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Statements

Subject Item
n2:RIV%2F00216208%3A11320%2F09%3A00206357%21RIV10-GA0-11320___
rdf:type
n13:Vysledek skos:Concept
dcterms:description
Ion field emission from dust grains was studied using several glassy carbon grains of different radii from 1.64 to 2.97 $\mu$m as dust samples. Each grain was stored in a quadrupole trap under UHV conditions for a long time (days) and charged by argon ions to a high surface potential. When the ion gun was switched off the charged grain started to discharge spontaneously. We found out that the discharging process is a combination of field ionization and field desorption. A simple model for ion field emission was developed and the model results were compared with the measured data. Influence of the ion penetration depth on the field ion emission is discussed and compared with different measurements of ion diffusion and consecutive desorption of the implanted ions. Ion field emission from dust grains was studied using several glassy carbon grains of different radii from 1.64 to 2.97 $\mu$m as dust samples. Each grain was stored in a quadrupole trap under UHV conditions for a long time (days) and charged by argon ions to a high surface potential. When the ion gun was switched off the charged grain started to discharge spontaneously. We found out that the discharging process is a combination of field ionization and field desorption. A simple model for ion field emission was developed and the model results were compared with the measured data. Influence of the ion penetration depth on the field ion emission is discussed and compared with different measurements of ion diffusion and consecutive desorption of the implanted ions.
dcterms:title
Ion Field Emission from Micron-sized Carbon Dust Grains Ion Field Emission from Micron-sized Carbon Dust Grains
skos:prefLabel
Ion Field Emission from Micron-sized Carbon Dust Grains Ion Field Emission from Micron-sized Carbon Dust Grains
skos:notation
RIV/00216208:11320/09:00206357!RIV10-GA0-11320___
n3:aktivita
n5:Z n5:S n5:P
n3:aktivity
P(GA202/08/0063), S, Z(MSM0021620860)
n3:dodaniDat
n12:2010
n3:domaciTvurceVysledku
n9:3672220 n9:5876265 n9:6429106 n9:3875563 n9:1504126 n9:1973282
n3:druhVysledku
n18:D
n3:duvernostUdaju
n7:S
n3:entitaPredkladatele
n4:predkladatel
n3:idSjednocenehoVysledku
320387
n3:idVysledku
RIV/00216208:11320/09:00206357
n3:jazykVysledku
n17:eng
n3:klicovaSlova
Field; Emission; Micron-sized; Carbon; Grains
n3:klicoveSlovo
n6:Grains n6:Field n6:Emission n6:Carbon n6:Micron-sized
n3:kontrolniKodProRIV
[DB11019E191C]
n3:mistoKonaniAkce
Prague
n3:mistoVydani
Prague
n3:nazevZdroje
WDS´09 Proceedings of Contributed Papers: Part II - Physics of Plasmas and Ionized Media
n3:obor
n21:BL
n3:pocetDomacichTvurcuVysledku
6
n3:pocetTvurcuVysledku
6
n3:projekt
n19:GA202%2F08%2F0063
n3:rokUplatneniVysledku
n12:2009
n3:tvurceVysledku
Vyšinka, Marek Němeček, Zdeněk Beránek, Martin Pavlů, Jiří Vaverka, Jakub Šafránková, Jana
n3:typAkce
n14:EUR
n3:zahajeniAkce
2009-01-01+01:00
n3:zamer
n11:MSM0021620860
s:numberOfPages
7
n20:hasPublisher
Matfyzpress
n16:isbn
978-80-7378-102-6
n22:organizacniJednotka
11320