Instability of relativistic electron beam-dielectric system for backward microwave amplification

被引：0

作者：

Wang Hong-Yu ^{[1
,3
]}

Kong Ling-Bao ^{[2
]}

Sun Peng ^{[1
]}

Hou Zhi-Ling ^{[4
]}

机构：

[1] Anshan Normal Univ, Sch Phys, Anshan 114005, Peoples R China

[2] Peking Univ, Sch Elect Engn & Comp Sci, Beijing 100871, Peoples R China

[3] Shanghai Bright Tech Informat Technol Co Ltd, Shanghai 200136, Peoples R China

[4] Beijing Univ Chem Technol, Sch Sci, Beijing 100029, Peoples R China

来源：

INDIAN JOURNAL OF PURE & APPLIED PHYSICS | 2015年 / 53卷 / 07期

基金：

中国国家自然科学基金;

关键词：

Relativistic electron beam; Slow wave system; Dispersion relation; Microwave amplification; CYCLOTRON MASER; PLASMA;

D O I：

暂无

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The linear wave dispersion relation of relativistic electron beam propagating along the negative direction of a constant guiding magnetic field in a slow wave structure has been presented by cold fluid limit. The instability occurs when the velocity of beam electrons exceeds the phase velocity of the wave. The numerical simulations of microwave amplification due to the instability indicate that the maximum interaction efficiency achieves about 16%. The maximum transverse drifting distance of the beam electrons calculated from single particle theory is about 0.02 cm and this result is also verified by Particle-In-Cell simulations.

引用

页码：488 / 491

页数：4

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