Effect of high-voltage nanosecond pulses on complex plasmas

被引：10

作者：

Pustylnik, M. Y. ^{[1
]}

Ivlev, A. V. ^{[1
]}

Thomas, H. M. ^{[1
]}

Morfill, G. E. ^{[1
]}

Vasilyak, L. M. ^{[2
]}

Vetchinin, S. R. ^{[2
]}

Polyakov, D. N. ^{[2
]}

Fortov, V. E. ^{[2
]}

机构：

[1] Max Planck Inst Extraterr Phys, D-85741 Garching, Germany

[2] Russian Acad Sci, Joint Inst High Temp, Moscow 125412, Russia

来源：

PHYSICS OF PLASMAS | 2009年 / 16卷 / 11期

关键词：

DUSTY PLASMAS; IONIZATION; EXCITATION; SHEATH; WAVES; IONS;

D O I：

10.1063/1.3254366

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：

Influence of high-voltage (1-11 kV) pulses of nanosecond (20 ns) duration on microparticles levitating in a rf plasma is studied. It is shown that the pulses produce significant influence on the plasma, causing perturbations with the relaxation time of the order of 10(-4) s. This time is sufficient. for the microparticle to acquire significant kinetic energy. Application of repetitive Pulses leads to the vertical oscillations of the microparticles. Clusters, consisting of small number of microparticles. exhibit parametric instabilities of horizontal modes under the effect of repetitive pulses. It was shown that the parametric instability is Caused by the vertical oscillations of the microparticles in the nonuniform environment of the sheath (C) 2009 American Institute of Physics [doi:10.1063/1.3254366]

引用

页数：5

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