Structural analysis of quarter-wave resonators in IMP

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...

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Bibliographic Details
Published in:Chinese physics C 2013-10, Vol.37 (10), p.78-82
Main Author: 张聪 贺守波 王若旭 张生虎 何源 赵红卫
Format: Article
Language:English
Subjects:
Excitation
Frequency shift
Helium
Holes
Lorentz force
Radio frequencies
Resonators
Superconductivity
无线频率
洛伦兹力
结构分析
结构设计
表面处理
谐振器
预先研究
频率偏移
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Summary: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.
ISSN:1674-1137
0254-3052
DOI:10.1088/1674-1137/37/10/107002