摘要
以上海光源新增的双插入件04IVU波荡器和04Wigger扭摆器为例,介绍了已运行的同步辐射光源新增束线工程中加速器方面需要着重处理的工作。首先,介绍插入件的设计参数及磁测结果,并使用SPECTRA程序计算了其光谱亮度;详细梳理了插入件的安装过程遇到的真空盒工艺误差、安装任务冲突和项目安装超期等问题及其解决方案;阐述了插入件调试工作的物理机制,以及如何应用前馈补偿的方法抑制了插入件调试过程中束流轨道影响,双插入件IVU和Wiggler的最高亮度分别为3 keV时的5.86×10^(19)Photon·s^(−1)·mm^(−2)·mrad^(−2)·(0.1%B.W.)^(−1)和2.75×10^(15)Photon·s^(−1)·(0.1%B.W.)^(−1),校正后IVU和Wiggler最大轨道扰动均小于2μm。对前端区真空清洗工作的意义、方法和结果进行了分析,并系统性地介绍了主被动模式相结合的新方法,该方法实现了高效的真空清洗。归纳了试运行过程中遇到的联锁逻辑错误、前端区真空异常、安全光闸硬联锁等问题,并总结了应对措施,为双插入件更好投入运行提供帮助。通过这些工作的进行,该双插入件已完成安装并基本调试完毕,对其他光源新增线站相关加速器安装与调试具有一定的参考价值。
[Background]The Shanghai Synchrotron Radiation Facility(SSRF)is a user facility that requires continuous addition of new beamlines to meet the needs of an increasing number of users.Adding new insertion devices(IDs)to the synchrotron radiation light source is a complex and critical task.[Purpose]This study aims to highlight the important considerations of dual IDs installation and commissioning when adding new beamlines to synchrotron light sources.[Methods]The newly added dual IDs 04IVU(undulator)and 04Wigger for new beamline added to SSRF were taken as an example,key tasks that need to be addressed in the accelerator aspect of engineering were presented in details.Firstly,the design parameters and magnetic measurement results of the IDs were introduced,and the SPECTRA program was employed to calculate the spectral brightness of dual IDs.Then,problems encountered during the installation process and their solutions were discussed,and an orbit feedforward compensation system equipped with corrector coils for mitigating orbit distortions caused by the IDs was implemented.Finally,the significance,methods,and results of vacuum cleaning work in the front-end area,together with a summary of the issues encountered during the trial operation and corresponding solutions were outlined.[Results]The maximum spectral brightness of 04IVU and 04Wiggler are 5.86×10^(19)Photon·s^(−1)·mm^(−2)·mrad^(−2)·(0.1%B.W.)^(−1)and 2.75×10^(15)Photon·s^(−1)·(0.1%B.W.)^(−1)at photon energy of 3 keV,respectively.After compensation,the distortions of 04IVU and 04Wiggler are reduced to below 2μm.[Conclusion]The dual IDs have been successfully installed and commissioned.This study provides reference value for installation and commissioning of accelerators associated with the new beamline in other synchrotron radiation light sources.
作者
焦广为
田顺强
相升旺
朱亚
刘新忠
吴帅
JIAO Guangwei;TIAN Shunqiang;XIANG Shengwang;ZHU Ya;LIU Xinzhong;WU Shuai(Shanghai Advanced Research Institute,Chinese Academy of Sciences,Shanghai 201204,China;Shanghai Institute of Applied Physics,Chinese Academy of Sciences,Shanghai 201800,China)
出处
《核技术》
EI
CAS
CSCD
北大核心
2024年第3期10-18,共9页
Nuclear Techniques
关键词
同步辐射光源
上海光源
束线工程
插入件
Synchrotron radiation light source
Shanghai Synchrotron Radiation Facility(SSRF)
Beamline project
Insertion devices(IDs)
