IPAC'25 - the 16th International Particle Accelerator Conferece

Development of a global tune geedback system for beam stability at the Taiwan Light Source

TUPB107

3 Jun 2025, 16:00

2h

Exhibiton Hall A _Bear (TWTC)

Poster Presentation MC8.U02 Materials Analysis and Modification Tuesday Poster Session

Speaker

Szu-Jung Huang (National Synchrotron Radiation Research Center)

Description

This paper introduces the development of a global tune feedback system at the Taiwan Light Source (TLS) to address tune variations resulting from changes in the gap and phase of insertion devices. The system utilizes two families of quadrupole magnets to sustain betatron tunes at their desired working points. Adjustment currents, essential for feedback control, are computed using a tune response matrix derived from the lattice model and processed through the singular value decomposition (SVD) algorithm. Real-time tune shift data, provided by a bunch-by-bunch feedback system, enables precise and efficient compensation. This integrated approach ensures robust beam stability and optimal performance under varying operational conditions.