Experimental determination of the ion drag force in a complex plasma

被引:0
作者
Yaroshenko, V [1 ]
Ratynskaia, S [1 ]
Khrapak, SA [1 ]
Thoma, MH [1 ]
Kretschmer, M [1 ]
Höfner, H [1 ]
Morfill, GE [1 ]
Zobnin, A [1 ]
Usachev, A [1 ]
Petrov, O [1 ]
Fortov, V [1 ]
机构
[1] Max Planck Inst Extraterr Phys, D-85741 Garching, Germany
来源
NEW VISTAS IN DUSTY PLASMAS | 2005年 / 799卷
关键词
ion drag; complex DC-plasma;
D O I
暂无
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
The ion drag force acting on dust particles in the positive column of a dc discharge is measured in the pressure range 20-120 Pa. The force is obtained by a method which does not require an a priori knowledge of the particle charge but uses the charge gradient determined from the same experiment. The method depends only on two experimentally determined quantities: the particle drift velocity and the electric field. The comparison of experimental results with theoretical models is presented and discussed.
引用
收藏
页码:243 / 246
页数:4
相关论文
共 12 条
[1]   TRANSPORT OF DUST PARTICLES IN GLOW-DISCHARGE PLASMAS [J].
BARNES, MS ;
KELLER, JH ;
FORSTER, JC ;
ONEILL, JA ;
COULTAS, DK .
PHYSICAL REVIEW LETTERS, 1992, 68 (03) :313-316
[2]   On the resistance experienced by spheres in their motion through gases [J].
Epstein, PS .
PHYSICAL REVIEW, 1924, 23 (06) :710-733
[3]   Measurement of the ion drag force on free falling microspheres in a plasma [J].
Hirt, M ;
Block, D ;
Piel, A .
PHYSICS OF PLASMAS, 2004, 11 (12) :5690-5696
[4]   Force on a charged test particle in a collisional flowing plasma [J].
Ivlev, AV ;
Khrapak, SA ;
Zhdanov, SK ;
Morfill, GE ;
Joyce, G .
PHYSICAL REVIEW LETTERS, 2004, 92 (20) :205007-1
[5]   Ion drag force in complex plasmas [J].
Khrapak, SA ;
Ivlev, AV ;
Morfill, GE ;
Thomas, HM .
PHYSICAL REVIEW E, 2002, 66 (04) :4-046414
[6]   Rotating dust ring in an RF discharge coupled with a dc-magnetron sputter source.: Experiment and simulation [J].
Matyash, K ;
Fröhlich, M ;
Kersten, H ;
Thieme, G ;
Schneider, R ;
Hannemann, M ;
Hippler, R .
JOURNAL OF PHYSICS D-APPLIED PHYSICS, 2004, 37 (19) :2703-2708
[7]   Experimental determination of dust-particle charge in a discharge plasma at elevated pressures [J].
Ratynskaia, S ;
Khrapak, S ;
Zobnin, A ;
Thoma, MH ;
Kretschmer, M ;
Usachev, A ;
Yaroshenko, V ;
Quinn, RA ;
Morfill, GE ;
Petrov, O ;
Fortov, V .
PHYSICAL REVIEW LETTERS, 2004, 93 (08) :085001-1
[8]   The project "Plasmakristall-4" (PK-4) - a dusty plasma experiment in a combined dc/rf(i) discharge plasma under microgravity conditions [J].
Usachev, A ;
Zobnin, A ;
Petrov, O ;
Fortov, V ;
Thoma, M ;
Kretschmer, M ;
Ratynskaia, S ;
Quinn, R ;
Hoefner, H ;
Morfill, G .
CZECHOSLOVAK JOURNAL OF PHYSICS, 2004, 54 :C639-C647
[9]  
YAROSHENKO V, 2005, IN PRESS PHYS PLASMA
[10]   Measurement of the ion drag force on falling dust particles and its relation to the void formation in complex (dusty) plasmas [J].
Zafiu, C ;
Melzer, A ;
Piel, A .
PHYSICS OF PLASMAS, 2003, 10 (05) :1278-1282