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Statements

Subject Item
n2:RIV%2F00216305%3A26220%2F11%3APU92849%21RIV12-MSM-26220___
rdf:type
skos:Concept n5:Vysledek
dcterms:description
The paper deals with a spectroscopic method intended for characterization of virgin oxide and resin-coated cold emission cathodes. The noise spectroscopy in time and frequency domain is based on measuring cathode voltage noise, in ultrahigh vacuum conditions ~ 2 x 10-5 Pa. These conditions are required in order to avoid environment interaction with ions, which are present in the vacuum chamber, and also to reduce the influence of the electron- induced desorption and adsorption, which poses one of the significant noise sources. For these experiments, cold cathode with epoxy-resin coating was prepared. A comprehensive investigation was carried out to determine particular noise sources and to compare clean cathodes with the resin-coated one, in order to describe influence of the oxide and dielectric epoxy layer on to the emission current stability. Spectra obtained, for various emission currents at different voltages, are described and explained. The results suggest that the resin-layer changes cathode p The paper deals with a spectroscopic method intended for characterization of virgin oxide and resin-coated cold emission cathodes. The noise spectroscopy in time and frequency domain is based on measuring cathode voltage noise, in ultrahigh vacuum conditions ~ 2 x 10-5 Pa. These conditions are required in order to avoid environment interaction with ions, which are present in the vacuum chamber, and also to reduce the influence of the electron- induced desorption and adsorption, which poses one of the significant noise sources. For these experiments, cold cathode with epoxy-resin coating was prepared. A comprehensive investigation was carried out to determine particular noise sources and to compare clean cathodes with the resin-coated one, in order to describe influence of the oxide and dielectric epoxy layer on to the emission current stability. Spectra obtained, for various emission currents at different voltages, are described and explained. The results suggest that the resin-layer changes cathode p
dcterms:title
Noise of Cold Emission Cathode Noise of Cold Emission Cathode
skos:prefLabel
Noise of Cold Emission Cathode Noise of Cold Emission Cathode
skos:notation
RIV/00216305:26220/11:PU92849!RIV12-MSM-26220___
n5:predkladatel
n6:orjk%3A26220
n3:aktivita
n11:S n11:P
n3:aktivity
P(GAP102/11/0995), S
n3:dodaniDat
n13:2012
n3:domaciTvurceVysledku
n10:2108585 n10:6039618 n10:9770690 n10:4427378
n3:druhVysledku
n22:D
n3:duvernostUdaju
n19:S
n3:entitaPredkladatele
n9:predkladatel
n3:idSjednocenehoVysledku
216146
n3:idVysledku
RIV/00216305:26220/11:PU92849
n3:jazykVysledku
n4:eng
n3:klicovaSlova
Noise spectroscopy, cold emission cathode, resin coated cathodes
n3:klicoveSlovo
n12:resin%20coated%20cathodes n12:cold%20emission%20cathode n12:Noise%20spectroscopy
n3:kontrolniKodProRIV
[AD6D7BA5CEE8]
n3:mistoKonaniAkce
Toronto, Kanada
n3:mistoVydani
Toronto, Kanada
n3:nazevZdroje
ICNF2011: 2011 21st International Conference on Noise and Fluctuations
n3:obor
n18:BM
n3:pocetDomacichTvurcuVysledku
4
n3:pocetTvurcuVysledku
5
n3:projekt
n21:GAP102%2F11%2F0995
n3:rokUplatneniVysledku
n13:2011
n3:tvurceVysledku
Holcman, Vladimír Grmela, Lubomír Delong, Armin Knápek, Alexandr Šikula, Josef
n3:typAkce
n14:WRD
n3:zahajeniAkce
2011-06-12+02:00
s:numberOfPages
4
n15:hasPublisher
IEEE
n17:isbn
978-1-4577-0191-7
n8:organizacniJednotka
26220