Physics
Scientific paper
Dec 1974
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1974jgr....79.5453a&link_type=abstract
Journal of Geophysical Research, vol. 79, Dec. 10, 1974, p. 5453-5457.
Physics
Dielectric Properties, Fines, Lunar Soil, Space Environment Simulation, Earth Surface, High Vacuum, Lunar Surface, Permittivity, Thermal Simulation, Volatility
Scientific paper
The dielectric properties of lunar fines 74241,2 in the audio-frequency range under lunarlike conditions are presented. Results suggest that volatiles are released during storage and transport of the lunar sample. Apparently, subsequent adsorption of volatiles on the sample surface alters its dielectric response. The assumed volatile influence disappears after evacuation. A comparison of the dielectric properties of lunar and terrestrial materials as a function of density, temperature, and frequency indicates that if the terrestrial sample analyzed were completely devoid of atmospheric moisture, it would present dielectric losses smaller than those of the lunar sample. It is concluded that density prevails over temperature as the controlling factor of dielectric permittivity in the lunar regolith and that dielectric losses vary slowly with depth.
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