About: The Study of Ice Impurities Using the Environmental Scanning Electron Microscopy at Higher Pressures and Temperatures

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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)

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	Natural ice and snow accumulate and concentrate significant amounts of impurities that can be stored or chemically transformed, and eventually released to the environment. The location of impurities and their interactions with the water molecules of ice have not yet been sufficiently clarified. The aim of this work is to observe an uranyl-salt brine layer on the ice surface using a back scattered electron detection and the ice surface morphology using a secondary electron detection under equilibrium conditions in a specimen chamber of environmental scanning electron microscope (ESEM). Our specially modified ESEM AQUASEM II equipped with the YAG:Ce3+ backscattered electron detector, an ionization detector of secondary electrons, a special hydration system and a Peltier cooled stage was used. The pressures between 400-700 Pa, 50% water-vapor saturation, and the temperatures above 250 K were utilized in our experiments. At these conditions, the phenomena of etching and subsequent stripping of impurities are largely suppressed. Natural ice and snow accumulate and concentrate significant amounts of impurities that can be stored or chemically transformed, and eventually released to the environment. The location of impurities and their interactions with the water molecules of ice have not yet been sufficiently clarified. The aim of this work is to observe an uranyl-salt brine layer on the ice surface using a back scattered electron detection and the ice surface morphology using a secondary electron detection under equilibrium conditions in a specimen chamber of environmental scanning electron microscope (ESEM). Our specially modified ESEM AQUASEM II equipped with the YAG:Ce3+ backscattered electron detector, an ionization detector of secondary electrons, a special hydration system and a Peltier cooled stage was used. The pressures between 400-700 Pa, 50% water-vapor saturation, and the temperatures above 250 K were utilized in our experiments. At these conditions, the phenomena of etching and subsequent stripping of impurities are largely suppressed. (en)
Title	The Study of Ice Impurities Using the Environmental Scanning Electron Microscopy at Higher Pressures and Temperatures The Study of Ice Impurities Using the Environmental Scanning Electron Microscopy at Higher Pressures and Temperatures (en)
skos:prefLabel	The Study of Ice Impurities Using the Environmental Scanning Electron Microscopy at Higher Pressures and Temperatures The Study of Ice Impurities Using the Environmental Scanning Electron Microscopy at Higher Pressures and Temperatures (en)
skos:notation	RIV/68081731:_____/14:00434112!RIV15-GA0-68081731
http://linked.open...avai/riv/aktivita	I P
http://linked.open...avai/riv/aktivity	I, P(GA14-22777S)
http://linked.open...vai/riv/dodaniDat	2015
http://linked.open...aciTvurceVysledku	Neděla, Vilém Runštuk, Jiří
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	Ústav přístrojové techniky AV ČR, v. v. i.
http://linked.open...dnocenehoVysledku	48282
http://linked.open...ai/riv/idVysledku	RIV/68081731:_____/14:00434112
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	uranyl-salt; BSE; ESEM (en)
http://linked.open.../riv/klicoveSlovo	ESEM BSE uranyl-salt
http://linked.open...ontrolniKodProRIV	[3D124A20492E]
http://linked.open...v/mistoKonaniAkce	Praha
http://linked.open...i/riv/mistoVydani	Praha
http://linked.open...i/riv/nazevZdroje	18th International Microscopy Congres. Proceedings
http://linked.open...in/vavai/riv/obor	JA
http://linked.open...ichTvurcuVysledku	2 (xsd:int)
http://linked.open...cetTvurcuVysledku	4 (xsd:int)
http://linked.open...vavai/riv/projekt	Studium interakcí elektronů s plynem v podmínkách tlakového spádu nízkoenergiového environmentálního rastrovacího elektronového mikroskopu.
http://linked.open...UplatneniVysledku	2014
http://linked.open...iv/tvurceVysledku	Klán, P. Neděla, Vilém Heger, D. Runštuk, Jiří
http://linked.open...vavai/riv/typAkce	WRD - Světová
http://linked.open.../riv/zahajeniAkce	2014-09-07 (xsd:date)
number of pages	2 (xsd:int)
http://purl.org/ne...btex#hasPublisher	Czechoslovak Microscopy Society
https://schema.org/isbn	978-80-260-6720-7

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