HOMs simulation and measurement results of IHEP02 cavity

	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)
刊名	CHINESE PHYSICS C
	2015
卷号	39 期号:11 页码:117006
关键词	1.3 GHz 9-cell superconducting cavity low-loss shape higher order modes Q(e) experimental measurements
通讯作者	郑洪娟
英文摘要	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.
学科主题	Physics
类目[WOS]	Physics, Nuclear ; Physics, Particles & Fields
收录类别	SCI
WOS记录号	WOS:000364800400020
公开日期	2016-05-03
内容类型	期刊论文
源URL	[http://ir.ihep.ac.cn/handle/311005/228819]
专题	高能物理研究所_加速器中心
推荐引用方式 GB/T 7714	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.