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SUPERXAP- A Personal-Computer-Based Program for Energy-Dispersive X-Ray Spectra Analysis

Published online by Cambridge University Press:  06 March 2019

D.B. Yager  and
J.E. Quick
D.B. Yager
Affiliation:
U.S. Geological Survey, MS 903, P.O. Box 25046, Denver Federal Center, Denver, Colorado 80225
J.E. Quick
Affiliation:
U.S. Geological Survey, MS 903, P.O. Box 25046, Denver Federal Center, Denver, Colorado 80225
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Abstract

SUPERXAP (Super X-ray Analysis Program) enables IBM-compatible personal computers to analyze energy-dispersive spectra using least-squares spectral deconvolution. The program corrects for instrument drift, background, peak overlap, and matrix effects. Pull down menus provide 24 subroutines and functions, that allow spectra to be transferred, stored, viewed, manipulated, and analyzed. Spectral peaks can be identified manually or automatically with color-coded K, L or M lines. Working curves are developed using an interactive routine that creates standard files by least-squares fitting of peak intensities to known elemental abundances. Elemental abundances in unknowns may be determined in a variety of ways including on-line analysis of spectra as they are generated by an energy-dispersive detector and by batch analyses of spectra stored on disk. Standard deviation, based on counting statistics, is reported for each element in each analysis. Written in QuickBASIC 4.5 for interface with a KEVEX 7000 radioactive-source x-ray fluorescence analyzer, SUPERXAP could be adapted, with minor modification, to accept and analyze data from other instruments that produce energy-dispersive spectra.

Type
I. Mathematical Techniques in X-Ray Spectrometry
Information
Advances in X-Ray Analysis , Volume 36: Forty-First Annual Conference on Applications of X-ray Analysis, August 3-7, 1992 , 1992 , pp. 17 - 25
Copyright
Copyright © International Centre for Diffraction Data 1992

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