Machine Learning based Optical Distortion measurement by Phase Advance in SSRF

Not scheduled
20m
80/1-001 - Globe of Science and Innovation - 1st Floor (CERN)

80/1-001 - Globe of Science and Innovation - 1st Floor

CERN

Esplanade des Particules 1, 1211 Meyrin, Switzerland
60
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Poster Optimisation and Control Poster session

Speaker

liu xinzhong

Description

Optical distortion measurement and correction are pivotal for the stable operation of accelerators. This study introduces a machine learning-based approach to optical distortion measurement and correction implemented on the Shanghai Synchrotron Radiation Facility (SSRF). We trained models from modulated orbits to phase advance and from phase advance to quadrupole models, establishing a data-driven method for optical distortion correction. A key advantage of this method is the elimination of the need to update the Jacobian matrix, thereby reducing computational iteration time. Our machine learning-driven optical distortion correction method completes the process in 2 minutes, significantly faster than traditional Local Closed Orbit Correction (LOCO) methods. Furthermore, our method, based on steady-state orbit data measurement with orbit modulation, achieves higher accuracy and requires lower measurement conditions compared to turn by turn (TBT) data measurement-based optical distortion correction. This research underscores the potential of machine learning in the field of accelerator optical distortion correction and introduces an efficient strategy for future accelerator operations.

Author

Co-authors

Liyuan Tan Yihao GONG (Shanghai Advanced Research Institute)

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