Measurement and Behavior Analysis of Beam Current Modulation in a Virtual Cathode Oscillator

被引：3
|
作者：
Nagao, Kazuki [1 ]
Kuno, Hiroyoshi [1 ]
Suzuki, Hayato [1 ]
Sugai, Taichi [1 ]
Jiang, Weihua [1 ]
机构：
[1] Nagaoka Univ Technol, Extreme Energy Dens Res Inst, Nagaoka, Niigata 9402188, Japan
来源：
IEEE TRANSACTIONS ON PLASMA SCIENCE | 2021年 / 49卷 / 11期
关键词：
Detectors; Cathodes; Microwave oscillators; Current measurement; Electron beams; Anodes; Electromagnetic heating; high-power microwave generation; high-voltage techniques; particle beam measurements; virtual cathode oscillator; MICROWAVE GENERATION; REFLEX TRIODE; SIMULATION; VIRCATOR;
D O I：
10.1109/TPS.2021.3094203
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：
Modulation and amplitude of transmitted electron beam current in a virtual cathode oscillator have been measured by using two beam detectors, large detector and small detector. The objective is to understand the mechanism of microwave oscillation in a virtual cathode oscillator. The large detector has given us information about amplitude of the transmitted beam current from which the condition of virtual cathode formation has been obtained. The small detector has been used to measure the current modulation in the transmitted electron beam. The results have provided direct evidence of the virtual cathode existence and oscillation. The time-frequency behavior of the beam modulation has matched with that of the output microwave.
引用
收藏
页码：3365 / 3370
页数：6
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