锦屏深地核天体物理实验(JUNA)进展
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 HE,Alexander 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 Energy Science and Technology（2019）
摘要
锦屏深地核天体物理实验(JUNA)项目将利用中国锦屏深地实验室(CJPL)的良好条件,在天体物理伽莫夫能量窗口开展核天体关键反应25Mg(p,γ)25Al、19F(p,α)16O、13C(α,n)16O和12C(α,γ)16O的直接测量.目前已成功完成400 kV强流加速器和ECR离子源的研发,获得了400 keV、10 mA的质子束流和一价氦离子束流及800 keV、2 mA二价氦离子束流.大功率固体靶的研制及实验数据获取系统的建立也已成功完成.超低本底快中子探测器、4πBGO探测器阵列以及大立体角带电粒子探测器阵列已研制组装完成,并测量了地面和锦屏地下实验室的本底水平.总体来说,JUNA项目整体进展顺利,完成了中期设立的目标并通过了基金委评估(A级)和国际评估.
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