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6 results on '"Jiang, Liyang"'

1. Commissioning of Underground Nuclear Astrophysics Experiment JUNA in China

Author

Liu Weiping, Li Zhihong, He Jianjun, Tang Xiaodong, Lian Gang, Su Jun, Shen Yangping, An Zhu, Chao Fuqiang, Chang Jianjun, Chen Lihua, Chen Han, Chen Xiongjun, Chen Yunhua, Chen Zhijun, Cheng Jianping, Cui Baoqun, Fang Xiao, Fu Changbo, Gan Lin, Guo Bing, Han Zhiyu, Guo Xuyuan, He Guozhu, He Jinrong, Heger Alexander, Hou Suqing, Huang Hanxiong, Huang Ning, Jia Baolu, Jiang Liyang, Kubono Shigeru, Li Jianmin, Li Mingchuan, Li Kuoang, Li Ertao, Li Tao, Li Yunju, Lugaro Maria, Luo Xiaobing, Ma Hongyi, Ma Shaobo, Mei Dongming, Nan Wei, Nan Weike, Qi Ningchun, Qian Yongzhong, Qin Jiuchang, Ren Jie, Shang Changsong, Sun Liangting, Sun Wenliang, Tan Wanpeng, Tanihata Isao, Wang Shuo, Wang Peng, Wang Youbao, Wu Qi, Xu Shiwei, Yang Yao, Yu Xiangqing, Yue Qian, Zeng Sheng, Zhang Long, Zhang Hao, Zhang Huanyu, Zhang Liyong, Zhang Ningtao, Zhang Peng, Zhang Qiwei, Zhang Tao, Zhang Xiaopeng, Zhang Xuezhen, Zhao Wei, Zhou Jifang, and Zhou Yong

Subjects
Physics, QC1-999
Abstract

Underground Nuclear Astrophysics Experiment in China (JUNA) has been commissioned by taking the advantage of the ultra-low background in Jinping underground lab. High current mA level 400 KV accelerator with an ECR source and BGO detectors were commissioned. JUNA studies directly a number of nuclear reactions important to hydrostatic stellar evolution at their relevant stellar energies. In the first quarter of 2021, JUNA performed the direct measurements of 25Mg(p,γ)26Al, 19F(p,α)16O, 13C(α,n)16O and 12C(α,γ)16O near the Gamow window. The experimental results reflect the potential of JUNA with higher statistics, precision and sensitivity of the data. The preliminary results of JUNA experiment and future plan are given.

Published
2022
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2. Underground nuclear astrophysics experiment JUNA in China

Author

Qin Jiuchang, Chen Han, Ma Shaobo, Zhao Zuo, Zhang Ningtao, Li Kuoang, Hou Suqing, Lugaro Maria, Tan Wanpeng, Wang Shuo, Yang Yao, Cui Baoqun, Shen Yangping, Su Jun, Qian Yongzhong, T. A.N.G. Xiaodong, He Guozhu, Chen Xiongjun, Zhang Tao, Zhang Ziming, Yang Litao, Yu Xiangqing, Sun Liangting, Chen Qinghao, Zhou Chao, Zhang Liyong, Guo Bing, Kubono Shigeru, Zhang Qiwei, Yue Qian, An Zhu, Chang Jianjun, Zhao Wei, Fu Changbo, Wu Qi, Lian Gang, Tanihata Isao, Huang Ning, Zhang Xuezhen, Liu Wei-Ping, H. E. Jiangjun, Li Jian-Min, Zhang Huanyu, Mei Dongming, Zeng Sheng, Chen Zhijun, Li Yun-Ju, Wang Youbao, L. I. Zhihong, Jia Baolu, Jiang Liyang, Xu Shiwei, Chen Lihua, Huang Hanxiong, Zhang Hui, Zhang Xiaopeng, Gan Lin, Wang Peng, Ren Jie, Luo Xiaobing, Yan Sheng-Quan, Du Xianchao, Li Tao, Ma Hongyi, and Heger Alexander

Subjects
Physics, Nuclear physics, Nuclear reaction, 010308 nuclear & particles physics, Space and Planetary Science, 0103 physical sciences, Underground laboratory, Nuclear astrophysics, Astronomy and Astrophysics, High current, 010303 astronomy & astrophysics, 01 natural sciences, Stellar evolution
Abstract

Underground Nuclear Astrophysics in China (JUNA) will take the advantage of the ultra-low background in Jinping underground lab. High current accelerator with an ECR source and detectors were commissioned. JUNA plans to study directly a number of nuclear reactions important to hydrostatic stellar evolution at their relevant stellar energies. At the first period, JUNA aims at the direct measurements of 25Mg(p,γ)26 Al, 19F(p,α) 16 O, 13C(α, n) 16O and 12C(α,γ) 16O near the Gamow window. The current progress of JUNA will be given.

Published
2019

3. Nuclear data measurement activities at CIAE

Author

Ruan Xichao, Jiang Liyang, Yang Yi, Liu Shilong, Nie Yangbo, Wang Zhaohui, Chen Xiongjun, Yu Weixiang, and Ge Zhigang

Subjects
Physics, QC1-999
Abstract

China Institute of Atomic Energy (CIAE) is one of the most important bases for nuclear data measurement in China. In this paper, the nuclear data measurement activities at CIAE in recent years are presented. The secondary neutron emission DX and DDX measurement, the integral experiment for nuclear data benchmarking, the excitation function measurement, the neutron induced fission yields measurement and the gamma production yields measurement carried out in recent years are introduced. Furthermore, the progress of some new facilities and proposed plans (e.g. A Gamma ray Total Absorption Facility (GTAF) for (n,γ) reaction cross section measurement, A 3He detector array for (n,2n) reaction cross section measurement, the back streaming white neutron beam for nuclear data measurement at China Spallation Neutron Source (CSNS)) are also presented.

