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Statements

Subject Item
n2:RIV%2F00216305%3A26220%2F12%3APU98513%21RIV13-GA0-26220___
rdf:type
skos:Concept n12:Vysledek
rdfs:seeAlso
http://www.metrology.pg.gda.pl/full/2012/M&MS_2012_417.pdf
dcterms:description
Noise diagnostics has been performed on the cold field-emission cathode in high-vacuum. The tested cold fieldemission cathode, based on tungsten wire with ultra-sharp tip coated by epoxy was designed to meet the requirements of transmission electron microscopy, which uses a small and stable source of electrons. Current fluctuations are reduced by improving the structure and fabrication technology. Noise was measured both in time and frequency domains, which gives information about current fluctuations and also about charge transport. Mutual correlation between the noise spectral density, extractor voltage and beam brightness was analyzed. Noise diagnostics has been performed on the cold field-emission cathode in high-vacuum. The tested cold fieldemission cathode, based on tungsten wire with ultra-sharp tip coated by epoxy was designed to meet the requirements of transmission electron microscopy, which uses a small and stable source of electrons. Current fluctuations are reduced by improving the structure and fabrication technology. Noise was measured both in time and frequency domains, which gives information about current fluctuations and also about charge transport. Mutual correlation between the noise spectral density, extractor voltage and beam brightness was analyzed.
dcterms:title
Cold field-emission cathode noise analysis Cold field-emission cathode noise analysis
skos:prefLabel
Cold field-emission cathode noise analysis Cold field-emission cathode noise analysis
skos:notation
RIV/00216305:26220/12:PU98513!RIV13-GA0-26220___
n12:predkladatel
n19:orjk%3A26220
n3:aktivita
n8:S n8:P
n3:aktivity
P(ED2.1.00/03.0072), P(GAP102/11/0995), P(GD102/09/H074), S
n3:cisloPeriodika
2
n3:dodaniDat
n14:2013
n3:domaciTvurceVysledku
n4:2108585 n4:4427378 n4:9770690 n4:9346910
n3:druhVysledku
n5:J
n3:duvernostUdaju
n20:S
n3:entitaPredkladatele
n17:predkladatel
n3:idSjednocenehoVysledku
127619
n3:idVysledku
RIV/00216305:26220/12:PU98513
n3:jazykVysledku
n15:eng
n3:klicovaSlova
Keywords: cold field-emission cathode, noise diagnostics, epoxy coating.
n3:klicoveSlovo
n7:Keywords%3A%20cold%20field-emission%20cathode n7:noise%20diagnostics n7:epoxy%20coating.
n3:kodStatuVydavatele
GB - Spojené království Velké Británie a Severního Irska
n3:kontrolniKodProRIV
[46F1E73712A5]
n3:nazevZdroje
METROL MEAS SYST
n3:obor
n13:JA
n3:pocetDomacichTvurcuVysledku
4
n3:pocetTvurcuVysledku
4
n3:projekt
n18:GD102%2F09%2FH074 n18:GAP102%2F11%2F0995 n18:ED2.1.00%2F03.0072
n3:rokUplatneniVysledku
n14:2012
n3:svazekPeriodika
2012
n3:tvurceVysledku
Knápek, Alexandr Grmela, Lubomír Šikula, Josef Šik, Ondřej
s:issn
0860-8229
s:numberOfPages
6
n9:organizacniJednotka
26220