Dielectric properties of Apollo 14 lunar samples.Laboratory characterization of dielectric properties of lunar samples 14301,41, 14310,75, 14318,30 and 14321,163 is made. Our measurements of dielectric constants and losses were made over a range of frequency from 100 Hz to 10 MHz and temperature from 77 to 473 K by two-terminal capacitance substitution methods. The dielectric behavior of these samples is generally similar to other lunar samples from Apollo 11 and Apollo 12 sites when these samples are free from absorbed moisture. As did sample 12002,58, sample 14310,75 showed a distinctive dispersion that may be associated with the presence of water, and different values of the activation energy for conduction as the temperature was varied. The activation energies range from about 0.03 to 0.5 eV.
Document ID
19730035093
Acquisition Source
Legacy CDMS
Document Type
Conference Proceedings
Authors
Chung, D. H.
Westphal, W. B.
Olhoeft, G. R. (MIT Cambridge, Mass., United States)