IPAC'25 - the 16th International Particle Accelerator Conference

Analysis of low-frequency disturbances (~0.3 Hz) in TPS and TLS beam orbit feedback systems

TUPB059

3 Jun 2025, 16:00

2h

Exhibiton Hall A _Bear (TWTC)

Poster Presentation MC8.U09 Other Applications Tuesday Poster Session

Speaker

Yi-Tang Hsieh (National Synchrotron Radiation Research Center)

Description

The stability of electron beams in storage rings is vital for precise synchrotron radiation experiments. However, external vibrations, such as earthquakes, ocean waves, and human activities, often disrupt beam stability. This study analyzed low-frequency(~0.3Hz) disturbances in the beam orbit systems of the Taiwan Photon Source (TPS) and Taiwan Light Source (TLS). Using Fast Fourier Transform (FFT) and Dynamic Time Warping (DTW), we identified a strong correlation between these disturbances and ocean wave frequencies, with a similarity score of 0.12. Our findings confirm ocean waves as a major disturbance source and emphasize the need for advanced orbit control and vibration compensation to enhance beam stability.