Reports

Infrared Emission Spectra: Enhancement of Diagnostic Features by the Lunar Environment

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Science  28 Aug 1970:
Vol. 169, Issue 3948, pp. 865-866
DOI: 10.1126/science.169.3948.865

Abstract

Information diagnostic of general rock type is available as a well-defined emission maximum (related to the Christiansen frequency), rather than as contrast-depleted minima, in the infrared spectra of particulate solids. The amount of spectral information varies directly with the sharpness of the thermal gradient at the sample surface. Lunar thermal conditions optimize this gradient, making the moon an excellent target for remote sensing.

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