Mechanical design and analysis of a low beta squeezed half-wave resonator

A superconducting squeezed type half-wave resonator （HWR） of β=0.09 has been developed at the Institute of Modern Physics, Lanzhou. In this paper, a basic design is presented for the stiffening structure for the detuning effect caused by helium pressure and Lorentz force. The mechanical modal analys...

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Published inChinese physics C Vol. 38; no. 8; pp. 88 - 93
Main Author 贺守波 张聪 岳伟明 王若旭 徐孟鑫 王志军 皇世春 黄玉璐 蒋天才 王锋锋 张升学 何源 张生虎 赵红卫
Format Journal Article
LanguageEnglish
Published 01.08.2014
Subjects
半波
失谐效应
挤压
机械设计
洛伦兹力
测试分析
谐振器
频率偏移
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Summary:A superconducting squeezed type half-wave resonator （HWR） of β=0.09 has been developed at the Institute of Modern Physics, Lanzhou. In this paper, a basic design is presented for the stiffening structure for the detuning effect caused by helium pressure and Lorentz force. The mechanical modal analysis has been investigated the with finite element method （FEM）. Based on these considerations, a new stiffening structure is proposed for the HWR cavity. The computation results concerning the frequency shift show that the low beta HWR cavity with new stiffening structure has low frequency sensitivity coefficient df/dp and Lorentz force detuning coefficient KL, and stable mechanical properties.
Bibliography:11-5641/O4
HE Shou-Bo, ZHANG Cong,YUE Wei-Ming, WANG Ruo-Xu, XU Meng-Xin, WANG Zhi-Jun,HUANG Shi-Chun, HUANG Yu-Lu,JIANG Tian-Cai, WANG Feng-Feng, ZHANG Sheng-Xue, HE Yuan, ZHANG Sheng-nu,ZHAO nong-Wei（ 1 Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China 2 University of Chinese Academy of Sciences, Beijing 100049, China）
A superconducting squeezed type half-wave resonator （HWR） of β=0.09 has been developed at the Institute of Modern Physics, Lanzhou. In this paper, a basic design is presented for the stiffening structure for the detuning effect caused by helium pressure and Lorentz force. The mechanical modal analysis has been investigated the with finite element method （FEM）. Based on these considerations, a new stiffening structure is proposed for the HWR cavity. The computation results concerning the frequency shift show that the low beta HWR cavity with new stiffening structure has low frequency sensitivity coefficient df/dp and Lorentz force detuning coefficient KL, and stable mechanical properties.
HWR, mechanical stability, stiffening, FEM
ISSN:1674-1137
0254-3052
DOI:10.1088/1674-1137/38/8/087005