Effects of electromagnetic wiggler and ion channel guiding on equilibrium orbits and waves propagation in a free electron laser

被引：3
|
作者：
Amri, Hassan Ehsani [1 ]
Mohsenpour, Taghi [2 ]
机构：
[1] Islamic Azad Univ, Dept Phys, Nour Branch, Nour, Iran
[2] Univ Mazandaran, Fac Basic Sci, Dept Phys, Babol Sar, Iran
来源：
PHYSICS OF PLASMAS | 2016年 / 23卷 / 02期
关键词：
GAIN; TRAJECTORIES; GROWTH; FIELD;
D O I：
10.1063/1.4940943
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：
In this paper, an analysis of equilibrium orbits for electrons by a simultaneous solution of the equation of motion and the dispersion relation for electromagnetic wave wiggler in a free-electron laser (FEL) with ion-channel guiding has been presented. A fluid model has been used to investigate interactions among all possible waves. The dispersion relation has been derived for electrostatic and electromagnetic waves with all relativistic effects included. This dispersion relation has been solved numerically. For group I and II orbits, when the transverse velocity is small, only the FEL instability is found. In group I and II orbits with relatively large transverse velocity, new couplings between other modes are found. (C) 2016 AIP Publishing LLC.
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页数：7
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