Trapped modes in tapered vacuum chambers for a mini-gap undulator magnet

被引：1

作者：

Blednykh, Alexei ^{[1
]}

机构：

[1] Brookhaven Natl Lab, NSLS, Upton, NY 11973 USA

来源：

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT | 2006年 / 565卷 / 02期

关键词：

tapered vacuum chambers; wakefields; impedance; trapped modes; cut-off frequency; kick factor;

D O I：

10.1016/j.nima.2006.06.027

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

Consideration of transverse wakefields and impedances due to the tapered vacuum chambers for superconducting mini-gap undulators revealed the existence of trapped modes. To investigate this phenomenon, a series of analytical and numerical calculations were performed for both elliptical and rectangular chambers. A rectangular prototype was built and measured and the experimental results were found to be in very good agreement with theory. Knowledge about the impedance of tapered vacuum chambers is important for the evaluation of transverse instabilities in high-energy accelerators. (c) 2006 Elsevier B.V. All rights reserved.

引用

页码：380 / 393

页数：14

共 5 条

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