On potentials of gyrotron efficiency enhancement: Measurements and simulations on a 4-mm gyrotron

被引：39
作者：
Louksha, OI [1 ]
Piosczyk, B
Sominski, GG
Thumm, MK
Samsonov, DB
机构：
[1] St Petersburg State Polytech Univ, St Petersburg 195251, Russia
[2] EURATOM, Forschungszentrum Karlsruhe, IHM, D-76021 Karlsruhe, Germany
来源：
IEEE TRANSACTIONS ON PLASMA SCIENCE | 2006年 / 34卷 / 03期
关键词：
emission uniformity; energy spread; gyrotron efficiency; space-charge oscillations;
D O I：
10.1109/TPS.2006.875779
中图分类号：
O35 [流体力学]; O53 [等离子体物理学];
学科分类号：
070204 ; 080103 ; 080704 ;
摘要：
In a 74.2-GHz 100-kW pulse gyrotron, the characteristics of parasitic low-frequency oscillations and their influence on electron energy spread have been determined. A method for suppressing parasitic oscillations by varying the magnetic field distribution in the beam compression region is studied. The results of measurements demonstrate the influence of azimuthal inhomogeneity of electron emission on the excitation of parasitic oscillations and on the gyrotron output parameters. Obtained data allows one to determine the ways of gyrotron efficiency enhancement by improved quality of the helical electron beam.
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收藏
页码：502 / 511
页数：10
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