Speaker
Description
Precise control of betatron tune is essential for maintaining beam stability in modern synchrotron light sources. At the SOLARIS storage ring, tune perturbations induced by undulator gap and phase present a significant operational challenge. This study presents a method for local tune compensation during the gap and phase motion of Apple II type undulator, installed upstream of a dedicated beamline. The approach employs a tune-feedback system based on two local quadrupoles and two global magnet families driven by a feed-forward table generated from a systematic scan of the undulator parameters (gap, phase) and the corresponding tune shifts. Prior to table generation, the magnets' response matrices for both tune planes were independently obtained. The proposed method ensures effective and reproducible mitigation of tune perturbations during undulator motion, enabling stable machine performance and improved beam quality at SOLARIS.
Funding Agency
The work is executed under the provision of the Polish Ministry and Higher Education project under contract nr 1/SOL/2021/2.
| In which format do you inted to submit your paper? | Word |
|---|---|
| Preprint marking on your proceeding paper | I do not intend to submit a paper associated with this contribution. |