Probing the Plasma Sheath by the Continuous Mass Loss of Microparticles

被引：20

作者：

Carstensen, Jan ^{[1
]}

Haase, Fabian ^{[1
]}

Jung, Hendrik ^{[1
]}

Tadsen, Benjamin ^{[1
]}

Groth, Sebastian ^{[1
]}

Greiner, Franko ^{[1
]}

Piel, Alexander ^{[1
]}

机构：

[1] Univ Kiel, Inst Expt & Angew Phys, D-24098 Kiel, Germany

来源：

IEEE TRANSACTIONS ON PLASMA SCIENCE | 2013年 / 41卷 / 04期

关键词：

Complex plasma; diagnostic; dusty plasma; Epstein friction; plasma sheath; PARTICLES; DUST; POTENTIALS; PRESSURE; CHARGE;

D O I：

10.1109/TPS.2012.2224330

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：

A novel approach of using microparticles as probes for the sheath structure of radio-frequency discharges is presented. Starting with a heavy (large) particle confined deep in the plasma sheath, the ambient plasma causes a continuous mass loss, which increases the levitation height of the particle. It is shown that this process can be precisely monitored with the phase-resolved resonance method, which allows probing the force balance of the particle with high spatial resolution. The resulting force profile is in reasonable agreement with recent sheath models.

引用

页码：764 / 768

页数：5

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