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Proceedings Paper

Model of cavity coupling for beam breakup control
Author(s): Denis G. Colombant; Yue Ying Lau
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Paper Abstract

The coupling of the accelerating cavities to dummy cavities was recently found to reduce beam breakup growth. This paper analyzes a more sophisticated model, proposed by George Caporaso, that includes the time delay between coupled cavities and covers the possibilities of wave cutoff and resonance in the coupling path. A dispersion relation is obtained. We show that the peak spatial exponentiation rate of the dominant BBU mode is reduced by as much as a factor of two, and this reduction is insensitive to the coupling path length. Other modes are destabilized, however, but they have lower growth rates, in general.

Paper Details

Date Published: 1 April 1992
PDF: 8 pages
Proc. SPIE 1629, Intense Microwave and Particle Beams III, (1 April 1992); doi: 10.1117/12.137155
Show Author Affiliations
Denis G. Colombant, Naval Research Lab. (United States)
Yue Ying Lau, Naval Research Lab. (United States)

Published in SPIE Proceedings Vol. 1629:
Intense Microwave and Particle Beams III
Howard E. Brandt, Editor(s)

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