上海激光电子伽马源的建设与试运行  

Construction and Trial Operation of Shanghai Laser Electron Gamma Source

作　　者：王宏伟 范功涛[1,2,3] 许杭华 刘龙祥[1] 张岳 郝子锐 杨宇萱 金晟 陈开杰 李志才 焦普 周梦蝶 王振伟 WANG Hongwei;FAN Gongtao;XU Hanghua;LIU Longxiang;ZHANG Yue;HAO Zirui;YANG Yuxuan;JIN Sheng;CHEN Kaijie;LI Zhicai;JIAO Pu;ZHOU Mengdie;WANG Zhenwei(Shanghai Advanced Research Institute,Chinese Academy of Sciences,Shanghai 201210,China;University of Chinese Academy of Sciences,Beijing 100049,China;Shanghai Institute of Applied Physics,Chinese Academy of Science,Shanghai 201800,China;School of Physics,Zhengzhou University,Zhengzhou 450001,China;School of Physics Science and Technology,ShanghaiTech University,Shanghai 201210,China;School of Nuclear Science and Technology,University of South China,Hengyang 421001,Hunan,China;School of Physics,Henan Normal University,Xinxiang 453007,Henan,China)

机构地区：[1]中国科学院上海高等研究院,上海201210 [2]中国科学院大学,北京100049 [3]中国科学院上海应用物理研究所,上海201800 [4]郑州大学物理学院,郑州450001 [5]上海科技大学物质科学与技术学院,上海201210 [6]南华大学核科学技术学院,湖南衡阳421001 [7]河南师范大学物理学院,河南新乡453007

出　　处：《原子核物理评论》2024年第1期67-74,共8页Nuclear Physics Review

基　　金：国家重点研发计划项目(2022YFA1602400);国家自然科学基金资助项目(12275338,12005280);核数据重点实验室基金(JCKY2022201C152);中国科学院国际人才计划访问学者项目(2021VMA0025)。

摘　　要：介绍了上海光源线站工程之一的上海激光电子伽马源(Shanghai Laser Electron Gamma Source,SLEGS)光束线站的建设与试运行情况,在SLEGS装置上可以开展核物理、核天体物理等基础研究、开展伽马辐照、伽马成像及伽马活化等应用研究。SLEGS光束线站在2021年12月通过工艺验收,2022年10月进入到试运行阶段,2023年9月对用户开放运行。SLEGS是国际上首台采用变换碰撞角度连续改变伽马束能量的光束线站,具有最好的能量扫描精度、流强密度以及高效的能量调节能力。试运行阶段SLEGS光束线站重点解决了伽马束能谱和流强的在线监测问题,主要完成了平坦效率谱仪(FED)测量光中子截面的实验方法学研究,以及开展了伽马成像、伽马活化、正电子产生等应用平台的拓展和研究。随着逆康普顿散射技术的发展和应用需求的增加,未来短脉冲、高极化、高通量以及小型化的激光康普顿散射光源将会迎来更好的发展机遇,将在核物理、天体物理、粒子物理、极化物理,以及航空航天、医学检测、能源开发等伽马源应用研究领域发挥重要的作用。This article introduces the construction and trial operation of Shanghai Laser Electron Gamma Source(SLEGS)beamline,one of the Shanghai Synchrotron radiation Facility(SSRF)projects II,which can carry out basic research on nuclear physics and nuclear astrophysics,and applied research,such as gamma irradiation,gamma imaging and gamma activation.The SLEGS beamline passed the process acceptance in December 2021,entered the trial operation stage in October 2022,and have open to users in September 2023.SLEGS is the first Laser Compton Slant Scattering(LCSS)beamline in the world use the continuous collision angle mode to change the energy of the gamma beam,with the best ability of energy scanning accuracy,beam intensity and efficient energy regulation.In the trial operation stage,the SLEGS beamline station focused on solving the problem of online monitoring of gamma beam energy spectrum and beam intensity,mainly completed the experimental methodology research of photo neutron cross section measurement by Flat Efficiency Detectors(FED),and carried out the expansion and research of application platforms,such as gamma imaging,gamma activation and positron source generation.With the development of inverse Compton scattering techniques,short-pulse,high-polarization,high-intensity and miniaturized laser Compton scattering light sources will be in better development opportunities in the future,and will play an important role in nuclear physics,astrophysics,particle physics,polarization physics,as well as aerospace,medical testing,energy development and other gamma source application research fields.

关 键 词：激光康普顿散射 SLEGS 光核反应 集体运动 

分 类 号：O571.1[理学—粒子物理与原子核物理] O571.424[理学—物理]