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

A Realistic Proportional-Integral RF Feedback Model for Longitudinal Beam Dynamics Simulation in Electron Storage Rings

THP5648
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

Tianlong He (University of Science and Technology of China)

Description

Modern fourth-generation storage ring light sources predominantly utilize digital I/Q-based proportional-integral (PI) feedback for their radio-frequency (rf) systems. This paper introduces a dedicated PI feedback model implemented in the STABLE tracking code to enable accurate longitudinal beam dynamics simulations. The model's key innovation lies in its treatment of the continuous transmitter current, which is discretized into electron-bunch-like charge pulses, while the cavity voltage is refreshed on an rf-cycle basis. This methodology offers a more physically accurate model of the beam-cavity-feedback coupling, providing a versatile tool for precise longitudinal beam dynamics studies in single- and multi-rf configurations.

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

Author

Tianlong He (University of Science and Technology of China)

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