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Auger spectroscopy as a complement to NanoSIMS
studies of presolar materials
Stadermann F. J., Floss C., Zinner E., Nguyen A.,
and Lea A. S. (2005) Meteorit. Planet. Sci.
40, A146.
ABSTRACT
The NanoSIMS ion microprobe has proven to be an ideal
tool for locating isotopically distinct circumstellar
materials on a sub-micrometer scale in a variety of
extraterrestrial materials. However, to completely
characterize presolar phases it is essential to obtain
chemical and mineralogical data beyond what the NanoSIMS can
provide. Although this can be done in some cases with the
transmission electron microscope (TEM), not all samples lend
themselves to this analytical approach. Detailed
investigations of the suitability of various analytical
techniques have convinced us that scanning Auger
spectrometry best complements the NanoSIMS by providing
mineralogical information on a comparable spatial scale
without the need for extensive sample preparation.
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