A vibration control method for linear accelerator

THP09
18 Sept 2025, 16:40
1h
The Loop

The Loop

Lund, Sweden
Poster Presentation Stability Issues Thursday Poster Session

Speaker

Zhidi Lei (Shanghai Advanced Research Institute, Chinese Academy of Sciences)

Description

The beam orbit or effective emittance is correlated with the mechanical vibrations of quadrupole magnets. To mitigate the impact of vibrations on beam orbit stability, active vibration isolation platforms can be employed to enhance the stability of magnets and other components. This paper presents an active vibration isolation system based on the inverse piezoelectric effect, combined with a feedforward control algorithm to improve the positional stability of the magnets. This vibration isolation system has been deployed in batches in the SHINE project. Test results demonstrate that the active vibration isolation system achieves over 50% displacement attenuation, facilitating beam tuning and indicating that this control strategy holds significant potential for broader application in linear accelerator construction.

Funding Agency

Work supported by the CAS Project for Young Scientists in Basic Re-search (YSBR-042), the National Natural Science Foundation of China (12125508, 11935020),Program of Shanghai Academic/Technology Rese

Author

Zhidi Lei (Shanghai Advanced Research Institute, Chinese Academy of Sciences)

Co-authors

Fei Gao (Shanghai Synchrotron Radiation Facility) Haixiao Deng (Shanghai Institute of Applied Physics) Lixin Yin (Shanghai Advanced Research Institute) Rongbing Deng (Shanghai Advanced Research Institute, Chinese Academy of Sciences) Yiyong Liu (Shanghai Advanced Research Institute, Chinese Academy of Sciences) Zhiqiang Jiang (Shanghai Advanced Research Institute, Chinese Academy of Sciences) tingting Zhen (Shanghai Advanced Research Institute, Chinese Academy of Sciences)

Presentation materials

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