New experimental measurement of natSe(n, γ) cross section between 1 eV to 1 keV at the CSNS Back-n facility
New experimental measurement of natSe(n, γ) cross section between 1 eV to 1 keV at the CSNS Back-n facility
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CSNS Back-n 设施中 1 eV 至 1 keV 之间的 natSe(n, γ) 截面的新实验测量
DOI：
10.1088/1674-1056/ac6ee2
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发表时间：
2022
期刊：
影响因子：
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通讯作者：
Chun-Wang M
中科院分区：
文献类型：
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作者：
Xin-Rong Hu;Long-Xiang Liu;Wei Jiang;Jie Ren;Gong-Tao Fan;Hong-Wei Wang;Xi-Guang Cao;Long-Long Song;Ying-Du Liu;Yue Zhang;Xin-Xiang Li;Zi-Rui Hao;Pan Kuang;Xiao-He Wang;Ji-Feng Hu;Bing Jiang;De-Xin Wang;Suyalatu Zhang;Zhen-Dong An;Yu-Ting Wang;Chun-Wang M
74Se 是 35 个 p 核之一，82Se 是仅 r 过程的核，它们的 (n, γ) 截面是核天体物理反应网络计算的重要输入参数。同位素甚至天然硒样品的共振范围内的中子俘获截面尚未测量。中国散裂中子源（CSNS）Back-n 设施的四台C6D6 液体闪烁体探测器探测到了中子诱发俘获事件产生的瞬发γ 射线。使用脉冲高度加权技术（PHWT）来分析1 eV至100 keV区域的数据。将推导的中子俘获截面与ENDF/B-VIII.0、JEFF-3.2、JENDL-4.0进行比较，发现了一些差异。共振参数由 R 矩阵代码 SAMMY 在 1 eV-1 keV 区域提取。数据集中给出了 natSe 和共振参数的所有横截面。
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.