Chinese Physics C > 2017, Vol. 41 > Issue(4): 047002 DOI: 10.1088/1674-1137/41/4/047002

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

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Abstract：
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.
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References

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null. Electron bunch train excited higher-order modes in a superconducting RF cavity[J]. Chinese Physics C, 2017, 41(4): 047002. doi: 10.1088/1674-1137/41/4/047002

null. Electron bunch train excited higher-order modes in a superconducting RF cavity[J]. Chinese Physics C, 2017, 41(4): 047002. doi:10.1088/1674-1137/41/4/047002 shu

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Received: 2016-08-12

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沈阳化工大学材料科学与工程学院沈阳 110142

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

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Received Date:2016-08-12
Available Online:2017-04-05

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Abstract: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.