Vaulina O S, Adamovich X G, Petrov O F, Fortov V E
Joint Institute for High Temperatures, RAS 125412, Izhorskaya Street, 13/19, Moscow, Russia.
Phys Rev E Stat Nonlin Soft Matter Phys. 2008 Jun;77(6 Pt 2):066404. doi: 10.1103/PhysRevE.77.066404. Epub 2008 Jun 10.
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.
本文给出了在射频电容放电实验室等离子体中形成的尘埃系统传质过程的实验研究结果。验证了朗之万方程和格林 - 库博方程在描述实验室等离子体中尘埃颗粒动力学方面的有效性。提出了一种同时测定尘埃等离子体参数的方法，如颗粒的动力学温度、摩擦系数和特征振荡频率。估算了所研究系统的耦合参数和颗粒电荷的最小值。将所得尘埃子系统的参数（扩散系数、对关联函数、电荷和颗粒的摩擦系数）与现有的理论和数值数据进行了比较。
