A model for the accumulation of solar wind radiation damage effects in lunar dust grains, based on recent results concerning implantation and erosion effects

Details A model for the accumulation of solar wind radiation damage effects in lunar dust grains, based on recent results concerning implantation and erosion effects A model for the accumulation of solar wind radiation damage effects in lunar dust grains, based on recent results concerning implantation and erosion effects

Nov 1983

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983lpsc...13..725b&link_type=abstract

Langevin, M. Maurette (CNRS, Centre de Spectrometrie Nucleaire et de Spectrometrie de Masse, Orsay, Essonne, France), and G. Cow

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Computation

Erosion, Ion Implantation, Lunar Dust, Radiation Damage, Solar Wind Velocity, Amorphous Materials, Electron Microscopy, Radiation Effects, Regolith, Solar Corpuscular Radiation, Velocity Distribution

Scientific paper

In this paper, the most recent results are presented on ion implantation and erosion effects intended to reproduce the superficial amorphous layers of radiation damage observed with a high voltage electron microscope on micron-size grains extracted from the lunar regolith and which result from the exposure of the grains to the solar wind. Theoretical computations are then outlined which yield the thickness distribution of such amorphous layers as a function of the exposure time of the grains at the surface of the moon, the He/H ratio, and the speed distribution in the solar wind. From this model, the position of the peak in the solar wind speed distribution is the major parameter controlling the thickness of the amorphous layer.

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