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

Study of bursting threshold considering bunch length variation around the storage ring

THP5653
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

Jihong Bian (Tsinghua University)

Description

In a storage ring with an extremely small global phase slippage, the bunch length can vary significantly within one turn due to the local phase slippage and transverse-longitudinal coupling, which means the adiabatic approximation usually adopted for longitudinal dynamics breaks down. The impact of such a bunch length variation arising from the local phase slippage on the coherent synchrotron radiation (CSR) induced microwave instability (MWI) threshold has recently been theoretically investigated by us*. In this work, we have extended the study to consider the influence of transverse-longitudinal coupling and presented a general bursting threshold formula. We also report on experimental tests of the theoretical prediction performed at the Metrology Light Source.

Footnotes

  • Bian, J. H., et al. "Threshold studies of coherent synchrotron radiation induced microwave instability beyond adiabatic approximation." Physical Review Accelerators and Beams 28.7 (2025): 074401.
In which format do you inted to submit your paper? Word

Author

Jihong Bian (Tsinghua University)

Co-authors

Xiujie Deng (Tsinghua University) Arne Hoehl (Physikalisch Technische Bundesanstalt Institut Berlin) Wenhui Huang (Tsinghua University) Arnold Kruschinski (Helmholtz-Zentrum Berlin für Materialien und Energie) Carsten Mai (Helmholtz-Zentrum Berlin für Materialien und Energie) Markus Ries (Helmholtz-Zentrum Berlin für Materialien und Energie) Chuanxiang Tang (Tsinghua University)

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