About: Investigations of the Photoemission from Glass Dust Grains

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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.mff.cuni.cz/veda/konference/wds/proc/pdf14/WDS14_63_f2_Nouzak.pdf
Description	Dust grains are present on the surface of the Moon and can be charged by particles from the Sun (photons, electrons, and ions). We present laboratory measurements of photoemission from a single glass grain of micron size (a lunar analogue material). The grain is caught in the electrodynamic trap and irradiated by UV source with distinct He I (21.2 eV) and He II (40.8 eV) lines. The grain specific charge is evaluated from the grain oscillation frequency in the electrodynamic trap. In our measurements, we determine grain surface potential,its size, and work function from the time evolution of the charging by He I and He II photons. First results indicate that the work function of the glass grain is about 4.7 eV. Dust grains are present on the surface of the Moon and can be charged by particles from the Sun (photons, electrons, and ions). We present laboratory measurements of photoemission from a single glass grain of micron size (a lunar analogue material). The grain is caught in the electrodynamic trap and irradiated by UV source with distinct He I (21.2 eV) and He II (40.8 eV) lines. The grain specific charge is evaluated from the grain oscillation frequency in the electrodynamic trap. In our measurements, we determine grain surface potential,its size, and work function from the time evolution of the charging by He I and He II photons. First results indicate that the work function of the glass grain is about 4.7 eV. (en)
Title	Investigations of the Photoemission from Glass Dust Grains Investigations of the Photoemission from Glass Dust Grains (en)
skos:prefLabel	Investigations of the Photoemission from Glass Dust Grains Investigations of the Photoemission from Glass Dust Grains (en)
skos:notation	RIV/00216208:11320/14:10290833!RIV15-MSM-11320___
http://linked.open...avai/riv/aktivita	I P S
http://linked.open...avai/riv/aktivity	I, P(GAP209/11/1412), S
http://linked.open...vai/riv/dodaniDat	2015
http://linked.open...aciTvurceVysledku	Nouzák, Libor Šafránková, Jana Pavlů, Jiří Němeček, Zdeněk Richterová, Ivana
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	Univerzita Karlova v Praze / Matematicko-fyzikální fakulta
http://linked.open...dnocenehoVysledku	22785
http://linked.open...ai/riv/idVysledku	RIV/00216208:11320/14:10290833
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	Glass dust; UV Photoemission (en)
http://linked.open.../riv/klicoveSlovo	Glass dust UV Photoemission
http://linked.open...ontrolniKodProRIV	[7EF703D58C04]
http://linked.open...v/mistoKonaniAkce	Praha
http://linked.open...i/riv/mistoVydani	Praha
http://linked.open...i/riv/nazevZdroje	WDS 2014 - Proceedings of Contributed Papers - Physics
http://linked.open...in/vavai/riv/obor	BL
http://linked.open...ichTvurcuVysledku	5 (xsd:int)
http://linked.open...cetTvurcuVysledku	5 (xsd:int)
http://linked.open...vavai/riv/projekt	Dust and its charging in the space: Laboratory simulations
http://linked.open...UplatneniVysledku	2014
http://linked.open...iv/tvurceVysledku	Němeček, Zdeněk Pavlů, Jiří Richterová, Ivana Šafránková, Jana Nouzák, Libor
http://linked.open...vavai/riv/typAkce	EUR - Evropská
http://linked.open.../riv/zahajeniAkce	2014-06-03 (xsd:date)
number of pages	10 (xsd:int)
http://purl.org/ne...btex#hasPublisher	Matfyzpress
https://schema.org/isbn	978-80-7378-276-4
http://localhost/t...ganizacniJednotka	11320

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