Lunar Dust Grain Charging by Electron Impact: Dependence of the Surface Potential on the Grain Size
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F11%3A10108211" target="_blank" >RIV/00216208:11320/11:10108211 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1088/0004-637X/738/1/14" target="_blank" >http://dx.doi.org/10.1088/0004-637X/738/1/14</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1088/0004-637X/738/1/14" target="_blank" >10.1088/0004-637X/738/1/14</a>
Alternative languages
Result language
angličtina
Original language name
Lunar Dust Grain Charging by Electron Impact: Dependence of the Surface Potential on the Grain Size
Original language description
The secondary electron emission is believed to play an important role for the dust charging at and close to the lunar surface. However, our knowledge of emission properties of the dust results from model calculations and rather rare laboratory investigations. The present paper reports laboratory measurements of the surface potential on Lunar Highlands Type regolith simulants with sizes between 0.3 and 3 mu m in an electron beam with energy below 700 eV. This investigation is focused on a low-energy part, i.e., {= 100 eV. We found that the equilibrium surface potential of this simulant does not depend on the grain size in our ranges of grain dimensions and the beam energies, however, it is a function of the primary electron beam energy. The measurementsare confirmed by the results of the simulation model of the secondary emission from the spherical samples. Finally, we compare our results with those obtained in laboratory experiments as well as those inferred from in situ observations.
Czech name
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Czech description
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Classification
Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
BL - Plasma physics and discharge through gases
OECD FORD branch
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Result continuities
Project
Result was created during the realization of more than one project. More information in the Projects tab.
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
Name of the periodical
Astrophysical Journal
ISSN
0004-637X
e-ISSN
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Volume of the periodical
738
Issue of the periodical within the volume
1
Country of publishing house
US - UNITED STATES
Number of pages
7
Pages from-to
14, 1-7
UT code for WoS article
000294015500014
EID of the result in the Scopus database
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