RF input coupler with a coupling tuner for an RF acceleration cavity

被引：10
|
作者：
Ego, Hiroyasu [1 ]
机构：
[1] JASRI, Sayo, Hyogo 6795198, Japan
来源：
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT | 2006年 / 564卷 / 01期
关键词：
RF acceleration cavity; RF input coupler; coupling factor; suitably located iris; movable metal post; coupling tuner;
D O I：
10.1016/j.nima.2006.04.076
中图分类号：
TH7 [仪器、仪表];
学科分类号：
0804 ; 080401 ; 081102 ;
摘要：
In a storage ring with a high-current beam, RF coupling between an RF acceleration cavity and a waveguide is usually fixed to high overcoupling. In operation at a low beam current, this overcoupling becomes discrepant and a large amount of RF power is reflected from the cavity. In order to dissolve the coupling discrepancy, a new RF input coupler with a coupling tuner has been developed for SPring-8 accelerator. Its coupling factor can be tuned from I to 100 or more according to beam loading. This paper describes the ideal RF input coupler by RF simulations and low RF-power tests. (c) 2006 Elsevier B.V. All rights reserved.
引用
收藏
页码：74 / 80
页数：7
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