Noise characteristics of a plasma relativistic microwave amplifier

被引：11

作者：

Strelkov, P. S. ^{[1
]}

Ivanov, I. E. ^{[1
]}

Shumeiko, D. V. ^{[1
]}

机构：

[1] Russian Acad Sci, Prokhorov Gen Phys Inst, Ul Vavilova 38, Moscow 119991, Russia

来源：

PLASMA PHYSICS REPORTS | 2016年 / 42卷 / 07期

关键词：

EXPLOSIVE EMISSION CATHODES; ELECTRON-BEAM; GHZ;

D O I：

10.1134/S1063780X16070102

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：

Reasons for the occurrence of microwave noise at the output of a plasma relativistic amplifier have been analyzed. It is found that, in the absence of an input signal, the emission spectrum of the plasma relativistic microwave amplifier is similar to that of an electron beam in vacuum. It is concluded that microwave noise at the output of the amplifier appears as a result of amplification of the intrinsic noise of the electron beam. The emission characteristics of a relativistic electron beam formed in a magnetically insulated diode with an explosive emission cathode in vacuum have been studied experimentally for the first time. An important point is that, in this case, there is no virtual cathode in the drift space.

引用

页码：653 / 657

页数：5

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