About: Numerical Calculation of an Equilibrium Dust Grain Potential in Lunar Environment

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An Entity of Type : http://linked.opendata.cz/ontology/domain/vavai/Vysledek, within Data Space : linked.opendata.cz associated with source document(s)

Attributes	Values
rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
rdfs:seeAlso	http://www.mff.cuni.cz/veda/konference/wds/proc/pdf12/WDS12_227_f2_Vaverka.pdf
Description	Dust coexists with plasma of various parameters in space as well as in laboratories and industrial facilities. The mutual interaction of plasma particles with dust grains leads to their charging. An equilibrium grain potential depends on plasma environment as well as on the grain composition, size, shape, and history. A precise estimation of an equilibrium grain potential in a specific plasma environment can be thus complicated. We present results of a new numerical method for calculation of an equilibrium potential of the grain immersed in the plasma simulating a lunar environment where an influence of secondary electron emission by energetic electrons increases during the Earth plasma sheet crossings. In calculations, we apply a modified model of secondary electron emission for dust grains which takes into account an influence of grain size, material, and surface roughness. Since this model describes the increase of the secondary emission yield caused by a finite dimension of the dust grain, our calculations provide a more realistic estimation of the dust grain charge in hot environments. Dust coexists with plasma of various parameters in space as well as in laboratories and industrial facilities. The mutual interaction of plasma particles with dust grains leads to their charging. An equilibrium grain potential depends on plasma environment as well as on the grain composition, size, shape, and history. A precise estimation of an equilibrium grain potential in a specific plasma environment can be thus complicated. We present results of a new numerical method for calculation of an equilibrium potential of the grain immersed in the plasma simulating a lunar environment where an influence of secondary electron emission by energetic electrons increases during the Earth plasma sheet crossings. In calculations, we apply a modified model of secondary electron emission for dust grains which takes into account an influence of grain size, material, and surface roughness. Since this model describes the increase of the secondary emission yield caused by a finite dimension of the dust grain, our calculations provide a more realistic estimation of the dust grain charge in hot environments. (en)
Title	Numerical Calculation of an Equilibrium Dust Grain Potential in Lunar Environment Numerical Calculation of an Equilibrium Dust Grain Potential in Lunar Environment (en)
skos:prefLabel	Numerical Calculation of an Equilibrium Dust Grain Potential in Lunar Environment Numerical Calculation of an Equilibrium Dust Grain Potential in Lunar Environment (en)
skos:notation	RIV/00216208:11320/12:10133184!RIV13-MSM-11320___
http://linked.open...avai/predkladatel	Matematicko-fyzikální fakulta
http://linked.open...avai/riv/aktivita	S
http://linked.open...avai/riv/aktivity	S
http://linked.open...vai/riv/dodaniDat	2013
http://linked.open...aciTvurceVysledku	Šafránková, Jana Pavlů, Jiří Vaverka, Jakub Němeček, Zdeněk Richterová, Ivana
http://linked.open.../riv/druhVysledku	D - Článek ve sborníku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Univerzita Karlova v Praze / Matematicko-fyzikální fakulta
http://linked.open...dnocenehoVysledku	154993
http://linked.open...ai/riv/idVysledku	RIV/00216208:11320/12:10133184
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	Lunar environment; Surface potential; Dust (en)
http://linked.open.../riv/klicoveSlovo	Dust Lunar environment Surface potential
http://linked.open...ontrolniKodProRIV	[C73D0100952A]
http://linked.open...v/mistoKonaniAkce	Praha
http://linked.open...i/riv/mistoVydani	Praha
http://linked.open...i/riv/nazevZdroje	WDS'12 Proceedings of Contributed Papers: Part II - Physics of Plasmas and Ionized Media
http://linked.open...in/vavai/riv/obor	BL
http://linked.open...ichTvurcuVysledku	5 (xsd:int)
http://linked.open...cetTvurcuVysledku	5 (xsd:int)
http://linked.open...UplatneniVysledku	2012
http://linked.open...iv/tvurceVysledku	Němeček, Zdeněk Pavlů, Jiří Richterová, Ivana Vaverka, Jakub Šafránková, Jana
http://linked.open...vavai/riv/typAkce	EUR - Evropská
http://linked.open.../riv/zahajeniAkce	2012-05-29 (xsd:date)
number of pages	7 (xsd:int)
http://purl.org/ne...btex#hasPublisher	Matfyzpress
https://schema.org/isbn	978-80-7378-225-2
http://localhost/t...ganizacniJednotka	11320
is http://linked.open...avai/riv/vysledek of	Numerical Calculation of an Equilibrium Dust Grain Potential in Lunar Environment

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