Vortex electron flux and EDF nonlocality of moderate and high-pressure gas discharge plasmas

Результат исследований: Научные публикации в периодических изданияхстатья

1 цитирование (Scopus)

Выдержка

Even at medium and high pressures, when the standard, commonly accepted in the literature as the criterion of the applicability of the local field approximation (LFA) L > λ ϵ is fulfilled, the ambipolar field is shown to be dominant on the periphery of plasma, which leads to the formation of a vortex motion of electrons on the phase plane and LFA non-applicability for the solution of the Boltzmann kinetic equation. The spinning direction of the vortex depends on the behavior of the momentum transfer cross sections. In most cases, the vortex rotates counterclockwise; however, for decreasing cross-sections, a clockwise direction is possible. One manifestation of the vortexes is complex spatial profiles of the excitation rates and their constants on the periphery of the plasma volume.

Язык оригиналаанглийский
Номер статьи045007
ЖурналPlasma Sources Science and Technology
Том27
Номер выпуска4
DOI
СостояниеОпубликовано - 25 апр 2018

Отпечаток

electron flux
gas discharges
vortices
cross sections
approximation
kinetic equations
metal spinning
momentum transfer
profiles
excitation
electrons

Предметные области Scopus

  • Физика и астрономия (все)

Цитировать

@article{a892efb77dc646069facbe5054bd512b,
title = "Vortex electron flux and EDF nonlocality of moderate and high-pressure gas discharge plasmas",
abstract = "Even at medium and high pressures, when the standard, commonly accepted in the literature as the criterion of the applicability of the local field approximation (LFA) L > λ ϵ is fulfilled, the ambipolar field is shown to be dominant on the periphery of plasma, which leads to the formation of a vortex motion of electrons on the phase plane and LFA non-applicability for the solution of the Boltzmann kinetic equation. The spinning direction of the vortex depends on the behavior of the momentum transfer cross sections. In most cases, the vortex rotates counterclockwise; however, for decreasing cross-sections, a clockwise direction is possible. One manifestation of the vortexes is complex spatial profiles of the excitation rates and their constants on the periphery of the plasma volume.",
keywords = "Boltzmann equation, gas discharge, low-temperature plasma, nonlocal electron distribution function",
author = "C. Yuan and Bogdanov, {E. A.} and Kudryavtsev, {A. A.} and Z. Zhou",
year = "2018",
month = "4",
day = "25",
doi = "10.1088/1361-6595/aab75f",
language = "English",
volume = "27",
journal = "Plasma Sources Science and Technology",
issn = "0963-0252",
publisher = "IOP Publishing Ltd.",
number = "4",

}

Vortex electron flux and EDF nonlocality of moderate and high-pressure gas discharge plasmas. / Yuan, C.; Bogdanov, E. A.; Kudryavtsev, A. A.; Zhou, Z.

В: Plasma Sources Science and Technology, Том 27, № 4, 045007, 25.04.2018.

Результат исследований: Научные публикации в периодических изданияхстатья

TY - JOUR

T1 - Vortex electron flux and EDF nonlocality of moderate and high-pressure gas discharge plasmas

AU - Yuan, C.

AU - Bogdanov, E. A.

AU - Kudryavtsev, A. A.

AU - Zhou, Z.

PY - 2018/4/25

Y1 - 2018/4/25

N2 - Even at medium and high pressures, when the standard, commonly accepted in the literature as the criterion of the applicability of the local field approximation (LFA) L > λ ϵ is fulfilled, the ambipolar field is shown to be dominant on the periphery of plasma, which leads to the formation of a vortex motion of electrons on the phase plane and LFA non-applicability for the solution of the Boltzmann kinetic equation. The spinning direction of the vortex depends on the behavior of the momentum transfer cross sections. In most cases, the vortex rotates counterclockwise; however, for decreasing cross-sections, a clockwise direction is possible. One manifestation of the vortexes is complex spatial profiles of the excitation rates and their constants on the periphery of the plasma volume.

AB - Even at medium and high pressures, when the standard, commonly accepted in the literature as the criterion of the applicability of the local field approximation (LFA) L > λ ϵ is fulfilled, the ambipolar field is shown to be dominant on the periphery of plasma, which leads to the formation of a vortex motion of electrons on the phase plane and LFA non-applicability for the solution of the Boltzmann kinetic equation. The spinning direction of the vortex depends on the behavior of the momentum transfer cross sections. In most cases, the vortex rotates counterclockwise; however, for decreasing cross-sections, a clockwise direction is possible. One manifestation of the vortexes is complex spatial profiles of the excitation rates and their constants on the periphery of the plasma volume.

KW - Boltzmann equation

KW - gas discharge

KW - low-temperature plasma

KW - nonlocal electron distribution function

UR - http://www.scopus.com/inward/record.url?scp=85047327537&partnerID=8YFLogxK

U2 - 10.1088/1361-6595/aab75f

DO - 10.1088/1361-6595/aab75f

M3 - Article

AN - SCOPUS:85047327537

VL - 27

JO - Plasma Sources Science and Technology

JF - Plasma Sources Science and Technology

SN - 0963-0252

IS - 4

M1 - 045007

ER -