17–22 May 2026
C.I.D
Europe/Zurich timezone

Coupled-bunch instability study for UTEF storage ring

TUP2618
19 May 2026, 16:00
2h
C.I.D

C.I.D

Deauville, France
Poster Presentation MC2.A05: Synchrotron Radiation Facilities Poster session

Speaker

Jincheng Xiao (University of Science and Technology of China)

Description

The Ultra-fast Transient Experimental Facility (UTEF) at Chongqing University is currently constructing a 500MeV storage ring. This paper investigates the transverse coupled-bunch instabilities (TCBI) critical to its high-current operation. Building on a method previously developed at Diamond Light Source—which enables the calculation of all coupled-bunch instability modes within a single simulation—this work extends the approach to non-zero chromaticity cases using a multi-particle-per-bunch model. Results for the UTEF ring demonstrate that non-zero chromaticity and synchrotron radiation damping have a negligible impact on the grow-damp curve. On the other hand, the inclusion of short-range impedance brings an obvious shift of the grow-damp curve. This paper provides a detailed account of the simulation and results.

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Author

Mr 俞龙 陈 (Chongqing University)

Co-authors

Bocheng Jiang (Chongqing University) Jincheng Xiao (University of Science and Technology of China) Siwei Wang (Chongqing University) Yao Zhang (Chongqing University)

Presentation materials

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