Published
2017
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4. Progress of Jinping Underground laboratory for Nuclear Astrophysics (JUNA)

Author

Liu WeiPing, Li ZhiHong, He JiangJun, Tang XiaoDong, Lian Gang, An Zhu, Chang JianJun, Chen Han, Chen QingHao, Chen XiongJun, Chen ZhiJun, Cui BaoQun, Du XianChao, Fu ChangBo, Gan Lin, Guo Bing, He GuoZhu, Heger Alexander, Hou SuQing, Huang HanXiong, Huang Ning, Jia BaoLu, Jiang LiYang, Kubono Shigeru, Li JianMin, Li KuoAng, Li Tao, Li YunJu, Lugaro Maria, Luo XiaoBing, Ma HongYi, Ma ShaoBo, Mei DongMing, Qian YongZhong, Qin JiuChang, Ren Jie, Shen YangPing, Su Jun, Sun LiangTing, Tan WanPeng, Tanihata Isao, Wang Shuo, Wang Peng, Wang YouBao, Wu Qi, Xu ShiWei, Yan ShengQuan, Yang LiTao, Yang Yao, Yu XiangQing, Yue Qian, Zeng Sheng, Zhang HuanYu, Zhang Hui, Zhang LiYong, Zhang NingTao, Zhang QiWei, Zhang Tao, Zhang XiaoPeng, Zhang XueZhen, Zhang ZiMing, Zhao Wei, Zhao Zuo, and Zhou Chao

Subjects
Physics, QC1-999
Abstract

Jinping Underground lab for Nuclear Astrophysics (JUNA) will take the advantage of the ultralow background in Jinping underground lab, high current accelerator based on an ECR source and highly sensitive detector to study directly a number of crucial reactions to the hydrostatic stellar evolution for the first time at their relevant stellar energies. In its first phase, JUNA aims at the direct measurements of 25Mg(p,γ)26Al, 19F(p,α)16O, 13C(α,n)16O and 12C(α,γ)16O. The experimental setup, which include the accelerator system with high stability and high intensity, the detector system, and the shielding material with low background, will be established during the above research. The current progress of JUNA will be given.

Published
2016
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5. Evaluation of the 125Sb nuclear decay data

Author

Wang Jimin, Liu Lile, Jiang Liyang, Kang Mengxiao, Huang Xiaolong, and Chen Guochang

Subjects
Physics, Nuclear and High Energy Physics, Decay scheme, 010308 nuclear & particles physics, Value (computer science), Statistical weight, 01 natural sciences, 030218 nuclear medicine & medical imaging, Intensity (physics), Nuclear physics, 03 medical and health sciences, 0302 clinical medicine, Internal conversion, 0103 physical sciences, Instrumentation, Radioactive decay, Line (formation)
Abstract

Evaluation of the complete decay scheme and data for 125 Sb/ 125m Te decay to nuclear levels in 125 Te is presented in this report; literature data available up to June 2015 are included. The Limitation of Relative Statistical Weight Method (LRSW) was applied to average numbers throughout the evaluation. The uncertainty assigned to the average value was always greater than or equal to the smallest uncertainty of the values used to calculate the average. The half-life has been determined to be 1007.4±0.3 days. All known measured γ-ray absolute or relative intensities have been examined; the γ-ray emission probability of the reference γ-ray line of 427.874 keV is recommended to be 29.54±0.10%. The theoretical internal conversion coefficients and their uncertainties were used to obtain the complete decay scheme intensity balance. The values of other decay characteristics were calculated using the ENSDF analysis program. Finally the updated decay scheme for 125 Sb is presented.

Published
2016

6. Progress of Jinping Underground Nuclear Astrophysics Experiment (JUNA) project

Author

Weiping Liu, Liu WeiPing, Li ZhiHong, He JianJun, Tang XiaoDong, Lian Gang, An Zhu, Chang JianJun, Chen Han, Chen QingHao, Chen XiongJun, Chen ZhiJun, Cui BaoQun, Du XianChao, Fu ChangBo, Gan Lin, Guo Bing, He GuoZhu, Heger Alexander, Hou SuQing, Huang HanXiong, Huang Ning, Jia BaoLu, Jiang LiYang, Kubono Shigeru, Li JianMin, Li KuoAng, Li Tao, Li YunJu, Lugaro Maria, Luo XiaoBing, Ma HongYi, Ma ShaoBo, Mei DongMing, Qian YongZhong, Qin JiuChang, Ren Jie, Shen YangPing, Su Jun, Sun LiangTing, Tan WanPeng, Tanihata Isao, Wang Shuo, Wang Peng, Wang YouBao, Wu Qi, Xu ShiWei, Yan ShengQuan, Yang LiTao, Yang Yao, Yu XiangQing, Yue Qian, Zeng Sheng, Zhang HuanYu, Zhang Hui, Liyong Zhang, Zhang NingTao, Zhang QiWei, Zhang Tao, Zhang XiaoPeng, Zhang XueZhen, Zhang ZiMing, Zhao Wei, and Zhao Zuo

Subjects
Physics, Nuclear physics, Underground laboratory, Nuclear astrophysics, High current, Highly sensitive
Abstract

Jinping Underground laboratory for Nuclear Astrophysics (JUNA) project takes the advantage of the ultra-low background of CJPL lab, high current accelerator and highly sensitive detectors to directly measure a number of crucial reactions occurring at their relevant astrophysical ener- gies. In current phase, JUNA aims at the direct measurements of 25Mg(p,γ)26Al, 19F(p,α)16O, 13C(α,n)16O and 12C(α,γ)16O reactions. The progress, including experimental setup, accelerator system, detector development, and low background test, will be presented.

Published
2017

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