Evolution of the mass-transfer processes in nonideal dissipative systems II: Experiments in dusty plasma

O. S. Vaulina, X. G. Adamovich, O. F. Petrov, and V. E. Fortov

Phys. Rev. E 77, 066404 – Published 10 June 2008

Abstract

The results of the experimental study of mass-transfer processes are presented for dust systems, forming in a laboratory plasma of a radio-frequency capacitive discharge. The validity of the Langevin and Green-Kubo equations for the description of the dynamics of dusty grains in laboratory plasma is verified. A method for simultaneous determination of dusty plasma parameters, such as the kinetic temperature of the grains, their friction coefficient, and characteristic oscillation frequency, is suggested. The coupling parameter of the system under study and the minimal values of the grain charges are estimated. The parameters of the dusty subsystem obtained (diffusion coefficients, pair correlation functions, charges, and friction coefficients of the grains) are compared with the existing theoretical and numerical data.