Robinson instabilities with a higher-harmonic cavity
Robinson instabilities with a higher-harmonic cavity
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DOI：
10.1103/physrevstab.4.074401
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发表时间：
2001-07
影响因子：
--
通讯作者：
R. Bosch;K. Kleman;J. Bisognano
中科院分区：
文献类型：
--
作者：
R. Bosch;K. Kleman;J. Bisognano
具有四次谐波“朗道”腔的射频系统抑制了耦合束团不稳定性，延长了阿拉丁电子储存环的束流寿命。当储存环以小的动量紧凑操作时，不稳定性限制了朗道腔的应用。不稳定性频率和增长率的分析模型、模拟和实验表明，观测到的不稳定性是偶极和四极Robinson模之间耦合的结果。
A radio frequency system with a fourth-harmonic “Landau” 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. Analytical modeling of instability frequencies and growth rates, simulations, and experiments suggest that the observed instabilities result from coupling between dipole and quadrupole Robinson modes.