Electromagnetic and thermal analysis research of high-order-mode coupler for 1.3 GHz 9-cell high performance superconducting cavity

Wang Zihan; Pan Weimin; Mi Zhenghui; Zhai Jiyuan; He Feisi; Sha Peng; Wang Guangwei; Liu Ming

doi:10.11884/HPLPB202436.230425

Volume 36 Issue 7

May 2024

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Article Navigation > High Power Laser and Particle Beams > 2024 > 36(7): 074002

Wang Zihan, Pan Weimin, Mi Zhenghui, et al. Electromagnetic and thermal analysis research of high-order-mode coupler for 1.3 GHz 9-cell high performance superconducting cavity[J]. High Power Laser and Particle Beams, 2024, 36: 074002. doi: 10.11884/HPLPB202436.230425

Citation:

Wang Zihan, Pan Weimin, Mi Zhenghui, et al. Electromagnetic and thermal analysis research of high-order-mode coupler for 1.3 GHz 9-cell high performance superconducting cavity[J]. High Power Laser and Particle Beams, 2024, 36: 074002. doi: 10.11884/HPLPB202436.230425

Citation:

Wang Zihan, Pan Weimin, Mi Zhenghui, et al. Electromagnetic and thermal analysis research of high-order-mode coupler for 1.3 GHz 9-cell high performance superconducting cavity[J]. High Power Laser and Particle Beams, 2024, 36: 074002. doi: 10.11884/HPLPB202436.230425

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Electromagnetic and thermal analysis research of high-order-mode coupler for 1.3 GHz 9-cell high performance superconducting cavity

doi: 10.11884/HPLPB202436.230425

Wang Zihan^{1, 2, 3
,},
Pan Weimin^{1, 2, 3},
Mi Zhenghui^{1, 2, 3
,
,},
Zhai Jiyuan^{1, 2, 3},
He Feisi^{1, 2, 3},
Sha Peng^{1, 2, 3},
Wang Guangwei^{1, 2},
Liu Ming^{1, 2, 3}

1.
Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China
2.
Key Laboratory of Particle Accelerator Physics and Technology, Chinese Academy of Sciences, Beijing 100049, China
3.
University of Chinese Academy of Sciences, Beijing 100049, China

Received Date: 2023-12-01
Accepted Date: 2024-03-05
Rev Recd Date: 2024-03-05

Available Online: 2024-04-15

Publish Date: 2024-05-31

Abstract

Abstract

The Institute of High Energy Physics of the Chinese Academy of Sciences completed the research and development of the high quality factor 1.3 GHz superconducting cryomodule in June 2023, taking the lead in the world to realize the technical route of the medium temperature baking. Eight 1.3 GHz 9-cell superconducting cavities with the medium temperature baking process are integrated. During the integration test of the cryomodule, the temperature of the high-order mode (HOM) coupler of the superconducting cavity was abnormal, which made the superconducting cavity unable to work stably under high gradient. In this paper, the electromagnetic analysis of the high-order-mode coupler is carried out by the HFSS software and eigenmode Solver in CST software and the thermal analysis of the high-order-mode coupler is carried out by theory and Ansys Workbench software. Combining with the high-power experiment of cavity, the cause of the abnormal performance of the superconducting cavity was found. Also, the cooling structure of the HOM coupler in the superconducting cavity was further optimized to solve the instability of the superconducting cavity under high gradient in the module.
- 1.3GHz 9-cell superconducting cavity,
- high-order mode coupler,
- electromagnetic analysis,
- steady-state thermal analysis

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References(12)

References

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