Formation of nonmonotonic profiles of densities and fluxes of charged particles and ambipolar field reversal in argon dusty plasmas

Chengxun Yuan, Jingfeng Yao, Dmitrii V. Bogdanov, Evgeniy A. Bogdanov, Anatoly A. Kudryavtsev, Zhongxiang Zhou

Результат исследований: Научные публикации в периодических изданияхстатья

Выдержка

In the present work, various scenarios of the spatial distributions of argon dusty plasma parameters are considered, focusing on the case of a large density of dust particles. It is shown that in this case a scenario with the inversion of the ambipolar field sign, considered in earlier studies by authors for plasma with heavy negative ions, can be realized. In this case, the ionization inside the dust cloud becomes small in comparison with the volume loss of charges inside the dust cloud, and the lack of charges is compensated by their arrival from the outer peripheral plasma region. This transition is accompanied by the phenomenon of the reversal of the sign of the radial electric field at the boundary of the dust cloud, and the formation of nonmonotonic profiles of the electron density with a shift of the maximum electron density from the center to the periphery. The radial stability of the dust particles cloud is provided by the balance of the increasing dust charge density gradient in the presence of the pushing out ambipolar field.

Язык оригиналаанглийский
Номер статьи095020
ЖурналPlasma Sources Science and Technology
Том28
Номер выпуска9
Ранняя дата в режиме онлайн29 июл 2019
DOI
СостояниеОпубликовано - 24 сен 2019

Отпечаток

argon plasma
dusty plasmas
charged particles
dust
profiles
pushing
negative ions
arrivals
heavy ions
spatial distribution
inversions
ionization
gradients
electric fields
shift

Цитировать

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title = "Formation of nonmonotonic profiles of densities and fluxes of charged particles and ambipolar field reversal in argon dusty plasmas",
abstract = "In the present work, various scenarios of the spatial distributions of argon dusty plasma parameters are considered, focusing on the case of a large density of dust particles. It is shown that in this case a scenario with the inversion of the ambipolar field sign, considered in earlier studies by authors for plasma with heavy negative ions, can be realized. In this case, the ionization inside the dust cloud becomes small in comparison with the volume loss of charges inside the dust cloud, and the lack of charges is compensated by their arrival from the outer peripheral plasma region. This transition is accompanied by the phenomenon of the reversal of the sign of the radial electric field at the boundary of the dust cloud, and the formation of nonmonotonic profiles of the electron density with a shift of the maximum electron density from the center to the periphery. The radial stability of the dust particles cloud is provided by the balance of the increasing dust charge density gradient in the presence of the pushing out ambipolar field.",
keywords = "DC discharge, DIFFUSIVE DECAY, GLOW-DISCHARGE, POSITIVE-COLUMN, argon, dusty plasma, electric field reversal, glow discharge plasma, numerical simulation",
author = "Chengxun Yuan and Jingfeng Yao and Bogdanov, {Dmitrii V.} and Bogdanov, {Evgeniy A.} and Kudryavtsev, {Anatoly A.} and Zhongxiang Zhou",
year = "2019",
month = "9",
day = "24",
doi = "10.1088/1361-6595/ab369c",
language = "English",
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journal = "Plasma Sources Science and Technology",
issn = "0963-0252",
publisher = "IOP Publishing Ltd.",
number = "9",

}

Formation of nonmonotonic profiles of densities and fluxes of charged particles and ambipolar field reversal in argon dusty plasmas. / Yuan, Chengxun; Yao, Jingfeng; Bogdanov, Dmitrii V. ; Bogdanov, Evgeniy A. ; Kudryavtsev, Anatoly A. ; Zhou, Zhongxiang.

В: Plasma Sources Science and Technology, Том 28, № 9, 095020, 24.09.2019.

Результат исследований: Научные публикации в периодических изданияхстатья

TY - JOUR

T1 - Formation of nonmonotonic profiles of densities and fluxes of charged particles and ambipolar field reversal in argon dusty plasmas

AU - Yuan, Chengxun

AU - Yao, Jingfeng

AU - Bogdanov, Dmitrii V.

AU - Bogdanov, Evgeniy A.

AU - Kudryavtsev, Anatoly A.

AU - Zhou, Zhongxiang

PY - 2019/9/24

Y1 - 2019/9/24

N2 - In the present work, various scenarios of the spatial distributions of argon dusty plasma parameters are considered, focusing on the case of a large density of dust particles. It is shown that in this case a scenario with the inversion of the ambipolar field sign, considered in earlier studies by authors for plasma with heavy negative ions, can be realized. In this case, the ionization inside the dust cloud becomes small in comparison with the volume loss of charges inside the dust cloud, and the lack of charges is compensated by their arrival from the outer peripheral plasma region. This transition is accompanied by the phenomenon of the reversal of the sign of the radial electric field at the boundary of the dust cloud, and the formation of nonmonotonic profiles of the electron density with a shift of the maximum electron density from the center to the periphery. The radial stability of the dust particles cloud is provided by the balance of the increasing dust charge density gradient in the presence of the pushing out ambipolar field.

AB - In the present work, various scenarios of the spatial distributions of argon dusty plasma parameters are considered, focusing on the case of a large density of dust particles. It is shown that in this case a scenario with the inversion of the ambipolar field sign, considered in earlier studies by authors for plasma with heavy negative ions, can be realized. In this case, the ionization inside the dust cloud becomes small in comparison with the volume loss of charges inside the dust cloud, and the lack of charges is compensated by their arrival from the outer peripheral plasma region. This transition is accompanied by the phenomenon of the reversal of the sign of the radial electric field at the boundary of the dust cloud, and the formation of nonmonotonic profiles of the electron density with a shift of the maximum electron density from the center to the periphery. The radial stability of the dust particles cloud is provided by the balance of the increasing dust charge density gradient in the presence of the pushing out ambipolar field.

KW - DC discharge

KW - DIFFUSIVE DECAY

KW - GLOW-DISCHARGE

KW - POSITIVE-COLUMN

KW - argon

KW - dusty plasma

KW - electric field reversal

KW - glow discharge plasma

KW - numerical simulation

UR - https://proxy.library.spbu.ru:2310/article/10.1088/1361-6595/ab369c

UR - http://www.mendeley.com/research/formation-nonmonotonic-profiles-densities-fluxes-charged-particles-ambipolar-field-reversal-argon-du

U2 - 10.1088/1361-6595/ab369c

DO - 10.1088/1361-6595/ab369c

M3 - Article

VL - 28

JO - Plasma Sources Science and Technology

JF - Plasma Sources Science and Technology

SN - 0963-0252

IS - 9

M1 - 095020

ER -