Voids in Dusty Plasma of a Stratified DC Glow Discharge in Noble Gases

Fedoseev, A. V.; Sukhinin, G. I.; Abdirakhmanov, A. R.; Dosbolayev, M. K.; Рамазанов, Т. С.

doi:10.1002/ctpp.201500099

Cited by 14 publications

(23 citation statements)

References 18 publications

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“…[1][2][3][4][5][6][7][8][9][10][11][12][13] It was understood that electron and ion losses on dust particle surface should be compensated for in ionizing collisions, and an averaged electric field should increase in the region containing dust particles. The influence of dust particles on gas discharge plasma is negligible only for low dust particles concentration and charge.…”

Section: Introductionmentioning

confidence: 99%

“…[6][7][8] For example, dust particle charging is provided by the electron and ion fluxes into the cloud from the surrounding plasma. [6][7][8] For example, dust particle charging is provided by the electron and ion fluxes into the cloud from the surrounding plasma.…”

Section: Introductionmentioning

confidence: 99%

“…There are many papers devoted to the influence of dust particles on gas discharge plasma parameters. [1][2][3][4][5][6][7][8][9][10][11][12][13] It was understood that electron and ion losses on dust particle surface should be compensated for in ionizing collisions, and an averaged electric field should increase in the region containing dust particles. With the help of a homogeneous self-consistent kinetic model, it was shown [2,3] that an increase of dust particles density leads to an increase of averaged electric field and ion density, and to a decrease of dust particle charge and electron density in the dust cloud.…”

Section: Introductionmentioning

confidence: 99%

“…At high dust particles density, the influence of the dust cloud on the plasma parameters can be even non-local and governed by the plasma conditions around the cloud. [6][7][8] For example, dust particle charging is provided by the electron and ion fluxes into the cloud from the surrounding plasma. In many papers the behaviour of dust particles is investigated in fixed plasma parameters without taking into account the influence of a dust component on these parameters.…”

Section: Introductionmentioning

confidence: 99%

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Non‐local electron kinetics around the cloud of dust particles

Fedoseev

Demin

Salnikov

et al. 2019

Contributions to Plasma Physics

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Mutual influence of dust particles and gas discharge plasma was investigated with the help of self-consistent non-local kinetic model. Calculations were performed for fixed step-like radial distributions of the dust particles density, and for self-consistent distribution calculated by the drift-diffusion equation. The results show, that the production of electrons and ion occurs mainly outside the dust cloud. In the case of self-consistent dust particles density distribution, inside the dust cloud the ionization rate is equal to the rate of electron and ion recombination on the dust particles, the radial components of electron and ion fluxes are almost equal to zero, and the radial electric field is expelled from the dust cloud. Presented results can be important for description of the plasma confinement of the dust particles clouds. KEYWORDS dusty plasma, electron energy distribution function, non-local electron kinetics 1

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Non‐local electron kinetics around the cloud of dust particles

Fedoseev

Demin

Salnikov

et al. 2019

Contributions to Plasma Physics

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“…2011; Fedoseev et al. 2016; Izvekova & Popel 2016), nanotechnology (Szetsen, Hsiu-Feng & Chien-Ju 2007; Kundrapu & Keidar 2012), cancer therapy in medicine (Keidar et al. 2013; Walk et al.…”

Section: Introductionmentioning

confidence: 99%

Dust particles of finite dimensions in complex plasmas: thermodynamics and dust-acoustic wave dispersion

et al. 2018

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Grounded on the premise that dust particles are charged hard balls, the analysis in Davletov et al. (Contrib. Plasma Phys., vol. 56, 2016, 308) provides an original pseudopotential model of intergrain interaction in complex (dusty) plasmas. This accurate model is engaged herein to consistently treat the finite-size effects from the process of dust particle charging to determination of the thermodynamic quantities and the dust-acoustic wave dispersion in the strongly coupled regime. The orbital motion limited approximation is adopted to evaluate an electric charge of dust grains immersed in a neutralizing background of the buffer plasma. To account for finite dimensions of dust particles, the radial distribution function is calculated within the reference hypernetted-chain (RHNC) approximation to demonstrate a well-pronounced short-range order formation at rather large values of the coupling parameter and the packing fraction. The evaluated excess pressure of the dust component is compared to the available theoretical approaches and the simulation data and is then used to predict the dust-acoustic wave (DAW) dispersion in the strongly coupled regime under the assumption that the dust particles charge varies in the course of propagation. In contrast to many previous investigations, it is demonstrated for the first time ever that for DAWs the charge variation of dust particles should necessarily be taken into account while evaluating the dust isothermal compressibility.

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Physical aspects of dust–plasma interactions

Pustylnik

Pikalev

Zobnin

et al. 2021

Contributions to Plasma Physics

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Low‐pressure gas discharge plasmas are known to be strongly affected by the presence of small dust particles. This issue plays a role in the investigations of dust particle‐forming plasmas, where the dust‐induced instabilities may affect the properties of synthesized dust particles. Also, gas discharges with large amounts of microparticles are used in microgravity experiments, where strongly coupled subsystems of charged microparticles represent particle‐resolved models of liquids and solids. In this field, deep understanding of dust–plasma interactions is required to construct the discharge configurations which would be able to model the desired generic condensed matter physics as well as, in the interpretation of experiments, to distinguish the plasma phenomena from the generic condensed matter physics phenomena. In this review, we address only physical aspects of dust–plasma interactions, that is, we always imply constant chemical composition of the plasma as well as constant size of the dust particles. We also restrict the review to two discharge types: dc discharge and capacitively coupled rf discharge. We describe the experimental methods used in the investigations of dust–plasma interactions and show the approaches to numerical modelling of the gas discharge plasmas with large amounts of dust. Starting from the basic physical principles governing the dust–plasma interactions, we discuss the state‐of‐the‐art understanding of such complicated, discharge‐type‐specific phenomena as dust‐induced stratification and transverse instability in a dc discharge or void formation and heartbeat instability in an rf discharge.

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Voids in Dusty Plasma of a Stratified DC Glow Discharge in Noble Gases

Cited by 14 publications

References 18 publications

Non‐local electron kinetics around the cloud of dust particles

Non‐local electron kinetics around the cloud of dust particles

Dust particles of finite dimensions in complex plasmas: thermodynamics and dust-acoustic wave dispersion

Physical aspects of dust–plasma interactions

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