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

Longitudinal single-bunch instability driven by coherent undulator radiation in the laser modulator of a SSMB storage ring based on cavity mode decomposition

THP5654
21 May 2026, 16:00
2h
C.I.D

C.I.D

Deauville, France
Poster Presentation MC5.D05: Coherent and Incoherent Instabilities Theory, Simulations, Code Development Poster session

Speaker

Yingjie Dai (Tsinghua University)

Description

Storage ring based on steady-state microbunching (SSMB) is a promis-
ing approach for generating high average power coherent radiation, while
the instabilities driven by coherent undulator radiation in the SSMB laser
modulator (LM) is important for the ring performance. In this paper
we investigate the longitudinal single-bunch multi-turn instabilities using
cavity mode decomposition techniques. The longitudinal beam dynamics
equations including the coherent undulator radiation field are derived, and
the instability growth rates are analyzed. Key parameters affecting the
instabilities are explored, and simulation results are presented to validate
the theoretical models. The findings shall provide insights into the design
and operation of SSMB storage rings to mitigate the adverse effects of
these instabilities.

In which format do you inted to submit your paper? LaTeX

Author

Yingjie Dai (Tsinghua University)

Co-authors

Xiujie Deng (Tsinghua University) Zhuoyuan Liu (Tsinghua University) Tong Li (Tsinghua University) Lixin Yan (Tsinghua University)

Presentation materials

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