Surface waves on the boundary of a conducting medium and their excitation by a relativistic electron beam

被引：0

作者：

A. V. Kukushkin

A. A. Rukhadze

机构：

[1] Nizhny Novgorod State Technical University,Prokhorov General Physics Institute

[2] Russian Academy of Sciences,undefined

[3] Moscow Institute of Physics and Technology,undefined

来源：

Plasma Physics Reports | 2017年 / 43卷

关键词：

D O I：

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学科分类号：

摘要：

Excitation of surface waves by a relativistic electron beam propagating over a conducting cylindrical medium (metal or highly ionized plasma) is investigated theoretically. Dispersion relations describing the linear interaction of surface electromagnetic waves with a monoenergetic electron beam are derived, and the growth rates and spatial amplification factors of excited waves are determined. Condition for the nonlinear trapping of the beam electrons by a surface wave is used to determine the maximum amplitude of the excited wave and the optimal radiator length. The electric field of a surface wave excited by an electron beam is estimated for a particular case.

引用

页码：937 / 942

页数：5

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