About the photoemission of electrons from the surface of a spherical dust particle in gas discharge plasma

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About the photoemission of electrons from the surface of a spherical dust particle in gas discharge plasma. / Siasko, A. V.; Golubovskii, Yu B.; Karasev, V. Yu.

In: Plasma Sources Science and Technology, Vol. 30, No. 6, 065030, 06.2021.

Research output: Contribution to journal › Article › peer-review

BibTeX

@article{8c21f6ce530a40498ac1dbf3581411f8,

title = "About the photoemission of electrons from the surface of a spherical dust particle in gas discharge plasma",

abstract = "The work is devoted to the calculation of the flux of resonance photons from the volume of gas discharge plasma of cylindrical and spherical geometries onto the surface of a spherical dust particle, which determines the photoemission from the particle surface. The flux of resonance photons is calculated with the account of the radiation trapping. This problem has been considered for the first time. It is shown that in the case of a cylindrical plasma volume, the flux density of resonance photons saturates at a column length of about ten discharge tube radii. In plasma of a spherical volume, the flux increases with an increase in the plasma radius. The equations that allow calculating these fluxes for micron-sized particles are shown in a lucid form. The fluxes of resonance photons, electrons, and metastable atoms are compared for typical conditions of dusty plasma in a glow discharge. It is shown that under the real discharge conditions the flux density of resonance photons can be comparable or even exceed the fluxes of charged particles and metastable atoms.",

keywords = "dust particle charging, dusty plasma, glow discharge, photoelectron emission, resonance radiation transport, GRAINS",

author = "Siasko, {A. V.} and Golubovskii, {Yu B.} and Karasev, {V. Yu}",

note = "Publisher Copyright: {\textcopyright} 2021 IOP Publishing Ltd.",

year = "2021",

month = jun,

doi = "10.1088/1361-6595/ac0a49",

language = "English",

volume = "30",

journal = "Plasma Sources Science and Technology",

issn = "0963-0252",

publisher = "IOP Publishing Ltd.",

number = "6",

}

RIS

TY - JOUR

T1 - About the photoemission of electrons from the surface of a spherical dust particle in gas discharge plasma

AU - Siasko, A. V.

AU - Golubovskii, Yu B.

AU - Karasev, V. Yu

PY - 2021/6

Y1 - 2021/6

N2 - The work is devoted to the calculation of the flux of resonance photons from the volume of gas discharge plasma of cylindrical and spherical geometries onto the surface of a spherical dust particle, which determines the photoemission from the particle surface. The flux of resonance photons is calculated with the account of the radiation trapping. This problem has been considered for the first time. It is shown that in the case of a cylindrical plasma volume, the flux density of resonance photons saturates at a column length of about ten discharge tube radii. In plasma of a spherical volume, the flux increases with an increase in the plasma radius. The equations that allow calculating these fluxes for micron-sized particles are shown in a lucid form. The fluxes of resonance photons, electrons, and metastable atoms are compared for typical conditions of dusty plasma in a glow discharge. It is shown that under the real discharge conditions the flux density of resonance photons can be comparable or even exceed the fluxes of charged particles and metastable atoms.

AB - The work is devoted to the calculation of the flux of resonance photons from the volume of gas discharge plasma of cylindrical and spherical geometries onto the surface of a spherical dust particle, which determines the photoemission from the particle surface. The flux of resonance photons is calculated with the account of the radiation trapping. This problem has been considered for the first time. It is shown that in the case of a cylindrical plasma volume, the flux density of resonance photons saturates at a column length of about ten discharge tube radii. In plasma of a spherical volume, the flux increases with an increase in the plasma radius. The equations that allow calculating these fluxes for micron-sized particles are shown in a lucid form. The fluxes of resonance photons, electrons, and metastable atoms are compared for typical conditions of dusty plasma in a glow discharge. It is shown that under the real discharge conditions the flux density of resonance photons can be comparable or even exceed the fluxes of charged particles and metastable atoms.

KW - dust particle charging

KW - dusty plasma

KW - glow discharge

KW - photoelectron emission

KW - resonance radiation transport

KW - GRAINS

UR - http://www.scopus.com/inward/record.url?scp=85110038530&partnerID=8YFLogxK

UR - https://www.mendeley.com/catalogue/91b41ee9-676a-323a-b6a2-9f48ca409126/

U2 - 10.1088/1361-6595/ac0a49

DO - 10.1088/1361-6595/ac0a49

M3 - Article

AN - SCOPUS:85110038530

VL - 30

JO - Plasma Sources Science and Technology

JF - Plasma Sources Science and Technology

SN - 0963-0252

IS - 6

M1 - 065030

ER -

ID: 87738248