Self-discharging of Dust Grains by Ion Field Emission
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F11%3A10109815" target="_blank" >RIV/00216208:11320/11:10109815 - isvavai.cz</a>
Result on the web
<a href="http://www.mff.cuni.cz/veda/konference/wds/proc/pdf11/WDS11_217_f2_Beranek.pdf" target="_blank" >http://www.mff.cuni.cz/veda/konference/wds/proc/pdf11/WDS11_217_f2_Beranek.pdf</a>
DOI - Digital Object Identifier
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Alternative languages
Result language
angličtina
Original language name
Self-discharging of Dust Grains by Ion Field Emission
Original language description
Dust grains can be charged to a positive surface potential by various processes. Grains of irregular shapes can reach high surface field even with moderate potential and the electric field initiated self-discharging of such charged grains can be of a high importance for determination of its equilibrium charge. We have measured the self-discharging current from single positively charged glassy carbon dust grains trapped in the electrodynamic quadrupole under various conditions. The surface electric fieldwas in the range from 1 to 4 kV/?m. Measured increase of the current after implanting Ar ions into the grain indicates that the ionization probability of atoms leaving the grain surface is six orders of magnitude higher compared to the ionization of same atoms of surrounding gas.
Czech name
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Czech description
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Classification
Type
D - Article in proceedings
CEP classification
BL - Plasma physics and discharge through gases
OECD FORD branch
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Result continuities
Project
<a href="/en/project/GA202%2F08%2F0063" target="_blank" >GA202/08/0063: Laboratory simulations of elementary processes in dusty plasmas</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>Z - Vyzkumny zamer (s odkazem do CEZ)<br>S - Specificky vyzkum na vysokych skolach
Others
Publication year
2011
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Article name in the collection
WDS'11 Proceedings of Contributed Papers: Part II ? Physics of Plasmas and Ionized Media
ISBN
978-80-7378-185-9
ISSN
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e-ISSN
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Number of pages
9
Pages from-to
102-110
Publisher name
Matfyzpress
Place of publication
Praha
Event location
Praha
Event date
May 31, 2011
Type of event by nationality
EUR - Evropská akce
UT code for WoS article
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