Experimental and numerical study of a dust cloud formation in the stratified positive column of a dc glow discharge in helium

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Experimental and numerical study of a dust cloud formation in the stratified positive column of a dc glow discharge in helium. / Fedoseev, A. V.; Salnikov, M. V.; Demin, N. A. и др.

в: Physics of Plasmas, Том 25, № 8, 083710, 01.08.2018.

Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование

BibTeX

@article{967f846eb8ab4e99b4aa422bbbc4f25f,

title = "Experimental and numerical study of a dust cloud formation in the stratified positive column of a dc glow discharge in helium",

abstract = "The experimental and theoretical investigations of the formation of dust particle clouds in the stratified positive column of a dc glow discharge in helium were performed. The size and shape of a dust cloud that levitated in the strong electric field of the striations in a vertically oriented discharge tube were measured under different helium pressures. Axial electric field strength was also experimentally estimated. A model for radial distributions of all dusty plasma parameters of the positive column of the dc glow discharge was developed to describe the obtained experimental results. The model is based on the solution of a non-local Boltzmann equation for an electron energy distribution function, drift-diffusion equations for ions and dust particles, and a Poisson equation for a self-consistent radial electric field. The experimental and calculated results show that the size of the dust cloud decreases with the increase in the gas pressure, and the axial electric field strength pressure dependencies have minima. At low gas pressures, the dust particle charge number density increases and exceeds the electron density that strongly influences the plasma parameters.",

keywords = "ION DRAG, CRYSTALLINE-STRUCTURES, PLASMA PARAMETERS, COULOMB CRYSTALS, COMPLEX PLASMA, PARTICLES, CHARGE, INSTABILITIES, GRAINS",

author = "Fedoseev, {A. V.} and Salnikov, {M. V.} and Demin, {N. A.} and Sukhinin, {G. I.} and Vasiliev, {M. M.} and Petrov, {O. F.}",

note = "Publisher Copyright: {\textcopyright} 2018 Author(s).",

year = "2018",

month = aug,

day = "1",

doi = "10.1063/1.5046141",

language = "English",

volume = "25",

journal = "Physics of Plasmas",

issn = "1070-664X",

publisher = "American Institute of Physics",

number = "8",

}

RIS

TY - JOUR

T1 - Experimental and numerical study of a dust cloud formation in the stratified positive column of a dc glow discharge in helium

AU - Fedoseev, A. V.

AU - Salnikov, M. V.

AU - Demin, N. A.

AU - Sukhinin, G. I.

AU - Vasiliev, M. M.

AU - Petrov, O. F.

PY - 2018/8/1

Y1 - 2018/8/1

N2 - The experimental and theoretical investigations of the formation of dust particle clouds in the stratified positive column of a dc glow discharge in helium were performed. The size and shape of a dust cloud that levitated in the strong electric field of the striations in a vertically oriented discharge tube were measured under different helium pressures. Axial electric field strength was also experimentally estimated. A model for radial distributions of all dusty plasma parameters of the positive column of the dc glow discharge was developed to describe the obtained experimental results. The model is based on the solution of a non-local Boltzmann equation for an electron energy distribution function, drift-diffusion equations for ions and dust particles, and a Poisson equation for a self-consistent radial electric field. The experimental and calculated results show that the size of the dust cloud decreases with the increase in the gas pressure, and the axial electric field strength pressure dependencies have minima. At low gas pressures, the dust particle charge number density increases and exceeds the electron density that strongly influences the plasma parameters.

AB - The experimental and theoretical investigations of the formation of dust particle clouds in the stratified positive column of a dc glow discharge in helium were performed. The size and shape of a dust cloud that levitated in the strong electric field of the striations in a vertically oriented discharge tube were measured under different helium pressures. Axial electric field strength was also experimentally estimated. A model for radial distributions of all dusty plasma parameters of the positive column of the dc glow discharge was developed to describe the obtained experimental results. The model is based on the solution of a non-local Boltzmann equation for an electron energy distribution function, drift-diffusion equations for ions and dust particles, and a Poisson equation for a self-consistent radial electric field. The experimental and calculated results show that the size of the dust cloud decreases with the increase in the gas pressure, and the axial electric field strength pressure dependencies have minima. At low gas pressures, the dust particle charge number density increases and exceeds the electron density that strongly influences the plasma parameters.

KW - ION DRAG

KW - CRYSTALLINE-STRUCTURES

KW - PLASMA PARAMETERS

KW - COULOMB CRYSTALS

KW - COMPLEX PLASMA

KW - PARTICLES

KW - CHARGE

KW - INSTABILITIES

KW - GRAINS

UR - http://www.scopus.com/inward/record.url?scp=85052706285&partnerID=8YFLogxK

U2 - 10.1063/1.5046141

DO - 10.1063/1.5046141

M3 - Article

AN - SCOPUS:85052706285

VL - 25

JO - Physics of Plasmas

JF - Physics of Plasmas

SN - 1070-664X

IS - 8

M1 - 083710

ER -

ID: 16336126