Study of glow discharge positive column with cloud of disperse particles

Polyakov, D. N.; Шумова, В. В.; Vasilyak, L. M.; Фортов, В. Е.

doi:10.1016/j.physleta.2011.07.005

Cited by 33 publications

(28 citation statements)

References 25 publications

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“…In longitudinal direction we assume a homogeneous distribution of all plasma parameters including a constant value of axial electric field E z . As it was shown in previous works [1,[4][5][6] the longitudinal electric field increases with an addition of dust particles. The value of axial electric field E z is then generated self-consistently by the feed-back between E z and I d .…”

Section: Modelsupporting

confidence: 71%

“…The radial component of electric field was calculated with the help of Poisson equation (4) and was substituted into the Boltzmann equation (1) after each time-step for new calculations. It should be pointed out that the inversion of the electric field was also obtained in [5,6] for discharge in air with dust particles. We set the value of the discharge current equal to I d as it could be done in an experiment.…”

Section: Modelmentioning

confidence: 79%

“…In paper [4], with the help of a homogeneous self-consistent kinetic model it was shown that an increase of dust particles density leads to an increase of averaged electric field and ion density, and to a decrease of a dust particle charge in a dusty cloud. The influence of dust particles on radial distributions of plasma parameters was studied by Vasilyak et al with the help of diffusion approximation [5,6]. We present a non-stationary non-local kinetic model for self-consistent radial distributions of dusty plasma parameters.…”

Section: Introductionmentioning

confidence: 98%

“…There are many papers devoted to the influence of dust particles on gas discharge plasma parameters [1][2][3][4][5][6]. For the conditions of RF discharge used for thin films preparation, the influence of dust particles on discharge properties was investigated with the help of Particle-in-Cell Monte Carlo simulations by J.P. Boeuf [1] and later with the help of Boltzmann equation for EEDF by I. Denysenko et al [2].…”

Section: Introductionmentioning

confidence: 99%

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Radial Distributions of Dusty Plasma Parameters in a DC Glow Discharge

Sukhinin

Fedoseev

2012

Contrib. Plasma Phys.

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Key words Dusty plasma in a glow discharge, electron energy distribution function, radial distributions.A non-stationary non-local kinetic model for radial distributions of dusty plasma parameters based on the solution of Boltzmann equation for electron energy distribution function is presented. Electrons and ions production in ionizing collisions and their recombination on dust particle surface were taken into account. The drift-diffusion approximation for ions was used. To obtain the self-consistent radial distribution of electric potential the Poisson equation was used. It is shown that at high dust particle density the recombination of electrons and ions can exceed their production in ionization collisions in the region of dusty cloud. In this case the non-monotonous radial distribution of the electric field is formed, the radial electric field becomes reversed and the radial electron and ion fluxes change their direction toward the center of the tube.

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Section: Modelsupporting

confidence: 71%

Section: Modelmentioning

confidence: 79%

Section: Introductionmentioning

confidence: 98%

Section: Introductionmentioning

confidence: 99%

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Radial Distributions of Dusty Plasma Parameters in a DC Glow Discharge

Sukhinin

Fedoseev

2012

Contrib. Plasma Phys.

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“…Since Q 2 n p ≫ n i ∼ n e , the sum is dominated by the latter. Integrating over the domain of fine particle cloud L 3 , we have the enhanced charge neutrality

\frac{|n_{normali} - n_{normale} - Q n_{normalp}|}{n_{normali}} \sim \frac{λ_{normalp}^{2}}{R_{normala}^{2}} \frac{T_{normale}}{T_{normali}} ≪ \frac{λ_{normali}^{2}}{R_{normala}^{2}} \frac{T_{normale}}{T_{normali}} .

Though the tendency of the flatness of the potential has been noticed when fine particle density is high, the origin and the necessary condition have not been explored.…”

Section: Charge Neutrality With/without Fine Particlesmentioning

confidence: 99%

Strongly coupled fine particle clouds in fine particle (dusty) plasmas

Totsuji

2017

Contrib. Plasma Phys

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Based on drift‐diffusion equations, we show a large enhancement of the charge neutrality in fine particle clouds analytically and confirm it by numerical solutions, in both cases of microgravity and gravity. This observation enables us to construct simple models of fine particle clouds in both cases. Combined with the analysis of the Helmholtz free energy of inhomogeneous systems, our results give a formulation to obtain microscopic structures of fine particles in fine particle clouds.

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Glow Discharge Positive Column with Dust Particles in Neon

Vasilyak

Polyakov

Шумова

2013

Contrib. Plasma Phys.

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Experimental and numerical study of positive column of glow discharge in neon with dust particles is presented. The influence of dust structures on integral parameters was measured and simulated. Spatial distributions of electrons and electric field configuration in presence of dust cloud are represented. The reverse radial electric field direction is shown to appear within the dust cloud at high dust particle concentration. The current‐voltage characteristics of discharge in neon with and without dust particles are represented. (© 2013 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)

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Study of glow discharge positive column with cloud of disperse particles

Cited by 33 publications

References 25 publications

Radial Distributions of Dusty Plasma Parameters in a DC Glow Discharge

Radial Distributions of Dusty Plasma Parameters in a DC Glow Discharge

Strongly coupled fine particle clouds in fine particle (dusty) plasmas

Glow Discharge Positive Column with Dust Particles in Neon

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