Interaction between glow discharge plasma and dust particles

被引:22
作者
Fedoseev, A. V. [1 ]
Sukhinin, G. I. [1 ,2 ]
Ramazanov, T. S. [3 ]
Kodanova, S. K. [3 ]
Bastykova, N. H. [3 ]
机构
[1] Kutateladze Inst Thermophys SB RAS, Novosibirsk, Russia
[2] Novosibirsk State Univ, Novosibirsk, Russia
[3] Al Farabi Kazakh Natl Univ, SRI Expt & Theoret Phys, Alma Ata, Kazakhstan
关键词
dusty plasma; nonlocal self-consistent kinetic model; Boltzmann equation; DC glow discharge; ELECTRON-ENERGY DISTRIBUTION; OBJECT;
D O I
10.1134/S086986431104010X
中图分类号
V [航空、航天];
学科分类号
08 ; 0825 ;
摘要
The effect of dust particle concentration on gas discharge plasma parameters was studied through development of a self-consistent kinetic model which is based on solving the Boltzmann equation for the electron distribution function. It was shown that an increase in the Havnes parameter causes an increase in the average electric field and ion density, as well as a decrease in the charge of dust particles and electron density in a dust particle cloud. Self-consistent simulations for a wide range of plasma and dust particle parameters produced several scaling laws: these are laws for dust particle potential and electric field as a function of dust particle concentration and radius, and the discharge current density. The simulation results demonstrate that the process of self-consistent accommodation of parameters of dust particles and plasma in condition of particle concentration growth causes a growth in the number of high-energy electrons in plasma, but not to depletion of electron distribution function.
引用
收藏
页码:615 / 627
页数:13
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