2-D plasma dust crystal compression in a parabolic well

被引：5

作者：

Hebner, GA ^{[1
]}

Riley, ME ^{[1
]}

Johnson, DS ^{[1
]}

Ho, P ^{[1
]}

Buss, RJ ^{[1
]}

机构：

[1] Sandia Natl Labs, Albuquerque, NM 87185 USA

来源：

IEEE TRANSACTIONS ON PLASMA SCIENCE | 2002年 / 30卷 / 01期

关键词：

dust; measurements; plasma; plasma sheath;

D O I：

10.1109/TPS.2002.1003940

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 spherically curved (locally parabolic) electrode with a conformal plasma sheath can be used to directly test two-dimensional (2-D) plasma crystal particle-particle interaction models and to derive the screening length and the charge on the particles. By using such a well, the lateral interaction potential was isolated and accessible. Good agreement was obtained between measured and calculated single particle trajectories using measured gas densities and temperatures to determine the neutral gas drag. Plasma crystal compression in the parabolic potential was demonstrated to be in good agreement with that predicted by an equation of state for the 2-D dust layer incorporating Debye shielding of the charges.

引用

页码：94 / 95

页数：2

共 3 条

[1] DIRECT OBSERVATION OF COULOMB CRYSTALS AND LIQUIDS IN STRONGLY COUPLED RF DUSTY PLASMAS
CHU, JH
I, L
[J]. PHYSICAL REVIEW LETTERS, 1994, 72 (25) : 4009 - 4012
[2] Direct determination of particle-particle interactions in a 2D plasma dust crystal
Hebner, GA
Riley, ME
Johnson, DS
Ho, P
Buss, RJ
[J]. PHYSICAL REVIEW LETTERS, 2001, 87 (23) : 235001 - 1
[3] PLASMA CRYSTAL - COULOMB CRYSTALLIZATION IN A DUSTY PLASMA
THOMAS, H
MORFILL, GE
DEMMEL, V
GOREE, J
FEUERBACHER, B
MOHLMANN, D
[J]. PHYSICAL REVIEW LETTERS, 1994, 73 (05) : 652 - 655

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