De-Xin Zhang, Su-Ya-La-Tu Jiang, Wei Fan, Rui-Rui Zhang, Qi-Wei Ren, Jie Wang, Jin-Cheng Luan, Guang-Yuan Wu, Xiao-Guang Sun, Bao-Hua Zhou, Zhen-Xiang Wu, Hong-Yi He, Zhi-Yang Li, Cong-Bo Sun, Qi Pang, Xuan Huang, Mei-Rong Li, Guo Bao, Gerile Ruan, Xi-Chao |
| author_facet | Wang, De-Xin Zhang, Su-Ya-La-Tu Jiang, Wei Fan, Rui-Rui Zhang, Qi-Wei Ren, Jie Wang, Jin-Cheng Luan, Guang-Yuan Wu, Xiao-Guang Sun, Bao-Hua Zhou, Zhen-Xiang Wu, Hong-Yi He, Zhi-Yang Li, Cong-Bo Sun, Qi Pang, Xuan Huang, Mei-Rong Li, Guo Bao, Gerile Ruan, Xi-Chao |
| contents | The neutron capture yield of 165Ho have been measured at the Back-streaming White neutron beam line (Back-n) of the China Spallation Neutron Source (CSNS) using a 4π BaF2 Gamma Total Absorption Facility (GTAF). The resonance shapes in the 1eV to 1.0keV region were analyzed with the Bayesian R-matrix code SAMMY. For 18 s-wave resonances below 100eV, the resonance energy ER, neutron width Γn, and radiative width Γγ were extracted. The statistical analyses of the resonance parameters show that the nearest-neighbour level-spacing distribution follows a Wigner-Dyson form with mean spacing D0 = 4.53(3)eV,indicating chaotic compound-nucleus behaviour; Using the extracted parameters, the s-wave neutron strength function for 165Ho was derived to be 10-4S0 = 2.01(1), in excellent agreement with the values reported in both the Atlas of Neutron Resonances and ENDF/B-VIII.0 data. |
| format | Preprint |
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arxiv_https___arxiv_org_abs_2510_22965 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Neutron capture measurement of the 165Ho at the CSNS Backn facility in the resonance energy region Wang, De-Xin Zhang, Su-Ya-La-Tu Jiang, Wei Fan, Rui-Rui Zhang, Qi-Wei Ren, Jie Wang, Jin-Cheng Luan, Guang-Yuan Wu, Xiao-Guang Sun, Bao-Hua Zhou, Zhen-Xiang Wu, Hong-Yi He, Zhi-Yang Li, Cong-Bo Sun, Qi Pang, Xuan Huang, Mei-Rong Li, Guo Bao, Gerile Ruan, Xi-Chao Nuclear Experiment Instrumentation and Detectors The neutron capture yield of 165Ho have been measured at the Back-streaming White neutron beam line (Back-n) of the China Spallation Neutron Source (CSNS) using a 4π BaF2 Gamma Total Absorption Facility (GTAF). The resonance shapes in the 1eV to 1.0keV region were analyzed with the Bayesian R-matrix code SAMMY. For 18 s-wave resonances below 100eV, the resonance energy ER, neutron width Γn, and radiative width Γγ were extracted. The statistical analyses of the resonance parameters show that the nearest-neighbour level-spacing distribution follows a Wigner-Dyson form with mean spacing D0 = 4.53(3)eV,indicating chaotic compound-nucleus behaviour; Using the extracted parameters, the s-wave neutron strength function for 165Ho was derived to be 10-4S0 = 2.01(1), in excellent agreement with the values reported in both the Atlas of Neutron Resonances and ENDF/B-VIII.0 data. |
| title | Neutron capture measurement of the 165Ho at the CSNS Backn facility in the resonance energy region |
| topic | Nuclear Experiment Instrumentation and Detectors |
| url | https://arxiv.org/abs/2510.22965 |