Prospecting for Lunar Oxygen with Gamma-Ray Spectrometry and Multispectral Imaging

Physics

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Extraction, Lunar Bases, Oxygen, Water, Iron Oxides, Life Support Systems, Gamma Ray Spectrometers, Remote Sensing, Volcanology

Scientific paper

Oxygen is a potentially abundant lunar resource that could be used for life support and spacecraft propulsion. The recent identification by Prospector of ice at the lunar poles has renewed interest in the use of in situ 0 production to supply a future base. Siting a lunar base at any significant distance from the poles, however, would require costly transport of 0 or its extraction from the local regolith. More than 20 different processes have been proposed for regolith 0 extraction. Among the simplest and best studied of these processes is the reduction of oxides in lunar minerals and glass using H gas. Oxides, predominantly those containing FeO, are first reduced; 0 is then liberated to form water. The water is then electrolyzed to yield 0, and the H is recycled to the reactor.

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