锦屏深地核天体物理实验(JUNA)地面实验进展  

Progress of the Ground Experiments of Jinping Underground Nuclear Astrophysics Experiment

作　　者：柳卫平[1] 李志宏[1,2] 何建军 唐晓东[2,3] 连钢 郭冰 苏俊[1,4] 李云居[1] 崔保群[1] 孙良亭 武启[3] 安竹[5] 谌阳平[1] 陈治钧[3] 杜先超[1] 符长波 甘林 贺国珠 Alexander Heger 侯素青[3] 黄翰雄[1] 黄宁 江历阳 Shigeru Kubono[9] 李荐民 李阔昂[3] 李涛 Maria Lugaro[10] 罗小兵 马少波[3] 韩治宇 李鑫悦[1] 马田丽 梅东明 南威克 南巍 陈晨 张昊 张龙 曹富强 钱永忠 秦久昌 任杰 谭万鹏[13] Isao Tanihata[14] 王鹏 王硕 王友宝 许世伟[3] 颜胜权 曾志[7] 于祥庆[3] 岳骞[7] 曾晟 张环宇[1] 张辉 杨丽桃[6] 张立勇 张宁涛 张奇玮 张涛[16] 方晓 张笑鹏[18] 张雪珍 陈云华[19] 祁宁春[19] 吴世勇[19] 郭绪元[19] 周济芳[19] 何胜明[19] 宁金华[19] 岳剑锋[19] LIU Weiping;LI Zhihong;HE Jianjun;TANG Xiaodong;LIAN Gang;GUO Bing;SU Jun;LI Yunju;CUI Baoqun;SUN Liangting;WU Qi;AN Zhu;CHEN Yangping;CHEN Zhijun;DU Xianchao;FU Changbo;GAN Lin;HE Guozhu;Alexander Heger;HOU Suqing;HUANG Hanxiong;HUANG Ning;JIANG Liyang;Shigeru Kubono;LI Jianmin;LI Kuoang;LI Tao;Maria Lugaro;LUO Xiaobing;MA Shaobo;HAN Zhiyu;LI Xinyue;MA Tianli;MEI Dongming;NAN Weike;NAN Wei;CHEN Chen;ZHANG Hao;ZHANG Long;CAO Fuqiang;QIAN Yongzhong;QIN Jiuchang;REN Jie;TAN Wanpeng;Isao Tanihata;WANG Peng;WANG Shuo;WANG Youbao;XU Shiwei;YAN Shengquan;ZENG Zhi;YU Xiangqing;YUE Qian;ZENG Sheng;ZHANG Huanyu;ZHANG Hui;YANG Litao;ZHANG Liyong;ZHANG Ningtao;ZHANG Qiwei;ZHANG Tao;FANG Xiao;ZHANG Xiaopeng;ZHANG Xuezhen;CHEN Yunhua;QI Ningchun;WU Shiyong;GUO Xuyuan;ZHOU Jifang;HE Shengming;NING Jinhua;YUE Jianfeng(China Institute of Atomic Energy,Beijing 102413,China;School of Nuclear Science and Technology,University of Chinese Academy of Sciences,Beijing 101408,China;Institute of Mordern Physics,Chinese Academy of Sciences,Lanzhou 730000,China;College of Nuclear Science and Technology,Beijing Normal University,Beijing 100875,China;Institute of Nuclear Science and Technology,Sichuan University,Chengdu 610041,China;Department of Engineering Physics,Tsinghua University,Beijing 100084,China;Institue of Modern Physics,Fudan University,Shanghai 200433,China;School of Physics and Astronomy,Monash University,Melbourne 3800,Australia;Institute of Physical and Chemical Research,Saitama Prefecture and Hokkaido 3510198,Japan;Conakry Observatory,Research Centre for Astronomy and Earth Science,Budapest 10111239,Hungary;University of South Dakota,State Ultra Low Background Particle Physics Experiment Centre,South Pakota Vermilion 57069,America;School of Physics and Astronomy,University of Minnesota,Minnesota polis/St.Paul 55455,America;Nuclear Astrophysics Department,University of Notre Dame,Indiana Notre Dame 102413,China;Research Center for Nuclear Physics,Osaka Unibversity,Suita City 5650887167,Japan;School of Space Science and Physi

