Measurement of Br(n,γ) cross sections up to stellar s-process temperatures at the CSNS Back-n

Yang, Gao-Le; An, Zhen-Dong; Jiang, Wei; Li, Xian-Kai; Qiu, Wei-Wei; Liao, Zheng-Fa; Zhuang, Zi-Yue; Zhang, Xiao-Ping; Chen, Sheng-Li; Guo, Chen-Chen; Xiao, Er-Xi; Fang, Xiao; Li, Xin-Xiang; Hu, Xin-Rong; Jiang, Bing; Wang, Jin-Cheng; Ren, Jie; Luo, Wen; Zhu, Zhi-Chao; Lan, Hao-Yang; Cao, Zong-Wei; Ma, Xu; Liu, Ying-Du; Wang, Pu-Sen; Yang, Yi; Su, Ping; Deng, Xian-Gai; He, Wan-Bing; Ma, Chun-Wang; Wang, Yu-Ting; Dai, Zhi-Tao; He, Peng-Qin; Tang, Ren-Guang; Zhou, Tao; Wang, Jing; Yi, Han; Zhang, Yue; Chen, Yong-Hao; Fan, Rui-Rui; Gao, Ke-Qing; Li, Qiang; Sun, Kang; Tan, Zhi-Xin; Gu, Min-Hao; Jing, Han-Tao; Tang, Jing-Yu; ,

doi:10.1007/s41365-023-01337-6

NUCL SCI TECH

2023

DOI: 10.1007/s41365-023-01337-6

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Measurement of Br(n,γ) cross sections up to stellar s-process temperatures at the CSNS Back-n

Gao-Le Yang,

Zhen-Dong An,

Wei Jiang

et al.

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2024

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Cited by 4 publications

References 49 publications

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$$^{10}$$B-doped MCP detector developed for neutron resonance imaging at Back-n white neutron source

Li,

Wang,

Tang

et al. 2024

NUCL SCI TECH

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$$^{10}$$B-doped MCP detector developed for neutron resonance imaging at Back-n white neutron source

Li,

Wang,

Tang

et al. 2024

NUCL SCI TECH

View full text Add to dashboard Cite

Study of the response of 10B-doped MCP to wide-energy range neutrons from eV to MeV

Li,

Wang,

Qiu

et al. 2024

NUCL SCI TECH

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Measurement of the neutron capture cross sections of rhenium up to stellar s - and r -process temperatures at the China Spallation Neutron Source Back-n facility

Yang,

An,

Jiang

et al. 2024

Phys. Rev. Research

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The neutron capture measurement of natural rhenium was performed with the time-of-flight technique at the Back-n facility of the China Spallation Neutron Source in the energy range from 1 to 500 eV of the resolved resonance region (RRR) and from 5 to 400 keV in the unresolved resonance region (URR). Prompt γ-rays originating from neutron-induced capture events were detected by four C6D6 detectors. The pulse height weighting technique and the double-bunch unfolding method based on the Bayesian theory were used in the data analysis. To obtain reliable measurement results, background subtraction, normalization, and corrections were carefully considered. The multilevel R-matrix Bayesian code was used to extract the resonance parameters in the RRR. An absence of resonance near 392 eV is observed in our measurement, which has been observed in previous works. The average cross sections in the URR of natural rhenium relative to Au197 were obtained in logarithmical equidistant energy bins with 20 bins per energy decade. The code was used to describe the average cross sections in the URR; the Maxwellian-averaged cross sections (MACSs) of Re185 and Re187 are given from kT=5 to 100 keV. At a thermal energy of kT=30 keV, the MACS value for Re185 (1469±127 mb) is in good agreement with the Karlsruhe Astrophysical Database of Nucleosynthesis in Stars (KADoNIS) recommended value (1535±62 mb) within the error bars. By contrast, the value of 1361±118 mb for Re187 shows a discrepancy with the recommended value (1160±57 mb). Published by the American Physical Society 2024

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Measurement of Br(n,γ) cross sections up to stellar s-process temperatures at the CSNS Back-n

Cited by 4 publications

References 49 publications

$$^{10}$$B-doped MCP detector developed for neutron resonance imaging at Back-n white neutron source

$$^{10}$$B-doped MCP detector developed for neutron resonance imaging at Back-n white neutron source

Study of the response of 10B-doped MCP to wide-energy range neutrons from eV to MeV

Measurement of the neutron capture cross sections of rhenium up to stellar s - and r -process temperatures at the China Spallation Neutron Source Back-n facility

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