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Content Provider | IEEE Xplore Digital Library |
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Author | Towne, N. |
Copyright Year | 1999 |
Description | Author affiliation: Nat. Synchrotron Light Source, Brookhaven Nat. Lab., Upton, NY, USA (Towne, N.) |
Abstract | For bunches stretched with a higher-harmonic cavity, longitudinal bunch shapes are influenced by small variations in the potential wells of the buckets of the bunch train. This paper discusses three things that perturb the bunch shapes in the NSLS VUV ring: the -90/spl deg/ (non-optimal) phase of the harmonic cavity maintained by the RF controls [1], higher-order modes (HOM) of the main cavity, and the effect of unfilled buckets on the RF fields in the accelerating modes of the two cavities. The suppression of the lowest-lying HOM in an experiment using RF feedback applied to two HOM damping-probe ports is described and results of calculations of the effect of unfilled buckets are given. Measured bunch shapes are shown and discussed. |
Starting Page | 2828 |
Ending Page | 2830 |
File Size | 215593 |
Page Count | 3 |
File Format | |
ISBN | 0780355733 |
DOI | 10.1109/PAC.1999.792952 |
Language | English |
Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
Publisher Date | 1999-03-27 |
Publisher Place | USA |
Access Restriction | Subscribed |
Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
Subject Keyword | Radio frequency Potential well Voltage Feedback Shape measurement Synchrotrons Light sources Laboratories Acceleration Damping |
Content Type | Text |
Resource Type | Article |
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