Computer Science – Performance
Scientific paper
Dec 2008
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008agufm.p31b1415g&link_type=abstract
American Geophysical Union, Fall Meeting 2008, abstract #P31B-1415
Computer Science
Performance
6015 Dust, 6250 Moon (1221), 6297 Instruments And Techniques, 7849 Plasma Interactions With Dust And Aerosols (2461)
Scientific paper
Electrostatic levitation and transport of lunar dust remains an interesting and controversial science issue from the Apollo era. This issue is also of great engineering importance for designing human habitats and protecting optical and mechanical devices. The lunar surface is exposed to temporally and spatially varying solar wind plasma, UV radiation, and/or the plasma environment of the Earth's magnetosphere. Dust grains on the lunar surface collect an electrostatic charge and contribute to the large- scale surface charge density distribution. The Electrostatic Lunar Dust Analyzer (ELDA) instrument is under development to characterize individual mobilized dust particles. ELDA measures trajectory, charge and mass with high precision. The particles" trajectories are determined by the measurement of the electric signals that are induced when a charged grain flies through a position-sensitive detector system consisting of an array of wire electrodes connected to charge sensitive electronics. The mass of the dust is determined from the deflection in a region with strong electric field. A prototype of the trajectory detector has been constructed and tested. Here we present the instrument design, optimization of performance and the first experimental data.
Auer Stefan
Drake K.
Duncan Nicole
Gruen Eberhard
Horanyi Mihaly
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