Influences of harmonic cavities on single-bunch instabilities in electron storage rings

作     者：Hai-Sheng Xu Jing-Ye Xu Na Wang Hai-Sheng Xu;Jing-Ye Xu;Na Wang

作者机构：Key Laboratory of Particle Acceleration Physics and TechnologyInstitute of High Energy PhysicsChinese Academy of SciencesBeijing 100049China University of the Chinese Academy of SciencesBeijing 100049China 

出 版 物：《Nuclear Science and Techniques》 (核技术（英文）)

年 卷 期：2021年第32卷第9期

页      面：1-8页

核心收录：

学科分类：08[工学] 082701[工学-核能科学与工程] 0827[工学-核科学与技术] 

基　　金：supported by the National Natural Science Foundation of China(Nos.11805217 and 11775239) the Youth Innovation Promotion Association CAS,and NKPSTRD(No.2016YFA0402001) 

主　　题：Harmonic cavity Microwave instability Transverse Mode-coupling instability 

摘      要：Harmonic cavities(HCs)are widely used in electron storage rings,mainly to increase the Touschek lifetime by lengthening *** have become critical components of almost all fourth-generation synchrotron light *** addition to the benefits of increasing the Touschek lifetime,they also affect the collective beam instabilities in electron storage ***,the influ-ence of HC settings on collective beam instabilities is still not well *** are typically designed to operate under so-called ideal lengthening conditions,which do not necessarily optimize the suppression of collective beam *** therefore extended earlier studies of col-lective beam instabilities to consider more general HC *** present preliminary studies and analyses of the influences of different HC settings on microwave and transverse mode-coupling instabilities.