Fast beam-ion instability driven longitudinal damping

Fast beam-ion instability driven longitudinal damping

In the Pohang Light Source storage ring, we empty 68 buckets of total 468 buckets to cure the conventional ion trapping. However, the fast beam-ion instability is occasionally generated at higher beam current. Immediately after the strong vertical beam shaking due to the fast beam-ion instability, t...

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Bibliographische Detailangaben
Hauptverfasser: Yujong Kim, Kim, C., Kim, K.H., Park, C.D., Chun, M.H., Yang, J.S., Yu, I.H., Kwon, M., Huang, J.Y., Nam, S.H., Cho, M.H., Namkung, W., Ko, I.S.
Format: Tagungsbericht
Sprache:eng
Schlagworte:
Cameras
Damping
Electron beams
Electron traps
Feedback
Light sources
Optical coupling
Radio frequency
Storage rings
Synchrotrons
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Beschreibung
Zusammenfassung:In the Pohang Light Source storage ring, we empty 68 buckets of total 468 buckets to cure the conventional ion trapping. However, the fast beam-ion instability is occasionally generated at higher beam current. Immediately after the strong vertical beam shaking due to the fast beam-ion instability, the longitudinal coupled bunch mode instabilities are substantially damped down without any active feedback system. We have described the fast beam-ion instability driven longitudinal damping and its mechanism in the Pohang Light Source storage ring.
DOI:10.1109/PAC.2001.987239