Speaker
Description
The Taiwan Photon Source (TPS) booster synchrotron has been in routine operation since 2015, accelerating electron beams from 150 MeV to 3 GeV at a 3 Hz repetition rate. Ensuring beam stability during the energy ramp is essential, particularly through tune correction to mitigate particle loss associated with betatron resonances. Tune variations primarily arise from magnetic field imperfections, space-charge effects, and injection-related errors. Effective tune control is therefore required to maintain the beam on its intended trajectory and to achieve high acceleration efficiency. To support this objective, a bunch-by-bunch feedback processor has been adapted as a diagnostic toolkit capable of measuring and tracking the booster tune throughout the energy ramp, enabling real-time correction. The system acquires waveform data using configurable multi-bunch or single-bunch triggers, and advanced signal-processing techniques are applied to suppress background noise for improved spectral clarity. Ultimately, the developed system aims to perform tune compensation to reduce tune fluctuations and enhance injection efficiency. This report summarizes the development and performance evaluation of the proposed efforts.
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