Applications of synchrotron x-ray fluorescence to extraterrestrial materials

Conference · Wed Jan 01 00:00:00 EST 1986

OSTI ID:7121430

Sutton, S R; Rivers, M L; Smith, J V

Synchrotron x-ray fluorescence (SXRF) is a valuable technique for trace element analyses of extraterrestrial materials permitting minimum detection limits less than 1 ppM for 20 micrometer spots. SXRF measurements have been performed on iron meteorites and micrometeorites using white synchrotron radiation and an energy dispersive x-ray detector at the National Synchrotron Light Source (X-26C), Brookhaven National Laboratory (NY). Partitioning of Cu between troilite (FeS) and metal in the nine iron meteorites studied suggests sub-solidus re-equilibration in these objects. A technique has been developed for determining self-absorption corrections for filtered, continuum excitation of small specimens, such as stratospheric particles and refractory inclusions in meteorites.

• Research Organization: Brookhaven National Lab., Upton, NY (USA); Chicago Univ., IL (USA). Dept. of Geophysical Sciences
• DOE Contract Number: AC02-76CH00016
• OSTI ID: 7121430
• Report Number(s): BNL-39109; CONF-861114-45; ON: DE87005243
• Resource Relation: Conference: 9. international conference on application of accelerators in research and industry, Denton, TX, USA, 10 Nov 1986; Other Information: Portions of this document are illegible in microfiche products
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
IRON METEORITES
X-RAY FLUORESCENCE ANALYSIS
NSLS
USES
COPPER
NICKEL
ACCELERATORS
CHEMICAL ANALYSIS
CYCLIC ACCELERATORS
ELEMENTS
METALS
METEORITES
NONDESTRUCTIVE ANALYSIS
RADIATION SOURCES
SYNCHROTRON RADIATION SOURCES
SYNCHROTRONS
TRANSITION ELEMENTS
X-RAY EMISSION ANALYSIS
430303* - Particle Accelerators- Experimental Facilities & Equipment