About: Emission Current Fluctuations vs. Beam Lightning of the Field-Emission Cathode

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	Paper deals with noise diagnostics which was performed on the cold field emission cathode in high-vacuum conditions (HV). Used cold field-emission cathode is designed to be used in low-voltage TEM, and is based on tungsten cathode with ultra-sharp nano-tip. The cathode is additionally coated by epoxy resin to stabilize the emission current, providing small and stable source of electrons. Technological issues are further examined by the means of the noise diagnostics, which provides information about carrier transport and cathode performance in general. The analysis was performed both in time and frequency domain. Mutual correlation between the current noise spectral-density, extractor voltage, beam brightness and Allan dispersion were analyzed, together with the main sources of noise. Paper deals with noise diagnostics which was performed on the cold field emission cathode in high-vacuum conditions (HV). Used cold field-emission cathode is designed to be used in low-voltage TEM, and is based on tungsten cathode with ultra-sharp nano-tip. The cathode is additionally coated by epoxy resin to stabilize the emission current, providing small and stable source of electrons. Technological issues are further examined by the means of the noise diagnostics, which provides information about carrier transport and cathode performance in general. The analysis was performed both in time and frequency domain. Mutual correlation between the current noise spectral-density, extractor voltage, beam brightness and Allan dispersion were analyzed, together with the main sources of noise. (en)
Title	Emission Current Fluctuations vs. Beam Lightning of the Field-Emission Cathode Emission Current Fluctuations vs. Beam Lightning of the Field-Emission Cathode (en)
skos:prefLabel	Emission Current Fluctuations vs. Beam Lightning of the Field-Emission Cathode Emission Current Fluctuations vs. Beam Lightning of the Field-Emission Cathode (en)
skos:notation	RIV/00216305:26220/12:PU98285!RIV13-GA0-26220___
http://linked.open...avai/riv/aktivita	P
http://linked.open...avai/riv/aktivity	P(GAP102/11/0995), P(GD102/09/H074)
http://linked.open...vai/riv/dodaniDat	2013
http://linked.open...aciTvurceVysledku	Knápek, Alexandr
http://linked.open.../riv/druhVysledku	D - Článek ve sborníku
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	134193
http://linked.open...ai/riv/idVysledku	RIV/00216305:26220/12:PU98285
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	field emission stability, tungsten cathodes, Allan dispersion (en)
http://linked.open.../riv/klicoveSlovo	Allan dispersion field emission stability tungsten cathodes
http://linked.open...ontrolniKodProRIV	[5A5D145CDF11]
http://linked.open...v/mistoKonaniAkce	Brno
http://linked.open...i/riv/mistoVydani	Brno
http://linked.open...i/riv/nazevZdroje	Student EEICT - Proceedings of the 18th Conference vol.3
http://linked.open...in/vavai/riv/obor	BM
http://linked.open...ichTvurcuVysledku	1 (xsd:int)
http://linked.open...cetTvurcuVysledku	1 (xsd:int)
http://linked.open...vavai/riv/projekt	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...iv/tvurceVysledku	Knápek, Alexandr
http://linked.open...vavai/riv/typAkce	CST - Celostátní
http://linked.open.../riv/zahajeniAkce	2012-04-26 (xsd:date)
number of pages	5 (xsd:int)
http://purl.org/ne...btex#hasPublisher	Litera Brno
https://schema.org/isbn	978-80-214-4462-1
http://localhost/t...ganizacniJednotka	26220

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