Studies on high order mode of bell-shaped prototype cavities  

作　　者：马广明 赵振堂 

机构地区：[1]Shanghai Synchrotron Radiation Facility, Shanghai Institute of Applied Physics, CAS [2]Graduate University of Chinese Academy of Sciences

出　　处：《Chinese Physics C》2008年第12期1012-1015,共4页中国物理C（英文版）

基　　金：Supported by Science and Technology Commission of Shanghai Municipality (026505027, 036505011)

摘　　要：Aluminium and copper prototype cavities were designed to study higher order modes （HOM）. An automatic field mapping system was developed with LabVIEW to measure the radiofrequency （RF） characteristics, such as resonant frequency, Q-value, shunt impedance and electromagnetic field distribution of the higher-order modes in a model RF cavity. Two kinds of the bell-shaped cavities were measured using the field mapping system, their frequencies are 1.5 GHz and 800 MHz respectively. The fields＇ distributions of the monopole modes and dipole modes, as well the R/Q values, were measured.Aluminium and copper prototype cavities were designed to study higher order modes （HOM）. An automatic field mapping system was developed with LabVIEW to measure the radiofrequency （RF） characteristics, such as resonant frequency, Q-value, shunt impedance and electromagnetic field distribution of the higher-order modes in a model RF cavity. Two kinds of the bell-shaped cavities were measured using the field mapping system, their frequencies are 1.5 GHz and 800 MHz respectively. The fields＇ distributions of the monopole modes and dipole modes, as well the R/Q values, were measured.

关 键 词：perturbation method higher order modes LABVIEW superconducting RF 

分 类 号：TL503[核科学技术—核技术及应用]