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| MOP037 |
Tune Feedback at the Canadian Light Source |
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- W.A. Wurtz, C.K. Baribeau, A.M. Duffy
CLS, Saskatoon, Saskatchewan, Canada
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In order to maintain good injection efficiency for top-up operation at the Canadian Light Source, we must keep the betatron tunes constant even as changes in insertion device fields cause the tunes to vary. To meet this requirement, we implemented a tune feedback system. We measure the tunes at a rate of 1 Hz using Dimtel bunch-by-bunch systems. The transverse feedback function of the bunch-by-bunch systems provides tune measurements without disturbing the electron beam. We adjust two quadrupole families at a rate of 0.25 Hz to control the horizontal and vertical tunes. In this article we describe the tune feedback system, its development and its performance. The system has proven to be very robust, enabling reliable top-up operation.
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Poster MOP037 [1.284 MB]
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| DOI • |
reference for this paper
※ doi:10.18429/JACoW-IBIC2023-MOP037
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| About • |
Received ※ 24 August 2023 — Revised ※ 07 September 2023 — Accepted ※ 14 September 2023 — Issue date ※ 21 September 2023 |
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