Publication Date:
2019-07-13
Description:
The acoustic attenuation of a sample of lunar basalt 70215 was measured by the method of sphere resonance. A Q of 1185 was achieved under a vacuum of 7 millionths torr after heating the sample. He and CO2 gas caused a small decrease of Q. H2O vapor, however, resulted in a major decrease in Q. The Q of lunar material when measured on earth is low because of adsorbed gases. However, it is not clear that this effect explains completely the observed high lunar Q.
Keywords:
LUNAR AND PLANETARY EXPLORATION
Type:
Lunar Science Conference; Mar 14, 1977 - Mar 18, 1977; Houston, TX
Format:
text
Permalink