Measuring the performance of the coaxial HOM coupler on a 2-cell TESLA-shape copper cavity  

作　　者：王芳 王尔东 张保澄 赵夔 

机构地区：[1]Institute of Heavy Ion Physics,Peking University

出　　处：《Chinese Physics C》2009年第6期440-443,共4页中国物理C（英文版）

基　　金：Supported by National Natural Science Foundation of China (10276001)

摘　　要：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-cell TESLA-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.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-cell TESLA-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.

关 键 词：coaxial HOM coupler 2-cell copper cavity HOM 

分 类 号：TL503[核科学技术—核技术及应用]