1. Design study and test of input coupler for 500 MHz five-cell cavity.
- Author
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Lu, Zhijun, Li, Xiao, Zhu, Junyu, Zhang, Chunlin, Liu, Yang, Long, Wei, Chen, Shengyi, and Liu, Shenghua
- Subjects
TEST design ,EXPERIMENTAL design ,COOLING systems ,LOW temperatures - Abstract
This paper presents an optimized design and preliminary test result of a high-power input coupler. The design is motivated by five-cell Petra-type cavities operating in the Southern Advanced Photon Sources booster. We optimize the design of the high-power input coupler from the prototype, including the window geometry redesign and multipacting analysis to meet a 250 kW operation power upgrade plan. The cooling system of the coupler is redesigned to achieve a low temperature in high-power operation. Design results fulfill the five-cell cavity operation requirement. The corresponding waveguide and coaxial transition structures are developed and tested. We also describe the coupler's coupling coefficient tests and high-power test plans. [ABSTRACT FROM AUTHOR]
- Published
- 2022
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