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Formation of wave-front pattern accompanied by current-driven electrostatic ion-cyclotron instabilities

机译:伴随电流驱动的静电离子回旋加速器不稳定性的波阵面图案的形成

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摘要

Formation of a wave-front pattern accompanied by an electrostatic ion-cyclotron instability driven by electrons drifting along a magnetic field is investigated by two-and-half dimensional particle simulations. A clear spatial wave-front pattern appears as the ion cyclotron wave grows due to the instability. When the electron stream is uniform in the system, an obliquely intersected stripe wave-front pattern is formed. When the stream has a bell-shaped pattern across the magnetic field, a V-shaped stripe wave-front pattern appears. The wave fronts have small angles with the magnetic field lines and propagate from the high-stream region to the low-stream region.
机译:通过二维粒子模拟研究了由电子沿着磁场漂移驱动的伴随静电离子回旋加速器不稳定性的波阵面图案的形成。由于不稳定性,随着离子回旋波的增长,出现清晰的空间波前图案。当电子流在系统中均匀时,形成倾斜相交的条纹波前图案。当流在磁场中具有钟形图案时,会出现V形条纹波前图案。波阵面与磁场线的夹角较小,并且从上游区域向下游区域传播。

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