Sputtering of SiO2 Dust Grains
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F13%3A10192236" target="_blank" >RIV/00216208:11320/13:10192236 - isvavai.cz</a>
Result on the web
<a href="http://www.mff.cuni.cz/veda/konference/wds/proc/pdf13/WDS13_206_f2_Vysinka.pdf" target="_blank" >http://www.mff.cuni.cz/veda/konference/wds/proc/pdf13/WDS13_206_f2_Vysinka.pdf</a>
DOI - Digital Object Identifier
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Alternative languages
Result language
angličtina
Original language name
Sputtering of SiO2 Dust Grains
Original language description
Dust grains in space are exposed to energetic ions, electrons and UV irradiation. Impact of energetic ions can lead to sputtering of the grain consequently resulting in grain destruction during long-term exposures. To study such processes we have chosenspherical SiO2 grains with diameters in the range of 1 micrometer as a representative of silicate-type space dust. Our experimental set-up enables us to catch and store a single dust grain which can be sputtered by the ion beam. The mass of the grain ismeasured after each sputtering session and we can judge the sputtering eciency from temporal changes of the mass. Our results suggest that the mass change is around 1.5 % per 3-hour bombardment by 1 keV Ar+ ions (current density of 0.2-1.2 mA/m2) which corresponds to the sputtering yield of the order of unity. An estimation of dust grain survival in solar wind conditions based on our measurement is shown as an application.
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
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Continuities
S - Specificky vyzkum na vysokych skolach<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2013
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'13 Proceedings of Contributed Papers: Part II - Physics of Plasmas and Ionized Media
ISBN
978-80-7378-251-1
ISSN
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e-ISSN
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Number of pages
6
Pages from-to
42-47
Publisher name
Matfyzpress
Place of publication
Praha
Event location
Praha
Event date
Jun 4, 2013
Type of event by nationality
EUR - Evropská akce
UT code for WoS article
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