EXPERIMENTAL STUDY OF ROTATION OF DUST STRUCTURES IN MAGNETIC FIELD

Abstract

In this paper the results of experimental studies of the formation of plasma-dust structures in a dc discharge in a magnetic field with the induction of 400 gaussare presented. In weak magnetic fields, the rotation is counterclockwise, that is, the angular velocity ω and the magnetic field B are directed opposite to each other: .In increasing magnetic field dust structures slow down and at some value of  theystop.And further increasing leads to rotation in the opposite direction ( ). During the implementation of the experiment the dependences of the angular velocity on the magnetic field at different values of pressure and current were obtained.

Keywords:gas discharge, dusty plasma, magnetic field, plasma-dust structure, rotational movement.