高能同步辐射光源直线加速器初期调束取得重要进展  

Progress of the first-stage beam commissioning of High Energy Photon Source Linac

作　　者：孟才[1,2] 曹建社 何大勇[1,2] 何平 焦毅[1,2] 康玲 康文[1,2] 李健 李京祎[1,2] 林国平 龙锋利[1,2] 齐欣 屈化民[1,2] 宋洪 随艳峰[1,2] 王生 徐刚 叶强 张旌[1,2] 张敬如 潘卫民[1,2] Meng Cai;Cao Jianshe;He Dayong;He Ping;Jiao Yi;Kang Ling;Kang Wen;Li Jian;Li Jingyi;Lin Guoping;Long Fengli;Qi Xin;Qu Huamin;Song Hong;Sui Yanfeng;Wang Sheng;Xu Gang;Ye Qiang;Zhang Jing;Zhang Jingru;Pan Weimin(Institute of High Energy Physics,Chinese Academy of Sciences,Beijing 100049,China;University of Chinese Academy of Sciences,Beijing 100049,China)

机构地区：[1]中国科学院高能物理研究所,北京100049 [2]中国科学院大学,北京100049

出　　处：《强激光与粒子束》2023年第5期79-81,共3页High Power Laser and Particle Beams

基　　金：中国科学院青年创新促进会项目(2019016)。

摘　　要：高能同步辐射光源(HEPS)是中国第一台第四代高能同步辐射光源,其加速器由直线加速器、增强器、储存环及输运线组成。报道了HEPS直线加速器的初期束流调试重要进展。HEPS直线加速器是一台500 MeVS波段常温直线加速器,由热阴极电子枪、聚束系统、主直线加速器构成。在按时完成设备加工、安装和老练的基础上,于2023年3月9日启动束流调试,当天实现束流全线贯通。3月14日束流能量达到500 MeV,束团电荷量达到2.5 nC。经过测量,直线加速器出口束流能散0.4%,能量稳定度0.06%,水平和垂直几何发射度分别为233 nm和145 nm。目前直线加速器束团电荷量可达到7.0 nC,相关束流调试正在进行。The High Energy Photon Source(HEPS)is the first fourth-generation synchrotron radiation sourcethat will operate in high energy region in China.The HEPS accelerator consists of a linear accelerator,a booster,astorage ring and three transfer lines.This paper presents important progress on the HEPS Linac.The 500 MeV Linachas been constructed using S-band normal conducting structures,including a thermionic cathode electron gun,beambunching system,and main accelerating section.After completing the equipment installation and high-power RFconditioning,the beam commissioning was started on March 9,2023.The beam was successfully transferred to theend of the Linac on the same day,and a beam with 500 MeV of energy and 2.5 nC of pulse charge was achievedwithin 5 days.As measured up to date at the Linac exit,the beam energy spread and energy stability are 0.4%and0.06%respectively,and the horizontal and vertical geometric emittances are 233 nm and 145 nm,respectively.Themaximum bunch charge reaches up to 7.0 nC.Further beam commissioning will be implemented to gain fullperformance of the Linac.

关 键 词：HEPS直线加速器 高能同步辐射光源 束流调试 束流能量 束团电荷量 

分 类 号：TL53[核科学技术—核技术及应用]