Measuring the performance of the coaxial HOM coupler on a 2-cell TESLA-shape copper cavity
Coaxial High Order Mode (HOM) couplers have been fabricated at Peking University and their RF performance has been measured on a test device consisting of a coaxial transmission line and a 2-cellTESLA-shape copper cavity. The test results on the 2-cell TESLA-shape copper cavity with HOM couplers indicate that the coupler can cut off the fundamental mode TM010 and absorb HOMs effectively after a careful adjustment. The optimal angle of the HOM coupler with the beam tube is found. The initial test results of HOM couplers are presented in this paper.
作 者： WANG Fang WANG Er-Dong ZHANG Bao-Cheng ZHAO Kui 作者单位： Institute of Heavy Ion Physica, Peking University, Beijing 100871, China 刊 名： 中国物理C（英文版） ISTIC 英文刊名： CHINESE PHYSICS C 年，卷(期)： 2009 33(6) 分类号： O4 关键词： coaxial HOM coupler 2-cell copper cavity HOM