The Electrostatic Lunar Dust Analyzer (ELDA) for the detection and trajectory measurement of slow-moving dust particles from the lunar surface

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Title: The Electrostatic Lunar Dust Analyzer (ELDA) for the detection and trajectory measurement of slow-moving dust particles from the lunar surface
Authors: Duncan, N.1, Sternovsky, Z.1,2 Zoltan.Sternovsky@colorado.edu, Grün, E.1, Auer, S.3, Horanyi, M.1,4, Drake, K.1, Xie, J.1, Lawrence, G.1, Hansen, D.1, Le, H.1
Source: Planetary & Space Science. Oct2011, Vol. 59 Issue 13, p1446-1454. 9p.
Subjects: Lunar dust, Electrostatic analyzers, Trajectories (Mechanics), Meteoroids, Detectors, Lunar surface, Moon
Abstract: Abstract: Micron and submicron-sized dust particles can be lifted from the lunar surface due to continual micrometeoroid bombardment and electrostatic charging. The characteristics of these dust populations are of scientific interest and engineering importance for the design of future equipment to operate on the lunar surface. The mobilized grains are expected to have a low velocity, which makes their detection difficult by traditional methods that are based on momentum transfer or impact energy. We describe a newly developed instrument concept, the Electrostatic Lunar Dust Analyzer (ELDA), which utilizes the charge on the dust for detection and analysis. ELDA consists of an array of wire electrodes combined with an electrostatic deflection field region, and measures the mass, charge, and velocity vector of individual dust grains. The first basic prototype of the ELDA instrument has been constructed, tested and characterized in the laboratory. The instrument is set up to measure over a velocity range 1–100m/s and is sensitive to particles from an approximate mass range from 2×10−16 to 10−11 kg, depending on the charge state and velocity. [Copyright &y& Elsevier]
Copyright of Planetary & Space Science is the property of Pergamon Press - An Imprint of Elsevier Science and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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  Data: The Electrostatic Lunar Dust Analyzer (ELDA) for the detection and trajectory measurement of slow-moving dust particles from the lunar surface
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  Data: <searchLink fieldCode="AR" term="%22Duncan%2C+N%2E%22">Duncan, N.</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Sternovsky%2C+Z%2E%22">Sternovsky, Z.</searchLink><relatesTo>1,2</relatesTo><i> Zoltan.Sternovsky@colorado.edu</i><br /><searchLink fieldCode="AR" term="%22Grün%2C+E%2E%22">Grün, E.</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Auer%2C+S%2E%22">Auer, S.</searchLink><relatesTo>3</relatesTo><br /><searchLink fieldCode="AR" term="%22Horanyi%2C+M%2E%22">Horanyi, M.</searchLink><relatesTo>1,4</relatesTo><br /><searchLink fieldCode="AR" term="%22Drake%2C+K%2E%22">Drake, K.</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Xie%2C+J%2E%22">Xie, J.</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Lawrence%2C+G%2E%22">Lawrence, G.</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Hansen%2C+D%2E%22">Hansen, D.</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Le%2C+H%2E%22">Le, H.</searchLink><relatesTo>1</relatesTo>
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  Data: <searchLink fieldCode="JN" term="%22Planetary+%26+Space+Science%22">Planetary & Space Science</searchLink>. Oct2011, Vol. 59 Issue 13, p1446-1454. 9p.
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  Data: <searchLink fieldCode="DE" term="%22Lunar+dust%22">Lunar dust</searchLink><br /><searchLink fieldCode="DE" term="%22Electrostatic+analyzers%22">Electrostatic analyzers</searchLink><br /><searchLink fieldCode="DE" term="%22Trajectories+%28Mechanics%29%22">Trajectories (Mechanics)</searchLink><br /><searchLink fieldCode="DE" term="%22Meteoroids%22">Meteoroids</searchLink><br /><searchLink fieldCode="DE" term="%22Detectors%22">Detectors</searchLink><br /><searchLink fieldCode="DE" term="%22Lunar+surface%22">Lunar surface</searchLink><br /><searchLink fieldCode="DE" term="%22Moon%22">Moon</searchLink>
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  Data: Abstract: Micron and submicron-sized dust particles can be lifted from the lunar surface due to continual micrometeoroid bombardment and electrostatic charging. The characteristics of these dust populations are of scientific interest and engineering importance for the design of future equipment to operate on the lunar surface. The mobilized grains are expected to have a low velocity, which makes their detection difficult by traditional methods that are based on momentum transfer or impact energy. We describe a newly developed instrument concept, the Electrostatic Lunar Dust Analyzer (ELDA), which utilizes the charge on the dust for detection and analysis. ELDA consists of an array of wire electrodes combined with an electrostatic deflection field region, and measures the mass, charge, and velocity vector of individual dust grains. The first basic prototype of the ELDA instrument has been constructed, tested and characterized in the laboratory. The instrument is set up to measure over a velocity range 1–100m/s and is sensitive to particles from an approximate mass range from 2×10−16 to 10−11 kg, depending on the charge state and velocity. [Copyright &y& Elsevier]
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  Data: <i>Copyright of Planetary & Space Science is the property of Pergamon Press - An Imprint of Elsevier Science and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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        Value: 10.1016/j.pss.2011.06.002
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      – Code: eng
        Text: English
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        PageCount: 9
        StartPage: 1446
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      – SubjectFull: Lunar dust
        Type: general
      – SubjectFull: Electrostatic analyzers
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      – SubjectFull: Trajectories (Mechanics)
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      – SubjectFull: Meteoroids
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      – SubjectFull: Detectors
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      – SubjectFull: Lunar surface
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      – SubjectFull: Moon
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      – TitleFull: The Electrostatic Lunar Dust Analyzer (ELDA) for the detection and trajectory measurement of slow-moving dust particles from the lunar surface
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              Text: Oct2011
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