Longitudinal bunch-by-bunch feedback systems in storage rings: Phase vs. energy sensing
Bunch-by-bunch feedback (FB) systems are widely employed in charged-particle storage rings to suppress beam instabilities. In the longitudinal plane, the correction applied by a conventional FB system to the beam motion is an energy kick based on the signal originating from a time-of-arrival pick-up...
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Published in | Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment Vol. 1069; no. C; p. 169929 |
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Main Author | |
Format | Journal Article |
Language | English |
Published |
Netherlands
Elsevier B.V
01.12.2024
Elsevier |
Subjects | |
Online Access | Get full text |
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Summary: | Bunch-by-bunch feedback (FB) systems are widely employed in charged-particle storage rings to suppress beam instabilities. In the longitudinal plane, the correction applied by a conventional FB system to the beam motion is an energy kick based on the signal originating from a time-of-arrival pick-up device (phase sensing). In this Note, we make a comparison with an alternate approach where the pick-up signal originates from the detection of the energy error. We show that for equal FB gain and input-impulse length the achievable damping rates in the two cases are essentially the same. |
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Bibliography: | USDOE DEAC02-05CH11231 |
ISSN: | 0168-9002 |
DOI: | 10.1016/j.nima.2024.169929 |