Lunar surface - Sputtering and secondary ion mass spectrometry

Details Lunar surface - Sputtering and secondary ion mass spectrometry Lunar surface - Sputtering and secondary ion mass spectrometry

Nov 1991

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991georl..18.2169j&link_type=abstract

Geophysical Research Letters (ISSN 0094-8276), vol. 18, Nov. 1991, p. 2169-2172. Research supported by NASA and NSF.

Physics

50

Lunar Composition, Lunar Surface, Micrometeorites, Secondary Ion Mass Spectrometry, Solar Wind, Chemical Fractionation, Ejecta, Meteorite Craters, Vaporizing

Scientific paper

Laboratory and Apollo observations are combined to describe the sputtering of the lunar surface and the composition of the ejecta with special reference to O. The atmospheric inventory appears to be dominated by micrometeorite vaporization of lunar grains. Sputtering effects are observable in the local plasma due to ion ejection, in the extended atmosphere through energetic neutral ejection, and on grain surfaces through the chemical fractionation of the redoposited sputter-ejecta. Ionization of the micrometeorite-vapor also contributes to the local plasma.

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