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Statements

Subject Item
n2:RIV%2F00216208%3A11320%2F09%3A00207330%21RIV10-GA0-11320___
rdf:type
skos:Concept n21:Vysledek
dcterms:description
We have investigated the charging of spherical glassy carbon grains of 3 to 6 micrometers in diameter under the influence of high energy electron bombardment. The single grain is trapped in the electrodynamic quadrupole trap and hold there for a long time (up to days). The grain is isolated and therefore its charge can be altered by impinging and leaving electrons only. We are able to continuously monitor the grain charge and we can determine the net current on the grain. We have measured the secondary electron-electron emission yield and we have observed the increase of the yield that was attributed to the electric field at the surface of the grain. The relation between the measured yield and primary energy follows the universal curve suggested by Draine (1979) and the total yield increases with square root of the surface electric field according to our results. We have investigated the charging of spherical glassy carbon grains of 3 to 6 micrometers in diameter under the influence of high energy electron bombardment. The single grain is trapped in the electrodynamic quadrupole trap and hold there for a long time (up to days). The grain is isolated and therefore its charge can be altered by impinging and leaving electrons only. We are able to continuously monitor the grain charge and we can determine the net current on the grain. We have measured the secondary electron-electron emission yield and we have observed the increase of the yield that was attributed to the electric field at the surface of the grain. The relation between the measured yield and primary energy follows the universal curve suggested by Draine (1979) and the total yield increases with square root of the surface electric field according to our results.
dcterms:title
Field Enhanced Secondary Electron Emission on Glassy Carbon Grains Field Enhanced Secondary Electron Emission on Glassy Carbon Grains
skos:prefLabel
Field Enhanced Secondary Electron Emission on Glassy Carbon Grains Field Enhanced Secondary Electron Emission on Glassy Carbon Grains
skos:notation
RIV/00216208:11320/09:00207330!RIV10-GA0-11320___
n3:aktivita
n16:Z n16:S n16:P
n3:aktivity
P(GA202/08/0063), P(GD202/08/H057), S, Z(MSM0021620860)
n3:dodaniDat
n12:2010
n3:domaciTvurceVysledku
n4:9622683 n4:5876265 n4:1504126 n4:6429106
n3:druhVysledku
n20:D
n3:duvernostUdaju
n11:S
n3:entitaPredkladatele
n14:predkladatel
n3:idSjednocenehoVysledku
314925
n3:idVysledku
RIV/00216208:11320/09:00207330
n3:jazykVysledku
n19:eng
n3:klicovaSlova
Field; Enhanced; Secondary; Electron; Emission; Glassy; Carbon; Grains
n3:klicoveSlovo
n7:Emission n7:Field n7:Glassy n7:Carbon n7:Electron n7:Enhanced n7:Grains n7:Secondary
n3:kontrolniKodProRIV
[03ED662F8975]
n3:mistoKonaniAkce
Prague
n3:mistoVydani
Prague
n3:nazevZdroje
WDS´09 Proceedings of Contributed Papers: Part II - Physics of Plasmas and Ionized Media
n3:obor
n22:BL
n3:pocetDomacichTvurcuVysledku
4
n3:pocetTvurcuVysledku
4
n3:projekt
n17:GD202%2F08%2FH057 n17:GA202%2F08%2F0063
n3:rokUplatneniVysledku
n12:2009
n3:tvurceVysledku
Beránek, Martin Němeček, Zdeněk Richterová, Ivana Šafránková, Jana
n3:typAkce
n5:EUR
n3:zahajeniAkce
2009-01-01+01:00
n3:zamer
n8:MSM0021620860
s:numberOfPages
7
n9:hasPublisher
Matfyzpress
n10:isbn
978-80-7378-102-6
n15:organizacniJednotka
11320