About: Cold field-emission cathode noise analysis

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An Entity of Type : http://linked.opendata.cz/ontology/domain/vavai/Vysledek, within Data Space : linked.opendata.cz associated with source document(s)

Attributes	Values
rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
rdfs:seeAlso	http://www.metrology.pg.gda.pl/full/2012/M&MS_2012_417.pdf
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. (en)
Title	Cold field-emission cathode noise analysis Cold field-emission cathode noise analysis (en)
skos:prefLabel	Cold field-emission cathode noise analysis Cold field-emission cathode noise analysis (en)
skos:notation	RIV/00216305:26220/12:PU98513!RIV13-GA0-26220___
http://linked.open...avai/riv/aktivita	P S
http://linked.open...avai/riv/aktivity	P(ED2.1.00/03.0072), P(GAP102/11/0995), P(GD102/09/H074), S
http://linked.open...iv/cisloPeriodika	2
http://linked.open...vai/riv/dodaniDat	2013
http://linked.open...aciTvurceVysledku	Knápek, Alexandr Grmela, Lubomír Šik, Ondřej Šikula, Josef
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Vysoké učení technické v Brně / Fakulta elektrotechniky a komunikačních technologií
http://linked.open...dnocenehoVysledku	127619
http://linked.open...ai/riv/idVysledku	RIV/00216305:26220/12:PU98513
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	Keywords: cold field-emission cathode, noise diagnostics, epoxy coating. (en)
http://linked.open.../riv/klicoveSlovo	Keywords: cold field-emission cathode epoxy coating. noise diagnostics
http://linked.open...odStatuVydavatele	GB - Spojené království Velké Británie a Severního Irska
http://linked.open...ontrolniKodProRIV	[46F1E73712A5]
http://linked.open...i/riv/nazevZdroje	METROL MEAS SYST
http://linked.open...in/vavai/riv/obor	JA
http://linked.open...ichTvurcuVysledku	4 (xsd:int)
http://linked.open...cetTvurcuVysledku	4 (xsd:int)
http://linked.open...vavai/riv/projekt	Centre of sensor, information and communication systems Electron transport, Noise and Diagnostic of Shottky and Autoemission Cathodes Diagnostics of material defects using the latest defectoscopic methods
http://linked.open...UplatneniVysledku	2012
http://linked.open...v/svazekPeriodika	2012
http://linked.open...iv/tvurceVysledku	Grmela, Lubomír Knápek, Alexandr Šikula, Josef Šik, Ondřej
issn	0860-8229
number of pages	6 (xsd:int)
http://localhost/t...ganizacniJednotka	26220

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