Tracking code simulation for passive harmonic cavity in the SSRF storage ring
作者机构：Shanghai Institute of Applied PhysicsChinese Academy of SciencesZhangjiang campusShanghai 201800China University of Chinese Academy of SciencesBeijing 100049China ShanghaiTech UniversityShanghai 201210China
出 版 物：《Radiation Detection Technology and Methods》 (辐射探测技术与方法（英文）)
年 卷 期：2018年第2卷第1期
页 面：57-64页
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：The work is supported by the National Key Research and Development Program of China(2016YFA0402001)
主 题：SSRF storage ring Transient beam loading
摘 要：Background A passive third harmonic cavity is planned to install in the Shanghai Synchrotron Radiation Facility(SSRF)storage ring to increase the beam *** beam loading effect generated by the gap between the bunch trains can suppress the bunch lengthening effect of the third harmonic ***,the field excited in the passive operation of the harmonic cavity depends on the bunch *** To estimate the effect of transient beam loading,the tracking codes have been *** The tracking simulation has been performed for three uniform filling cases and a nonuniform filling *** lengthened bunch distribution has also been included into tracking code *** effect of the lengthened bunch has also been *** The uniform filling pattern with shorter bunch trains shows lower transient beam loading effect and can give much higher bunch lengthening factors compared to those of non-uniform filling *** effect caused by the reduction of the harmonic voltage generated by lengthened bunch distribution causes a great reduction on bunch lengthening effect in uniform filling case,while the lengthening factor of non-uniform filling case does not affect much in this *** The tracking codes have been developed to estimate the effect of transient beam loading for three uniform filling cases and a non-uniform filling *** larger gap in the filling pattern can cause the higher transient beam loading effect and lower bunch lengthening *** lengthened bunch distribution has also been included into tracking code *** effect of the lengthened bunch has also been *** more the bunch is lengthened,the greater reduction on bunch lengthening effect.
维普期刊数据库