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首页> 外文期刊>Physics Letters, A >Experimental wake-induced oscillations of dust particles in a rf plasma
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Experimental wake-induced oscillations of dust particles in a rf plasma

机译:射频等离子体中尘埃粒子的实验唤醒诱发振荡

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摘要

Self-excited nonlinear oscillations of dust particles floating in a rf plasma are described. Small assemblies of two and three dust particles are levitated in the sheath, above the driven electrode due to the equilibrium between the electrostatic, gravitational, friction and ion drag forces. In a very narrow range of pressures, spontaneous oscillations of the particles are observed. A heating mechanism based on the ion focusing effect produced by the particles as ions flow vertically past them in the plasma sheath, is proposed to explain the oscillations. (C) 2003 Elsevier B.V. All rights reserved. [References: 26]
机译:描述了漂浮在射频等离子体中的尘埃粒子的自激非线性振荡。由于静电力,引力,摩擦力和离子拖曳力之间的平衡,在驱动电极上方的鞘中悬浮着由两个和三个灰尘颗粒组成的小组件。在非常窄的压力范围内,观察到颗粒的自发振荡。提出了一种基于粒子在离子鞘中垂直流过粒子时产生的离子聚焦效应的加热机制来解释这种振荡。 (C)2003 Elsevier B.V.保留所有权利。 [参考:26]

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