Analysis and simulation of the tune ripple effect on beam spill ripple in RF-KO slow extraction

作     者：Wen-Bo Ye Hong-Juan Yao Shu-Xin Zheng Xia-Ling Guan Xue-Wu Wang Wen-Bo Ye;Hong-Juan Yao;Shu-Xin Zheng;Xia-Ling Guan;Xue-Wu Wang

作者机构：Key Laboratory of Particle and Radiation Imaging(Tsinghua University)Ministry of EducationBeijing 100084China Laboratory for Advanced Radiation Sources and ApplicationTsinghua UniversityBeijing 100084China Department of Engineering PhysicsTsinghua UniversityBeijing 100084China 

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

年 卷 期：2022年第33卷第5期

页      面：91-101页

核心收录：

学科分类：08[工学] 0804[工学-仪器科学与技术] 0825[工学-航空宇航科学与技术] 0702[理学-物理学] 

基　　金：supported by the National Natural Science Foundation of China(No.12075131) 

主　　题：RF-knockout slow extraction Synchrotron Tune ripple Power supply ripple Beam spillripple 

摘      要：Tune ripple has a significant influence on beam spill ripple in RF-knockout(RF-KO)slow *** this study,a model was proposed to explain how the tune ripple affects the beam spill in RF-KO slow extraction;consequently,a simulation was performed using the lattice of the Xi’an Proton Application Facility(XiPAF)synchrotron to verify the *** simulation demonstrates that the tune ripple influences the beam spill in two *** the one hand,the tune ripple causes a direct fluctuation in the separatrix area,which induces beam spill *** the other hand,the tune ripple influences the emittance growth rate in RF-knockout slow *** two aspects simultaneously contribute to the beam spill ripple.