HOM coupler design for 166.6 MHz SC cavity
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Abstract
PurposeHigher-order modes (HOMs) may affect beam stability and refrigeration requirements of superconducting cavity such as the 166.6 MHz SC cavity, which is studied at IHEP. Under certain conditions, beam-induced HOMs can accumulate sufficient energy to destabilize the beam or quench the superconducting cavities.
MethodsIn order to limit these effects, we consider the use of the HOM coupler with HOMs extraction on the cutoff tubes of the 166.6 MHz SC cavity.
ResultsThe HOM coupler can deeply suppress the fundamental mode and efficiently extract dangerous high-order modes.
ConclusionsIn this paper, the HOM coupler design process is presented, which operates at 166.6 MHz. The RF and thermal behavior are discussed. In order to verify the designs, a rapid prototype for the favored coupler was fabricated and characterized on a low-power test stand.
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Xuerui Hao, Zhongquan Li, Pei Zhang, et al. HOM coupler design for 166.6 MHz SC cavity[J]. Radiation Detection Technology and Methods, 2019, 3(3): 31-31. DOI: 10.1007/s41605-019-0111-5
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Citation:
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Xuerui Hao, Zhongquan Li, Pei Zhang, et al. HOM coupler design for 166.6 MHz SC cavity[J]. Radiation Detection Technology and Methods, 2019, 3(3): 31-31. DOI: 10.1007/s41605-019-0111-5
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Xuerui Hao, Zhongquan Li, Pei Zhang, et al. HOM coupler design for 166.6 MHz SC cavity[J]. Radiation Detection Technology and Methods, 2019, 3(3): 31-31. DOI: 10.1007/s41605-019-0111-5
|
Citation:
|
Xuerui Hao, Zhongquan Li, Pei Zhang, et al. HOM coupler design for 166.6 MHz SC cavity[J]. Radiation Detection Technology and Methods, 2019, 3(3): 31-31. DOI: 10.1007/s41605-019-0111-5
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