Design study and test of input coupler for 500 MHz five-cell cavity

被引：2
作者：
Lu, Zhijun [1 ,2 ]
Li, Xiao [1 ,2 ]
Zhu, Junyu [1 ,2 ]
Zhang, Chunlin [1 ,2 ]
Liu, Yang [1 ,2 ]
Long, Wei [1 ,2 ]
Chen, Shengyi [1 ,2 ]
Liu, Shenghua [1 ,2 ]
机构：
[1] Chinese Acad Sci, Inst High Energy Phys, Beijing 100049, Peoples R China
[2] Dongguan Res Dept, Dongguan 523803, Peoples R China
来源：
AIP ADVANCES | 2022年 / 12卷 / 06期
基金：
中国国家自然科学基金;
关键词：
ALUMINA; BREAKDOWN;
D O I：
10.1063/5.0098125
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
This paper presents an optimized design and preliminary test result of a high-power input coupler. The design is motivated by five-cell Petratype 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. (C) 2022 Author(s).
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页数：10
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