About: Sputtering of Glass Dust Grain by Ions and Electrons

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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/pdf14/WDS14_64_f2_Vysinka.pdf
Description	Glass (SiO2) is sputtered not only by ion impact, but the sputtering yield can be enhanced by electron impact as well. In the case of small silicate dust grains in the space environment, such eects can in uence the lifetime of the grains. Moreover, there is a suggestion that electric eld could further enhance the sputtering yield from charged non-conducting grains. To reveal these eects, we performed experiments with a single dust grain levitated in an electrodynamic quadrupole trap. As a representative of silicate-type space dust, we used spherical SiO2 grains with diameters around 1 micron. The grain in the trap was bombarded by 2-keV Ar+ ions and 1-keV electrons. The sputtering yield of the ion-only bombardment (i.e., at a high surface eld) was 1.4 SiO2/ion, in the case of a combined ion and electron bombardment, the yield was 1.5 SiO2/ion, i.e., slightly higher. Glass (SiO2) is sputtered not only by ion impact, but the sputtering yield can be enhanced by electron impact as well. In the case of small silicate dust grains in the space environment, such eects can in uence the lifetime of the grains. Moreover, there is a suggestion that electric eld could further enhance the sputtering yield from charged non-conducting grains. To reveal these eects, we performed experiments with a single dust grain levitated in an electrodynamic quadrupole trap. As a representative of silicate-type space dust, we used spherical SiO2 grains with diameters around 1 micron. The grain in the trap was bombarded by 2-keV Ar+ ions and 1-keV electrons. The sputtering yield of the ion-only bombardment (i.e., at a high surface eld) was 1.4 SiO2/ion, in the case of a combined ion and electron bombardment, the yield was 1.5 SiO2/ion, i.e., slightly higher. (en)
Title	Sputtering of Glass Dust Grain by Ions and Electrons Sputtering of Glass Dust Grain by Ions and Electrons (en)
skos:prefLabel	Sputtering of Glass Dust Grain by Ions and Electrons Sputtering of Glass Dust Grain by Ions and Electrons (en)
skos:notation	RIV/00216208:11320/14:10290834!RIV15-MSM-11320___
http://linked.open...avai/riv/aktivita	I S
http://linked.open...avai/riv/aktivity	I, S
http://linked.open...vai/riv/dodaniDat	2015
http://linked.open...aciTvurceVysledku	Šafránková, Jana Pavlů, Jiří Vyšinka, Marek Vaverka, Jakub Němeček, Zdeněk
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	46867
http://linked.open...ai/riv/idVysledku	RIV/00216208:11320/14:10290834
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	Glass dust; Sputtering yield (en)
http://linked.open.../riv/klicoveSlovo	Glass dust Sputtering yield
http://linked.open...ontrolniKodProRIV	[98142FC736DF]
http://linked.open...v/mistoKonaniAkce	Praha
http://linked.open...i/riv/mistoVydani	Praha
http://linked.open...i/riv/nazevZdroje	WDS 2014 - Proceedings of Contributed Papers - Physics
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	2014
http://linked.open...iv/tvurceVysledku	Němeček, Zdeněk Pavlů, Jiří Vaverka, Jakub Vyšinka, Marek Šafránková, Jana
http://linked.open...vavai/riv/typAkce	EUR - Evropská
http://linked.open.../riv/zahajeniAkce	2014-06-03 (xsd:date)
number of pages	7 (xsd:int)
http://purl.org/ne...btex#hasPublisher	Matfyzpress
https://schema.org/isbn	978-80-7378-276-4
http://localhost/t...ganizacniJednotka	11320

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