Beam coupling impedance measurements of the DAPhiNE vacuum chamber components

Beam coupling impedance measurements of the DAPhiNE vacuum chamber components
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DAPhiNE 真空室组件的光束耦合阻抗测量

DOI：
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发表时间：
1999
期刊：
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影响因子：
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通讯作者：
M. Zobov
M. Zobov
中科院分区：
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文献类型：
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作者：
F. Marcellini;D. Alesini;R. Boni;A. Gallo;A. Ghigo;M. Serio;M. Zobov

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在大电流储存环（如DAΦNE）中，多束团的运行受到共振电子显微镜驱动的耦合束团振荡的严重限制。被困在真空室沿着某处的磁场。每个真空室部件的设计旨在保持束耦合阻抗低于多聚束不稳定性可以由反馈系统控制的值。一些最关键的设备的阻抗已被测量和所获得的结果的摘要。
Multibunch operation in high current storage rings like DAΦNE can be seriously limited by coupled bunch oscillations driven by resonant e.m. fields trapped somewhere along the vacuum chamber. The design of each vacuum chamber component aims to keep the beam coupling impedance below the values for which multibunch instabilities can be controlled by feedback systems. The impedance of some of the most critical devices has been measured and a summary of the obtained results is presented.