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Ren, Jie; Ruan, Xichao; Jiang, Wei; Bao, Jie; Luan, Guangyuan; Zhang, Qiwei; Huang, Hanxiong; Nie, Yao; Zhang, Ge; An, Qi; Bai, Huaiyong; Bao, Yu; Cao, Ping; Chen, Haolei; Chen, Qiping; Chen, Yonghao; Chen, Zhen; Cui, Zengqi; Fan, Ruirui; Feng, C. Q.; Gao, Keqing; Gu, Min; Han, Changcai; Han, Zijie; He, Guo‐Zhong; He, Yongcheng; Yang, Hong; Huang, Weiling; Huang, Xiru; Ji, Xiaolu; Ji, Xiuling; Jiang, Haoyu; Jiang, Zhijie; Jing, Hantao; Kang, Lihua; Kang, Mingtao; Li, Bo; Li, Chao; Li, Jiawen; Li, Lun; Li, Qiang; Xiao, Li; Li, Yang; Liu, Rong; Liu, Shubin; Liu, Xingyan; Mu, Qili; Ning, Changjun; Qi, Binbin; Ren, Zhongzhou; Song, Yingpeng; Zhang, Song; Sun, Hong-xiang; Sun, Xiaoyang; Sun, Zhi‐Wei; Tan, Zhixin; Tang, Hongqing; Tang, Jingyu; Tang, Xinyi; Tian, Binbin; Wang, Lijiao; Wang, Pengcheng; Wang, Qi; Wang, Taofeng; Wang, Zhaohui; Wen, Jie; Wen, Zhengqi; Wu, Qingbiao; Wu, X.; Wu, Xuan; Xie, Likun; Yang, Yiwei; Yu, Lei; Yu, Tao; Yu, Yongji; Zhang, Guohui; Zhang, Linhao; Zhang, Xianpeng; Zhang, Yuliang; Zhang, Zhiyong; Zhao, Y. B.; Zhou, Lei; Zhou, Zuying; Zhu, Dan; Zhu, K.; Zhu, Ping

doi:10.1016/j.nima.2020.164703

Cited by 17 publications

(5 citation statements)

References 26 publications

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“…And in this region, there are only three previous experimental data points from R. L. Mackin et al [39] and T. S. Belanova. [40] Considering there being a large in-beam gamma background, [34] it is difficult to subtract completely the whole background limited to the current experiment conditions. On the other hand, the white neutron source (WNS) used the double-bunch mode of proton pulse, which limits the neutron energy resolution in the energy region of above 1 keV.…”

Section: Resultsmentioning

confidence: 99%

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New experimental measurement of ^natSe(n, γ) cross section between 1 eV to 1 keV at the CSNS Back-n facility

Hu¹,

Liu²,

Jiang³

et al. 2022

Chinese Phys. B

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74Se is one of 35 p-nuclei, and 82Se is a r-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. The datasets are openly available at http://www.doi.org/10.11922/sciencedb.j00113.00019 or https://www.scidb.cn/en/s/feiER3.

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Section: Resultsmentioning

confidence: 99%

“…The uncertainty of the normalized factor of the gold sample at the saturated resonance energy of 4.9 eV is about 1%. According to J. Ren et al, [34] there is an obvious in-beam gamma background at time-of-flight between 20 µs and 400 µs, namely, the keV energy region. The whole uncertainties are presented in Table 2.…”

Section: Uncertainty Analysismentioning

confidence: 99%

New experimental measurement of ^natSe(n, γ) cross section between 1 eV to 1 keV at the CSNS Back-n facility

Hu¹,

Liu²,

Jiang³

et al. 2022

Chinese Phys. B

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“…For neutron capture cross section measurements with C 6 D 6 detectors at Back-n, there are mainly two background types: [39] 1) Sample-independent background, which is not correlated with the sample, like environmental radioactivity, and so on. 2) Sample-dependent background, which is correlated with the sample because of the scattering of in beam particles.…”

