A Quantitative Method for Evaluating Regolith Simulants

Statistics – Applications

Scientific paper

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Features, Landmarks, Mineralogy, And Petrology

Scientific paper

The surface of rocky planets, moons and some other astronomical bodies have significant amounts of broken geologic materials. In the absence of more specific, applicable terminology, such material is generically termed regolith. Even on relatively simple bodies, like the Moon, the nature of the regolith is fairly complex. For mission development a regolith needs to be simulated; and many have been created for the Moon and Mars. But there is no generally accepted method to express the quality of a simulant. This paper proposes a method for ascertaining the quality of a simulant through the use of Figures-of-Merit. In support of NASA's exploration mission this method has been implemented. MSFC has creating a suite of simulants whose compositions cover the samples returned by the Apollo missions. These are termed Standard Lunar Regolith Simulant (SLRS) materials. The approach is adaptable, extensible and evolutionary. It is considered highly applicable to other regoliths of interest.

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