振动线测量技术在高能同步辐射光源增强器预准直单元中的应用  

Application of vibration wire measurement technology to pre-alignment unitsof High Energy Photon Source booster

作　　者：闫路平 刘晓阳 王小龙[1,2] 董岚 王铜[1,2] 门玲鸰 卢尚[1] 韩圆颖 张露彦[1] 闫皓月 马娜 何振强 柯志勇 李波 梁静[1,2] Yan Luping;Liu Xiaoyang;Wang Xiaolong;Dong Lan;Wang Tong;Men Lingling;Lu Shang;Han Yuanying;Zhang Luyan;Yan Haoyue;Ma Na;He Zhenqiang;Ke Zhiyong;Li Bo;Liang Jing(Institute of High Energy Physics,Chinese Academy of Sciences,Beijing 100049,China;Dongguan Neutron Science Center,Dongguan 523803,China)

机构地区：[1]中国科学院高能物理研究所,北京100049 [2]散裂中子源科学中心,广东东莞523803

出　　处：《强激光与粒子束》2023年第12期65-73,共9页High Power Laser and Particle Beams

基　　金：国家自然科学基金项目(12075264)。

摘　　要：高能同步辐射光源(HEPS)的预准直单元数量庞大,且磁铁准直精度要求极高,为检验HEPS增强器预准直单元磁铁准直精度,需要在实验厅按照一定比例对其进行振动线磁中心验证测量。基于预研阶段已研发的振动线系统,详细介绍了振动线磁中心测量原理及扫描方法,研究了HEPS增强器两铁单元的磁中心准直精度检测方法并进行了验证实验。设计并搭建了振动线高精度重复定位夹持机构装置,研究了振动线下垂量的修正方法,并对增强器两铁单元的磁中心扫描结果进行拟合分析。实验结果表明,HEPS增强器两铁单元满足磁铁间相对位置误差优于50μm的预准直精度要求。The pre-alignment units of the High Energy Photon Source(HEPS)are numerious and requireextremely high precision in magnet alignment.To verify the magnetic alignment accuracy of the pre-alignment magnetunit in the HEPS booster,vibration wire magnetic center verification measurements need to be carried out in theexperimental hall at a certain ratio.Based on the vibration wire system developed in the pre-research stage,a detailedstudy is conducted to introduce the measurement principle and scanning method of the vibration wire magnetic center.The research focuses on the magnetic center allignment accuracy detection method of the two magnet units in theHEPS booster and conducts verification experiments.A high-precision repeat positioning clamping mechanism for thevibration wire was designed and constructed,and a method for correcting the sag of the vibration wire was studied.The magnetic center scan results of the two magnet units in the booster were analyzed by fitting.The experimentalresults show that the pre-alignment accuracy requirement of the HEPS booster for a relative position error betweenmagnets better than 50μm is satisfied.This study provides a reference for accurate measurement of the vibration wiremagnetic center in other accelerator pre-allignment magnet units.

关 键 词：振动线 定位机构 磁中心测量 下垂量修正 精度分析 

分 类 号：TL505[核科学技术—核技术及应用]