HLS-Ⅱ直线加速器能量调节及应用  

Energy adjustment and application of the HLS-II linac

作　　者：倪汪彪 于永波 宣科[1] 徐卫[1] 李川[1] 刘功发[1] Ni Wangbiao;Yu Yongbo;Xuan Ke;Xu Wei;Li Chuan;Liu Gongfa(National Synchrotron Radiation Laboratory,University of Science and Technology of China,Hefei 230026,China)

机构地区：[1]中国科学技术大学国家同步辐射实验室,合肥230026

出　　处：《强激光与粒子束》2023年第9期103-110,共8页High Power Laser and Particle Beams

基　　金：国家自然科学基金项目(11975227);中国科学院合肥大科学中心项目(2019HSC-KPRD003)。

摘　　要：为了高效地对直线加速器输出束流能量进行调节,设计了合肥光源(HLS-II)直线加速器束流能量调节方案。该方案在调试阶段通过能谱分析系统观察束团状态并测量束流能量,储存环注入阶段使用3个束流位置探测器(BPM)对束流能量进行在线测量;使用自动相位扫描程序对速调管输出相位进行扫描,获得各加速段的能量增益公式;定量调节速调管的输出相位和高压,实现直线加速器输出束流能量的快速调节。在线应用结果表明,该方案能快速实现束流能量调节,调节后的束流具有良好品质,束流横向能散小于0.22%,注入速率明显改善。To efficiently adjust the output beam energy of the Hefei Light Source II(HLS-II)linac,this studypresents a beam energy adjustment scheme.During the debugging stage,the beam bunch state is observed,and thebeam energy is measured using an energy spectrum analysis system.In the storage ring injection stage,three BeamPosition Monitors(BPMs)are employed for online beam energy measurement.An automatic phase scanning programis utilized to scan the output phase of the klystrons,deriving the energy gain formula for each acceleration section.Byquantitatively adjusting the output phase and high voltage of the klystrons,rapid adjustment of the output beam energyof the linac is achieved.The online application results demonstrate that the proposed scheme can swiftly adjust thebeam energy,with the adjusted beam exhibiting excellent quality and a transverse energy spread of less than 0.22%.Furthermore,the implementation of this scheme significantly improves the injection rate.

关 键 词：直线加速器 能谱分析系统 束流位置探测器 自动相位扫描 能量调节 

分 类 号：TL503.6[核科学技术—核技术及应用]