Statistics – Computation
Scientific paper
Mar 1977
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1977natur.266..411d&link_type=abstract
Nature, vol. 266, Mar. 31, 1977, p. 411-415. Research supported by the Science Research Council and Pakistan Atomic Energy Commi
Statistics
Computation
2
Lunar Shadow, Lunar Soil, Lunar Temperature, Soil Mechanics, Temperature Measurement, Time Dependence, Computer Techniques, Luminescence, Lunar Rocks, Lunar Surface, Radiation Effects
Scientific paper
The thermoluminescence properties of soil samples from inside the shadows of some Apollo 17 boulders and from an adjacent sunlit area are used to calculate the temperature in the shade and the length of time for which one of the boulders had cast a shadow on a sample. Parameters required for the computations are determined, and equations are obtained which govern the radiation-filling and thermal-emptying of thermoluminescence traps under generalized environmental conditions. A lunar storage temperature of 371 K for the sunlit sample is calculated together with a temperature of 256 K in the boulder shadow and a boulder-shadow duration of 40,000 to 65,000 years. Implications of these results for soil mechanics on the lunar surface are briefly discussed.
Ali Abbas
Durrani Saeed A.
Khazal A. R. K.
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