用于不稳定核研究的精密激光核谱学的发展与机遇  

Progress and Opportunity of Precision Laser Spectroscopy for the Study of Unstable Nuclei

作　　者：刘寅绅 杨晓菲 张鹏 胡晗睿 白世伟 王姝婧 刘永超 郭洋帆 林喆阳 严周 梅文聪 陈少杰 倪欣悦 谢秉奇 叶沿林[1] 李奇特[1] 李弘伟 贺创业[2] 杨杰[3] 刘作业[4] LIU Yinshen;YANG Xiaofei;ZHANG Peng;HU Hanrui;BAI Shiwei;WANG Shujing;LIU Yongchao;GUO Yangfan;LIN Zheyang;YAN Zhou;MEI Wencong;CHEN Shaojie;NI Xinyue;XIE Bingqi;YE Yanlin;LI Qite;LI Hongwei;HE Chuangye;YANG Jie;LIU Zuoye(School of Physics and State Key Laboratory of Nuclear Physics and Technology,Peking University,Beijing 100871,China;China Institute of Atomic Energy(CIAE),P.O.Box 275(10),Beijing 102413,China;Institute of Modern Physics,Chinese Academy of Sciences,Lanzhou 730000,China;School of Nuclear Science and Technology,Lanzhou University,Lanzhou 730000,China)

机构地区：[1]北京大学物理学院和核物理与核技术国家重点实验室,北京100871 [2]中国原子能科学研究院,北京102413 [3]中国科学院近代物理研究所,兰州730000 [4]兰州大学核科学与技术学院,兰州730000

出　　处：《原子核物理评论》2024年第1期26-34,共9页Nuclear Physics Review

基　　金：国家自然科学基金资助项目(12027809,U1967201,11961141003);国家重点研发计划(2022YFA1604800,2023YFE0101600)。

摘　　要：不稳定原子核的基本性质是开展奇特核结构研究的重要依据。基于多学科交叉的精密激光核谱技术可以通过测量原子、离子或分子的超精细结构谱提取原子核自旋、磁矩、电四极矩、电荷半径等基本性质,目前在核素版图各质量区域的不稳定核奇特结构研究中均发挥着重要作用。本工作从超精细结构谱的研究历史出发,阐述了精密激光核谱技术的基本原理和测量方法。在此基础上,以Pb(Z=82)核区丰质子侧不稳定核的结构研究为例简述了激光核谱学方法在核结构研究中的独特优势。此外还介绍了近年来国内共线激光谱和共线共振电离谱技术的发展现状与最新进展。最后展望了激光核谱技术在未来国内的核物理大科学装置上的应用规划,在不稳定核性质和结构,以及基于放射性分子谱的基本对称性研究方面的广阔前景。The basic properties of atomic nuclei including spins,magnetic moments,electric quadrupole moments and charge radii,are sensitive probes to different aspects of exotic nuclear structure,and are also important to investigate the unrevealed nature of interaction between nucleons.Based on multidiscipline,laser spectroscopy is a unique tool to precisely measure the basic nuclear properties mentioned above in a nuclear-model independent way by measuring the hyperfine structure of atoms,ions,or molecules,which has played an important role in the study of exotic nuclear structures across the different regions of the nuclear chart.Basic principles of laser spectroscopy and various types of experimental devices are expounded after the brief history of the hyperfine structure.Furthermore,advantages of utilizing laser spectroscopy in the study of nuclear structure are briefly introduced by taking the radioactive neutron-deficient Pb region as an illustration.In addition,current condition of collinear laser spectroscopy setup has been systematically reviewed,together with the latest progress on collinear resonance ionization spectroscopy offline devices at Peking University.Finally,the developing status and ongoing plan of laser spectroscopy devices for current and future radioactive ion beam facilities in China have been put forward,and the broad prospects of laser spectroscopy in unstable nuclear properties and the fundamental symmetries based on molecular spectroscopy are interpreted.

关 键 词：超精细结构 激光谱技术 不稳定原子核 荧光探测 离子探测 

分 类 号：O571.53[理学—粒子物理与原子核物理]