锦屏深地核天体物理实验(JUNA)进展

Translated title of the contribution: Progress of Jinping Underground Nuclear Astrophysics Experiment (JUNA)

Weiping Liu, Zhihong Li, Jianjun He, Xiaodong Tang, Gang Lian, Bing Guo, Jun Su, Yunju Li, Baoqun Cui, Liangting Sun, Qi Wu, Zhu An, Qinghao Chen, Xiongjun Chen, Yangping Chen, Zhijun Chen, Xianchao Du, Changbo Fu, Lin Gan, Guozhu HeAlexander Heger, Suqing Hou, Hanxiong Huang, Ning Huang, Baolu Jia, Liyang Jiang, Shigeru Kubono, Jianmin Li, Kuoang Li, Tao Li, Maria Lugaro, Xiaobing Luo, Shaobo Ma, Dongming Mei, Yongzhong Qian, Jiuchang Qin, Jie Ren, Wanpeng Tan, Isao Tanihata, Peng Wang, Shuo Wang, Youbao Wang, Shiwei Xu, Shengquan Yan, Litao Yang, Xiangqing Yu, Qian Yue, Sheng Zeng, Huanyu Zhang, Hui Zhang, Liyong Zhang, Ningtao Zhang, Qiwei Zhang, Tao Zhang, Xiao Fang, Xiaopeng Zhang, Xuezhen Zhang, Zhimin Zhang, Wei Zhao, Zhuo Zhao, Chao Zhou, Yunhua Chen, Ningchun Qi, Shiyong Wu, Xuyuan Guo, Jifang Zhou, Shengming He, Jinhua Ning, Jianfeng Yue

Research output: Contribution to journalReview article

Abstract

Jinping Underground Nuclear Astrophysics Experiment (JUNA) will take the advantage of the ultra-low background in China Jinping Underground Laboratory (CJPL). A number of nuclear reactions important to hydrostatic stellar evolution near their Gamow window energy such as 25Mg(p, γ)26Al, 19F(p, α)16O, 13C(α, n)16O and 12C(α, γ)16O will be directly measured. At present, 400 kV high current accelerator and ECR ion source were successfully developed, and the proton and He+ (400 keV, 10 mA) and He2+ beam (800 keV, 2 mA) were successfully obtained. The development of high-power solid targets and the establishment of experimental data acquisition systems were successfully completed. Ultra-low background fast neutron detectors, 4π BGO detector arrays and large solid angle particle detector arrays were developed and assembled, and the background levels of the ground and CJPL were measured. In general, JUNA project smoothly completed the objectives set in the medium term and passed the assessment of the fund committee (Grade A) and international assessment.

Translated title of the contributionProgress of Jinping Underground Nuclear Astrophysics Experiment (JUNA)
Original languageChinese
Pages (from-to)1729-1741
Number of pages13
JournalYuanzineng Kexue Jishu/Atomic Energy Science and Technology
Volume53
Issue number10
DOIs
StatePublished - Oct 20 2019

Keywords

  • Astrophysics
  • Direct measurement
  • Gamow window energy
  • Underground laboratory

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  • Cite this

    Liu, W., Li, Z., He, J., Tang, X., Lian, G., Guo, B., Su, J., Li, Y., Cui, B., Sun, L., Wu, Q., An, Z., Chen, Q., Chen, X., Chen, Y., Chen, Z., Du, X., Fu, C., Gan, L., ... Yue, J. (2019). 锦屏深地核天体物理实验(JUNA)进展. Yuanzineng Kexue Jishu/Atomic Energy Science and Technology, 53(10), 1729-1741. https://doi.org/10.7538/yzk.2019.53.10.1729