磁镜中电子的伯恩斯坦模式加速

IF 1.1 4区物理与天体物理 Q4 PHYSICS, APPLIED

Laser and Particle Beams Pub Date : 2020-06-01 DOI:10.1017/s0263034620000038

Ram Jeet, Asheel Kumar

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引用次数: 1

摘要

研究了磁镜中轴向局域大振幅电子伯恩斯坦模式下的电子动力学。由于等离子体密度和磁场分布，该模式是局域化的，并且可以由从外部发射的电子回旋波通过线性模式转换驱动。有限回旋半径的高能电子与模式共振相互作用，主要获得横向能量，有利于更强的镜像约束。在伯恩斯坦波归一化振幅A00 = 0.01和其他归一化参数Zn0 = 40, k⊥c/ω = 10， ${L}^{\prime}_m = 215$， ωc0/ω = 0.9， ψn0 = 3π/2时，电子可以获得数百keV范围内的能量。

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Bernstein mode acceleration of electrons in a magnetic mirror

Electron dynamics in an axially localized large amplitude electron Bernstein mode in a magnetic mirror is studied. The mode is localized due to plasma density and magnetic field profiles and could be driven by an electron cyclotron wave, launched from outside, via linear mode conversion. Energetic electrons of finite gyro-radius resonantly interact with the mode and gain primarily transverse energy favoring stronger mirror confinement. At Bernstein wave normalized amplitude of A00 = 0.01 and for other normalized parameters Zn0 = 40, k⊥c/ω = 10, ${L}^{\prime}_m = 215$, ωc0/ω = 0.9, ψn0 = 3π/2, the electrons can gain energy in the hundreds of keV range.

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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.