Browsing LPI Contributions by Author "Walker, R. M."

Now showing items 1-3 of 3

Ion probe analysis of artificially implanted ions in terrestrial samples and surface enhanced ions in lunar sample 76215,77

Zinner, E.; Walker, R. M.; Chaumont, J.; Dran, J. C. (Pergamon Press, 1976)

We used the ARL ion probe at the JSC to measure concentration depth profiles of artificially implanted ions in terrestrial minerals and of natural elements on the surface of a recently exposed lunar plagioclase crystal.
Ion probe surface concentration measurements of Mg and Fe and microcraters in crystals from lunar rock and soil samples

Zinner, E.; Walker, R. M.; Chaumont, J.; Dran, J. C. (Pergamon Press, 1977)

Measurements of solar wind implanted ions and microcraters on the surface of lunar rock crystals and soil grains allow the study of solar activity and the interplanetary environment and their possible changes in the past. ...
Ion-probe studies of artificially implanted ions in lunar samples

Zinner, E.; Walker, R. M. (Pergamon Press, 1975)

The ion microprobe at the Johnson Space Center was used to study depth profiles of artificially implanted ions in lunar samples. Five polished sections of typical mare basalts (12040 and 12018) were irradiated with nine ...

Search HOU Repository