Model of cavity coupling for beam breakup control
作者:
D. G. Colombant,
Y. Y. Lau,
期刊:
Journal of Applied Physics
(AIP Available online 1992)
卷期:
Volume 72,
issue 9
页码: 3874-3877
ISSN:0021-8979
年代: 1992
DOI:10.1063/1.352263
出版商: AIP
数据来源: AIP
摘要:
The coupling of the accelerating cavities to dummy cavities was recently found to reduce beam breakup growth. This article analyzes a more sophisticated model 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 beam breakup mode is reduced by as much as a factor of 2, and this reduction is insensitive to the coupling path length. Other modes are destabilized, however, but they have lower growth rates, in general.
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