Keyword: beam-loading
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THPB037 Cavity Fundamental Mode and Beam Interaction in CEPC Main Ring ion, cavity, ECR, luminosity 825
 
  • D.J. Gong, J. Gao, D. Wang, J.Y. Zhai
    IHEP, Beijing, People's Republic of China
 
  Circular electron positron collider (CEPC) is design as a particle factory for Higgs, W and Z. The preliminary study is undertaken for CEPC cavity fundamental mode and beam interaction in this paper. The baseline of CEPC is DR scheme, the alternative is the APDR scheme. Beam loading effects and the corresponding longitudinal beam dynamics of both CEPC DR and APDR are elaborated in this article. The phase shift and voltage decrease are calculated by the analytic formula and the program. Furthermore, the longitudinal coupled-bunch instability is also studied. At last, the RF parameters are calculated for CEPC 100km APDR, in order to match the machine parameters and relieve the beam loading effects.  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-SRF2017-THPB037  
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