Other
Scientific paper
Dec 1992
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992ntlr.work...45r&link_type=abstract
In Lunar and Planetary Inst., Joint Workshop on New Technologies for Lunar Resource Assessment p 45-46 (SEE N93-17233 05-91)
Other
Chemical Composition, Gamma Ray Spectrometers, Lunar Composition, Lunar Resources, Lunar Surface, Neutron Spectrometers, Charged Particles, Geochemistry, Lunar Maps, Lunar Rocks, Lunar Soil, Neutron Flux Density
Scientific paper
Some elements in the Moon can be resources, such as hydrogen and oxygen. Other elements, like Ti or the minerals in which they occur, such as ilmenite, could be used in processing lunar materials. Certain elements can also be used as tracers for other elements or lunar processes, such as hydrogen for mature regoliths with other solar-wind-implanted elements like helium, carbon, and nitrogen. A complete knowledge of the elemental composition of a lunar region is desirable both in identifying lunar resources and in lunar geochemical studies, which also helps in identifying and using lunar resources. The use of gamma ray and neutron spectroscopy together to determine abundances of many elements in the top few tens of centimeters of the lunar surface is discussed. To date, very few discussions of elemental mapping of planetary surfaces considered measurements of both gamma rays and the full range of neutron energies. The theories for gamma ray and neutron spectroscopy of the Moon and calculations of leakage fluxes are presented here with emphasis on why combined gamma ray/neutron spectroscopy is much more powerful than measuring either radiation alone.
Byrd R. C.
Drake Darrell M.
Feldman William C.
Masarik Jozef
Moss Calvin E.
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