Simulation of the development and interaction of instabilities in a relativistic electron beam under variation of the beam wall thickness

被引：3
作者：
Badarin, A. A. [1 ,2 ]
Kurkin, S. A. [1 ,2 ]
Koronovskii, A. A. [2 ]
Rak, A. O. [3 ]
Hramov, A. E. [1 ,2 ]
机构：
[1] Saratov NG Chernyshevskii State Univ, Saratov 410012, Russia
[2] Yuri Gagarin State Tech Univ, Saratov 410054, Russia
[3] Belorussian State Univ Informat & Radioelect, Minsk 220013, BELARUS
来源：
PLASMA PHYSICS REPORTS | 2017年 / 43卷 / 03期
基金：
俄罗斯基础研究基金会; 俄罗斯科学基金会;
关键词：
TIME-DEPENDENT REGIMES; LOW-VOLTAGE VIRCATOR; CHAOTIC OSCILLATIONS; NONLINEAR DYNAMICS; VIRTUAL CATHODE; STABILITY; PLASMA; POWER; GENERATION; SIGNAL;
D O I：
10.1134/S1063780X17030047
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：
The development and interaction of Bursian and diocotron instabilities in an annular relativistic electron beam propagating in a cylindrical drift chamber are investigated analytically and numerically as functions of the beam wall thickness and the magnitude of the external uniform magnetic field. It is found that the interaction of instabilities results in the formation of a virtual cathode with a complicated rotating helical structure and several reflection regions (electron bunches) in the azimuthal direction. It is shown that the number of electron bunches in the azimuthal direction increases with decreasing beam wall thickness and depends in a complicated manner on the magnitude of the external magnetic field.
引用
收藏
页码：346 / 353
页数：8
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