Structural analysis of quarter-wave resonators in IMP  

作　　者：张聪 贺守波 王若旭 张生虎 何源 赵红卫 

机构地区：[1]Institute of Modern Physics,Chinese Academy of Sciences [2]University of Chinese Academy of Sciences

出　　处：《Chinese Physics C》2013年第10期78-82,共5页中国物理C（英文版）

基　　金：National Natural Science Foundation of China (91026001)

摘　　要：The taper-shaped superconducting quarter wave resonators with frequency of 80.5 MHz, β of 0.041 and 0.085 have been pre-researched. The radio frequency （RF） design of the cavities has been completed, and the structural design is also an important aspect which will be discussed in the following. The frequency shift caused by the etching effects of the surface treatment, the helium bath pressure and the Lorentz force, and the mechanical modes caused by the microphonic excitation have been anMyzed. The results show that the frequency variation from the Lorentz force is not serious and stiffening rings are explored aimed at decreasing the deformation brought by the helium pressure and microphonic excitation.The taper-shaped superconducting quarter wave resonators with frequency of 80.5 MHz, β of 0.041 and 0.085 have been pre-researched. The radio frequency （RF） design of the cavities has been completed, and the structural design is also an important aspect which will be discussed in the following. The frequency shift caused by the etching effects of the surface treatment, the helium bath pressure and the Lorentz force, and the mechanical modes caused by the microphonic excitation have been anMyzed. The results show that the frequency variation from the Lorentz force is not serious and stiffening rings are explored aimed at decreasing the deformation brought by the helium pressure and microphonic excitation.

关 键 词：quarter-wave resonator structural stability etching effect Lorentz force detuning helium pressuredetuning mechanical vibration 

分 类 号：TN629.1[电子电信—电路与系统]