title: Coupling of imaging NEXAFS with secondary ion mass spectrometry for the chemical and isotopic analysis of presolar cosmic grains.
abstract: We present first results of the combination of imaging photoemission electron spectroscopy with imaging mass spectrometry. Imaging NEXAFS was combined with TOF-SIMS in order to perform a spatially resolved chemical and isotopic analysis of microscopic grain samples. Imaging NEXAFS was used for the nondestructive lateral characterization of mineral phases prior to isotopically resolved mass analysis by imaging TOF-SIMS. This novel approach was demonstrated by performing a chemical and isotopic analysis of the rare presolar grain fraction present in the Murchison meteorite.
authors.affiliation: Institut für Physik, Universität Mainz, Staudingerweg 7, 55128 Mainz, Germany. BergT@uni-mainz.de
authors.forename: Thomas
authors.initials: T
authors.lastname: Berg
authors.forename: Jochen
authors.initials: J
authors.lastname: Maul
authors.forename: Nicole
authors.initials: N
authors.lastname: Erdmann
authors.forename: Pasqual
authors.initials: P
authors.lastname: Bernhard
authors.forename: Stefan
authors.initials: S
authors.lastname: Schuppler
authors.forename: Peter
authors.initials: P
authors.lastname: Nagel
authors.forename: Christa
authors.initials: C
authors.lastname: Sudek
authors.forename: Ulrich
authors.initials: U
authors.lastname: Ott
authors.forename: Gerd
authors.initials: G
authors.lastname: Schönhense