RF coupler for high-power CWFEL photoinjector

被引：0

作者：

Kurennoy, SS ^{[1
]}

Young, LM ^{[1
]}

机构：

[1] Los Alamos Natl Lab, Los Alamos, NM 87545 USA

来源：

PROCEEDINGS OF THE 2003 PARTICLE ACCELERATOR CONFERENCE, VOLS 1-5 | 2003年

关键词：

D O I：

暂无

中图分类号：

O412 [相对论、场论]; O572.2 [粒子物理学];

学科分类号：

摘要：

A high-current emittance-compensated RF photo-injector is a key enabling technology for a high-power CW FEL. The design presently under way is a 100-mA, 2.5-cell pi-mode, 700-MHz, normal conducting demonstration CW RF photoinjector. This photoinjector will be capable of accelerating 3 nC per bunch with an emittance at the wiggler less than 10 mm-mrad. The paper presents results for the RF coupling from ridged waveguides to the photoinjector RF cavity. The LEDA and SNS couplers inspired this "dog-bone" design. Electromagnetic modeling of the coupler-cavity system has been performed using both 2-D and 3-D frequency-domain calculations, and a novel time-domain approach with MicroWave Studio. These simulations were used to adjust the coupling coefficient and calculate the powerloss distribution on the coupling slot. The cooling of this slot is a rather challenging thermal management project.

引用

页码：3515 / 3517

页数：3

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