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Description
In high-current electron storage rings, tuning the radio-frequency (RF) cavity’s proportional-integral (PI) controller is crucial for beam stability. Traditional online trial-and-error methods risk beam loss due to improper parameter settings. This paper proposes a pre-commissioning method based on particle-tracking simulations that self-consistently model the coupled beam-cavity-feedback dynamics. The method delineates a theoretically stable operating region for the PI controller, providing reliable guidance for initial online settings. Applied to the Super Tau-Charm Facility (STCF) parameters, it successfully identifies stable operating ranges for the feedback parameters. This simulation-based approach not only promises to guide design and commissioning but also substantially mitigates the risk of beam loss during operation.
| In which format do you inted to submit your paper? | LaTeX |
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