Section: Background Analysismentioning

confidence: 99%

Measurements of the ¹⁰⁷ Ag neutron capture cross sections with pulse height weighting technique at the CSNS Back-n facility

Liu

Jiang

et al. 2022

Chinese Phys. B

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Silver indium cadmium (Ag-In-Cd) control rod is widely used in pressurized water reactor nuclear power plants, and which is continuously consumed in a high neutron flux environment. The mass ratio of 107Ag in Ag-In-Cd control rod is 41.44%. To accurately calculate the consumption value of the control rod, a reliable neutron reaction cross section of the 107Ag is required. Meanwhile, 107Ag is also an important weak r nuclei. Thus, the cross sections for neutron induced interactions with 107Ag are very important both in nuclear energy and nuclear astrophysics. The (n, γ) cross section of 107Ag has been measured in the energy range of 1-60 eV using a back streaming white neutron beam line at China spallation neutron source. The resonance parameters are extracted by an R-matrix code. All the cross section of 107Ag and resonance parameters are given in this paper as datasets. The datasets are openly available at https://www.scidb.cn/s/aaUJbu.

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“…实验本底 [15] 主要是由中子和 g 射线引起的本底, 包括束流、样品、探测系统和环境相关的本底. 实验中在第一个准直器前面放置1 mm厚镉(Cd) 吸收片, 用于去掉源中子能谱中小于0.3 eV能区中子 [16] .…”

Section: 实验本底unclassified

Neutron capture cross section measurements for <sup>nat</sup>Lu with different thickness

王德鑫¹,

张苏雅拉吐²,

蒋伟³

et al. 2022

Acta Phys. Sin.

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The C6D6 detection system coupled with the pulse height weighting technique is widely used for experimental measurements of the neutron capture cross section. The thickness of sample used in the experiment directly affects the neutron beam time and the reliability of the experimental data. In the present work, the comparison of lutetium (Lu) neutron capture reaction cross section experiment with different sample thickness were studied by the C6D6 detection system of the back-streaming white neutron beam line at China spallation Neutron Source (CSNS back-n). The light response of the detection system was simulated with the considering of the sample thickness by GEANT4 Monte Carlo simulation code. The 4th order polynomial pulse weight function for different samples was determined by using the above light response function. In the experiment, the high precision capture yield distributions in the resonance energy region were obtained by applying longer neutron time of flight distance and dedicated background measurements. The experimental resonance parameters were deduced by analyzing of the capture yield distributions with the R-matrix theory. By comparing the results of capture yield and resonance parameters between the two groups, it is found that the resonance curve of 1.06mm natLu sample changes due to its thickness effect, and there is a large gap between the experimental resonance parameters and ENDF/B-VIII.0 database. However, the experimental results of 0.206mm natLu samples can well reproduce the ENDF/B-VIII. 0 data.

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Background study for(n,γ)cross section measurements with C6D
Jie Ren
¹
,
Xichao Ruan
²
,
Wei Jiang
³

et al.

Cited by 17 publications

References 26 publications

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

Measurements of the ¹⁰⁷ Ag neutron capture cross sections with pulse height weighting technique at the CSNS Back-n facility

Neutron capture cross section measurements for <sup>nat</sup>Lu with different thickness

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Background study for(n,γ)cross section measurements with C6DJie Ren1, Xichao Ruan2, Wei Jiang3 et al.

Cited by 17 publications

References 26 publications

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

Measurements of the 107 Ag neutron capture cross sections with pulse height weighting technique at the CSNS Back-n facility

Neutron capture cross section measurements for <sup>nat</sup>Lu with different thickness

Contact Info

Product

Resources

About

Background study for(n,γ)cross section measurements with C6D
Jie Ren
¹
,
Xichao Ruan
²
,
Wei Jiang
³

et al.

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

Measurements of the ¹⁰⁷ Ag neutron capture cross sections with pulse height weighting technique at the CSNS Back-n facility