Electron bunch train excited higher-order modes in a superconducting RF cavity

• 来源期刊: 中国物理C（英文版）
• 年，卷（期）: 2017,（4）
• 页码范围: 164-168
• 页数: 5页
• 语种: 英文
• DOI: 10.1088/1674-1137/41/4/047002

摘要

Higher-order mode (HOM) based intra-cavity beam diagnostics has been proved effective and convenient in superconducting radio-frequency (SRF) accelerators.Our recent research shows that the beam harmonics in the bunch train excited HOM spectrum,which have much higher signal-to-noise ratio than the intrinsic HOM peaks,may also be useful for beam diagnostics.In this paper,we will present our study on bunch train excited HOMs,including a theoretical model and recent experiments carried out based on the DC-SRF photoinjector and SRF linac at Peking University.