Open AccessVisualization of plasma fluxes by a measurement of own rotation of a dust particle
Author(s) -
Е. С. Дзлиева,
V. Yu. Karasev,
I. R. Krylov,
I. Ch. Mashek,
L. A. Novikov,
S. I. Pavlov
Publication year - 2019
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1421/1/012030
Subject(s) - ambipolar diffusion , electron , physics , ion , magnetic field , atomic physics , particle (ecology) , rotation (mathematics) , plasma , dusty plasma , magnetosphere particle motion , computational physics , debye length , quantum mechanics , oceanography , geometry , mathematics , geology
A research of own rotation of single dust particle which is in a dust trap in the stratified glow discharge under imposed magnetic field is carried out. It is experimentally shown that in the scale of Debye length an action of azimuthal torque from the fluxes of ions and electrons is mutually compensated; an angular velocity of rotation of dusty particle remains invariable up to magnetic fields of 200 G. The found effect was given theoretical interpretation on a basis of consideration of ambipolar diffusion of positive ions and electrons to the particle surface.