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Micro X-Ray Fluorescence of Particles Using a Laboratory X-Ray Source and Capillary Optics

Published

Author(s)

J R. Swider, Terrence J. Jach, Eric B. Steel

Abstract

We are developing a micro X-ray fluorescence (micro-XRF) instrument that combines a polycapillary optic with a standalone X-ray tube. The optic transmits and focuses an X-ray beam down to 50 υm fwhm. The tight resolution is enhanced by a significant increase in flux, making particle detection and resolution possible on a laboratory scale. The first fluorescence studies examined spheres of Ti and two NIST Microanalysis glasses, K-411 and K-919. This system produced low background spectra, flexibility in instrument arrangement, and nonogram levels of detection. Future improvements will reduce detection limits and provide an ideal arrangement for a highly sensitive, portable micro-XRF instrument.
Citation
Microscopy and Microanalysis

Keywords

capillary optics, micro X-ray fluorescence, particles

Citation

Swider, J. , Jach, T. and Steel, E. (1999), Micro X-Ray Fluorescence of Particles Using a Laboratory X-Ray Source and Capillary Optics, Microscopy and Microanalysis (Accessed August 9, 2022)
Created October 1, 1999, Updated February 17, 2017