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| WEYAT0101 |
Collective Effects Studies for CEPC |
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- N. Wang, C.T. Lin, Y.D. Liu, S.K. Tian, H.S. Xu, Y. Zhang
IHEP, Beijing, People’s Republic of China
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The impedance model of the CEPC storage ring is updated according to the development of the vacuum components based on the circular beam pipe. With the impedance model, the single bunch and coupled bunch instabilities for different operation scenarios are investigated. Particularly, the key instability issues driven by the beam coupling impedance in the Z operation mode are discussed. The influence of the longitudinal impedance on the transverse mode coupling instability is analyzed both numerically and analytically. In addition, trapped ions can induce bunch centroid oscillation and emittance growth. The possibility of ion trapping and fast beam ion instability in the CEPC storage ring are also investigated.
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Slides WEYAT0101 [2.856 MB]
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| DOI • |
reference for this paper
※ doi:10.18429/JACoW-eeFACT2022-WEYAT0101
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| About • |
Received ※ 30 November 2022 — Revised ※ 03 February 2023 — Accepted ※ 08 February 2023 — Issue date ※ 09 February 2023 |
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