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HOMs simulation and measurement results of IHEP02 cavity
Zheng HJ(郑洪娟); Zhai JY(翟纪元); Zhao TX(赵同宪); Gao J(高杰)
2015
发表期刊CHINESE PHYSICS C
卷号39期号:11页码:117006
通讯作者郑洪娟
文章类型Article
摘要In accelerator RE cavities, there exists not only the fundamental mode which is used to accelerate the beam, but also higher order modes (HOMs). The higher order modes excited by the beam can seriously affect beam quality, especially for the higher R/Q modes. 1.3 GHz low-loss 9-cell superconducting cavity as a candidate for ILC high gradient cavity, the properties of higher order mode has not been studied carefully. IHEP based on existing low loss cavity, designed and developed a large grain size 1.3 GHz low-loss 9-cell superconducting cavity (IHEP02 cavity). The higher order mode coupler of IHEP02 used TESLA coupler's design. As a result of the limitation of the mechanical design, the distance between higher order mode coupler and end cell is larger than TESLA cavity. This paper reports on measured results of higher order modes in the IHEP02 1.3 GHz low-loss 9-cell superconducting cavity. Using different methods, Qe of the dangerous modes passbands have been obtained. The results are compared with TESLA cavity results. R/Q of the first three passbands have also been obtained by simulation and compared with the results of the TESLA cavity.
关键词1.3 GHz 9-cell superconducting cavity low-loss shape higher order modes Q(e) experimental measurements
学科领域Physics
DOI10.1088/1674-1137/39/11/117006
收录类别SCI
WOS类目Physics, Nuclear ; Physics, Particles & Fields
WOS记录号WOS:000364800400020
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文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/228819
专题加速器中心
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Zheng HJ,Zhai JY,Zhao TX,et al. HOMs simulation and measurement results of IHEP02 cavity[J]. CHINESE PHYSICS C,2015,39(11):117006.
APA 郑洪娟,翟纪元,赵同宪,&高杰.(2015).HOMs simulation and measurement results of IHEP02 cavity.CHINESE PHYSICS C,39(11),117006.
MLA 郑洪娟,et al."HOMs simulation and measurement results of IHEP02 cavity".CHINESE PHYSICS C 39.11(2015):117006.
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