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Statements

Subject Item
n2:RIV%2F00216208%3A11320%2F14%3A10290834%21RIV15-MSM-11320___
rdf:type
skos:Concept n10:Vysledek
rdfs:seeAlso
http://www.mff.cuni.cz/veda/konference/wds/proc/pdf14/WDS14_64_f2_Vysinka.pdf
dcterms: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.
dcterms:title
Sputtering of Glass Dust Grain by Ions and Electrons Sputtering of Glass Dust Grain by Ions and Electrons
skos:prefLabel
Sputtering of Glass Dust Grain by Ions and Electrons Sputtering of Glass Dust Grain by Ions and Electrons
skos:notation
RIV/00216208:11320/14:10290834!RIV15-MSM-11320___
n4:aktivita
n11:S n11:I
n4:aktivity
I, S
n4:dodaniDat
n17:2015
n4:domaciTvurceVysledku
n5:3875563 n5:5876265 n5:3672220 n5:1973282 n5:1504126
n4:druhVysledku
n19:D
n4:duvernostUdaju
n8:S
n4:entitaPredkladatele
n21:predkladatel
n4:idSjednocenehoVysledku
46867
n4:idVysledku
RIV/00216208:11320/14:10290834
n4:jazykVysledku
n16:eng
n4:klicovaSlova
Glass dust; Sputtering yield
n4:klicoveSlovo
n6:Sputtering%20yield n6:Glass%20dust
n4:kontrolniKodProRIV
[98142FC736DF]
n4:mistoKonaniAkce
Praha
n4:mistoVydani
Praha
n4:nazevZdroje
WDS 2014 - Proceedings of Contributed Papers - Physics
n4:obor
n9:BL
n4:pocetDomacichTvurcuVysledku
5
n4:pocetTvurcuVysledku
5
n4:rokUplatneniVysledku
n17:2014
n4:tvurceVysledku
Vyšinka, Marek Němeček, Zdeněk Šafránková, Jana Pavlů, Jiří Vaverka, Jakub
n4:typAkce
n18:EUR
n4:zahajeniAkce
2014-06-03+02:00
s:numberOfPages
7
n15:hasPublisher
Matfyzpress
n7:isbn
978-80-7378-276-4
n14:organizacniJednotka
11320