Two mechanisms of resonance overlapping in excitation of azimuthal surface waves by rotating relativistic electron beams

被引：1

作者：

Girka, Igor O. ^{[1
]}

Pavlenko, Ivan V. ^{[1
]}

Thumm, Manfred ^{[2
,3
]}

机构：

[1] Kharkov Natl Univ, Svobody Sq 4, UA-61022 Kharkov, Ukraine

[2] Karlsruhe Inst Technol, IHM, D-76131 Karlsruhe, Germany

[3] Karlsruhe Inst Technol, IHE, D-76131 Karlsruhe, Germany

来源：

PHYSICS OF PLASMAS | 2018年 / 25卷 / 05期

关键词：

MODES;

D O I：

10.1063/1.5025712

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：

Azimuthal surface waves are electromagnetic eigenwaves of cylindrical plasma-filled metallic waveguides with a stationary axial magnetic field. These waves with extraordinary polarization can effectively interact with relativistic electron beams rotating along large Larmor orbits in the gap, which separates the plasma column from the waveguide wall. Both widening the layer and increasing the beam particle density are demonstrated to cause resonance overlapping seen from the perspective of the growth rate dependence on the effective wave number. Published by AIP Publishing.

引用

页数：7

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