Self-magnetic field effects on laser-driven wakefield electron acceleration in axially magnetized ion channel

IF 1.1 4区物理与天体物理 Q4 PHYSICS, APPLIED

Laser and Particle Beams Pub Date : 2020-10-05 DOI:10.1017/s0263034620000324

A. Kargarian, K. Hajisharifi

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引用次数: 1

Abstract

In this paper, we have investigated the relativistic electron acceleration by plasma wave in an axially magnetized plasma by considering the self-magnetic field effects. We show that the optimum value of an external axial magnetic field could increase the electron energy gain more than 40% than that obtained in the absence of the magnetic field. Moreover, results demonstrate that the self-magnetic field produced by the electric current of the energetic electrons plays a significant role in the plasma wakefield acceleration of electron. In this regard, it will be shown that taking into account the self-magnetic field can increase the electron energy gain up to 36% for the case with self-magnetic field amplitude Ωs = 0.3 and even up to higher energies for the systems containing stronger self-magnetic field. The effects of plasma wave amplitude and phase, the ion channel field magnitude, and the electron initial kinetic energy on the acceleration of relativistic electron have also been investigated. A scaling law for the optimization of the electron energy is eventually proposed.

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自磁场对轴向磁化离子通道中激光驱动尾流场电子加速的影响

本文在考虑自磁场效应的情况下，研究了轴向磁化等离子体中等离子体波对电子的相对论性加速。我们发现，与没有磁场时相比，最优的外轴向磁场可以使电子能量增益增加40%以上。结果表明，高能电子的电流产生的自磁场在电子的等离子体尾流场加速中起着重要作用。对于自磁场振幅Ωs = 0.3的情况，考虑自磁场可以使电子能量增益提高36%，对于含有更强自磁场的系统，甚至可以提高更高的能量。研究了等离子体波振幅和相位、离子通道场大小和电子初始动能对相对论性电子加速度的影响。最后提出了优化电子能量的标度律。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Laser and Particle Beams PHYSICS, APPLIED-

CiteScore

1.90

自引率

11.10%

发文量

审稿时长

1 months

期刊介绍： Laser and Particle Beams is an international journal which deals with basic physics issues of intense laser and particle beams, and the interaction of these beams with matter. Research on pulse power technology associated with beam generation is also of strong interest. Subjects covered include the physics of high energy densities; non-LTE phenomena; hot dense matter and related atomic, plasma and hydrodynamic physics and astrophysics; intense sources of coherent radiation; high current particle accelerators; beam-wave interaction; and pulsed power technology.