Speaker
Haoyu Shen
(Peking University)
Description
Thermal management of high-power input couplers is a critical challenge in conduction-cooled superconducting accelerators. This work presents a low thermal load input coupler design featuring a detachable electromagnetic shield and a variable impedance stub to guide microwave-induced heat toward the 50 K region. RF and thermal simulations confirm its efficient power transmission and reduced heat load at cryogenic temperatures around 4 K. Experimental tests validate the electromagnetic shielding performance. High-power conditioning demonstrates stable 70 kW CW power transmission under ultra-high vacuum, meeting the dual requirements of low thermal load and high RF power handling for conduction-cooled accelerators.
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Author
Haoyu Shen
(Peking University)
Co-authors
Zeqin Yao
(Peking University)
Ms
Xiaoxiao Wang
(Peking University)
Fang Wang
(Peking University)
Jiankui Hao
(Peking University)
Lin Lin
(Peking University)
Mr
Shengwen Quan
(Peking University)
Senlin Huang
(Peking University)
