Influence of the Momentum Compaction upon Landau Cavity Stability*
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چکیده
A fourth-harmonic Landau radiofrequency (RF) cavity suppresses coupled bunch instabilities and increases the beam lifetime of the Aladdin electron storage ring. When the storage ring is operated with a small momentum compaction, instabilities limit the utility of the Landau cavity. Analytic modeling and simulations suggest that instabilities result from fast mode-coupling between the dipole and quadrupole Robinson modes.
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تاریخ انتشار 2001