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TY - CONF AU - Karpov, I. AU - Baudrenghien, P. ED - Schaa, Volker RW TI - Beam Loading and Longitudinal Stability Evaluation for the FCC-ee Rings J2 - Proc. of HB2018, Daejeon, Korea, 17-22 June 2018 C1 - Daejeon, Korea T2 - ICFA Advanced Beam Dynamics Workshop T3 - 61 LA - english AB - In high-current accelerators, interaction of the beam with fundamental impedance of the accelerating cavities can limit machine performance. It can result in a significant variation of bunch-by-bunch parameters (bunch length, synchronous phase, etc.) and lead to longitudinal coupled-bunch instability. In this work, these limitations are analysed together with possible cures for the high-current option (Z machine) of the future circular electron-positron collider (FCC-ee). The time-domain calculations of steady-state beam loading are presented and compared with frequency-domain analysis. PB - JACoW Publishing CP - Geneva, Switzerland SP - 266 EP - 271 KW - cavity KW - beam-loading KW - feedback KW - impedance KW - synchrotron DA - 2018/07 PY - 2018 SN - 978-3-95450-202-8 DO - 10.18429/JACoW-HB2018-WEP2PO003 UR - http://jacow.org/hb2018/papers/wep2po003.pdf ER -