| Paper |
Title |
Page |
| TUYAT0104 |
CEPC Booster Lattice Design |
61 |
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- D. Wang, X. Cui, J. Gao, D. Ji, M. Li, Y.D. Liu, C. Meng, Y.M. Peng, C.H. Yu, J.Y. Zhai, Y. Zhang
IHEP, Beijing, People’s Republic of China
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The CEPC booster provides electron and positron beams to the collider at different energies. The newest booster design is consistent with the TDR higher luminosity goals for four energy modes. The emittance of booster is reduced significantly in order to match the lower emittance of collider in TDR. Both FODO structure and TME structure was studied for booster design. A lot of efforts are made to overcome the difficulty of error sensitivity for the booster and hence the dynamic aperture with errors can fulfill the requirements at all energy modes. Also, the combined magnets scheme (B+S) are proposed to minimize the cost for magnets and power supplies. The design status of CEPC booster in TDR including parameters, optics and dynamic aperture is discussed in this paper.
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Slides TUYAT0104 [10.620 MB]
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| DOI • |
reference for this paper
※ doi:10.18429/JACoW-eeFACT2022-TUYAT0104
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| About • |
Received ※ 03 November 2022 — Revised ※ 02 February 2023 — Accepted ※ 08 February 2023 — Issue date ※ 17 February 2023 |
| Cite • |
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| WEYAT0101 |
Collective Effects Studies for CEPC |
141 |
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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 |
| Cite • |
reference for this paper using
※ BibTeX,
※ LaTeX,
※ Text/Word,
※ RIS,
※ EndNote (xml)
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