机构地区：[1]中国原子能科学研究院核物理研究所,北京102413 [2]中国科学院大学核科学与技术学院,北京101408 [3]中国科学院近代物理研究所,兰州730000 [4]北京师范大学核科学与技术学院,北京100875 [5]四川大学原子核科学技术研究所,成都610041 [6]清华大学工程物理学,北京100084 [7]复旦大学现代物理研究所,上海200433 [8]莫纳什大学物理与天文学院,澳大利亚墨尔本3800 [9]日本理化学研究所尼什纳加速器科学中心,日本埼玉3510198 [10]康克里天文台天文学与地球科学研究中心,匈牙利布达佩斯10111239 [11]南达科他大学州立超低背景粒子物理实验中心,美国南达科他州57069 [12]明尼苏达大学物理与天文学院,美国明尼苏达州55455 [13]圣母大学核天体物理系,美国印第安纳州46556 [14]大阪大学核物理研究所,日本大阪565087167 [15]山东大学空间科学与物理学院,山东威海264209 [16]上海交通大学物理与天文学院,上海200240 [17]中山大学中法核工程与技术学院,广州510275 [18]中国科学院高能物理研究所,北京100049 [19]雅砻江流域水电开发有限公司,成都610056

出　　处：《原子核物理评论》2020年第3期283-290,共8页Nuclear Physics Review

基　　金：国家自然科学基金资助项目(11490560,11475265);国家财政部稳定支持项目(WDJC-2019-13)。

摘　　要：锦屏深地核天体物理(JUNA)实验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^(25)Mg(p,γ)^(26)Al、^(19)F(p,α)^(16)O、^(13)C(α,n)^(16)O和^(12)C(α,γ)^(16)O的直接测量,为理解恒星演化和元素起源提供新的数据。目前,已经在地面上对加速器装置、束流稳定性、靶、探测器以及电子学进行了系统的测试。地面实验内容包括高纯锗探测器效率刻度,^(25)Mg(p,γ)^(26)Al在304 keV的共振强度测量,^(19)F(p,δ)^(16)O的截面测量,聚乙烯作为慢化体的中子探测器的设计、加工和效率刻度,靶的设计和稳定性检测等。JUNA项目整体进展顺利,地面实验已取得一系列关键进展和初步成果。在不远的将来,JUNA项目将有序开展地下实验,完成设定目标,也将促进更广泛的国际合作,助力于天体演化中的若干重大科学问题的解决。A number of nuclear reactions such as^(25)Mg(p,γ)^(26)Al,^(13)C(α,n)^(16)O,^(12)C(α,β)^(16)O and ^(19 )F(p,α)^(16)O will be measured directly down to the Gamow window energy range in Jinping Underground Nuclear Astrophysics(JUNA)Experiment,taking the advantage of the ultra-low background in China Jinping Unerground Laboratory(CJPL).The measurements can provide updated data for understanding the evolution of stars and the origin of elements.Up to now,tests of accelerator,beam,targets,detectors,and electronics have been performed systematically on the ground.The high-purity germanium detectors efficiency calibration,304 keV resonance strengths measurement in^(25)Mg(p,γ)^(26)Al,^(19) F(p,α)^(16)O cross section measurement,neutron detector design,production and efficiency calibrationas as well as target design and stability test are included as overground experiments.The Whole JUNA project is going smoothly in general.A series of key progresses and primary results have been reached on the ground.Underground experiments in the JUNA project will be carried out in order and reach the prospected goals in the near future.Broader international cooperation will also be promoted,supporting the solution of several major scientific problems in the evolution of cosmogony.

关 键 词：天体物理 深地实验室 直接测量 伽莫夫能量窗口 

分 类 号：O571[理学—粒子物理与原子核物理]