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Incident and Take-Off Angles for Commercial X-Ray Spectrometers for Use With Fumdamental Parameter Software

Published online by Cambridge University Press:  06 March 2019

D.E. Leyden  and
D.B. Bilbrey
D.E. Leyden
Affiliation:
Department of Chemistry Colorado State University Fort Collins, CO 80523
D.B. Bilbrey
Affiliation:
Department of Chemistry Colorado State University Fort Collins, CO 80523
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Extract

In recent years there has been substantial development of computer programs which permit the computation of elemental concentration in a variety of samples from basic principles of X-ray absorption and emission. These prog rates are generally called "fundamental parameter" programs. For many years these programs required large main frame computers for execution. An example is the well known NRLXRF program. For the past few years, programs have been available for minicomputers such as the PDP/11 OR LSI/11 systems. The XRF-11 program from Criss Software, the SAP3 program from Batelle Pacific Northwest Laboratory. and a variety of programs from the X-ray instrumentation vendors are examples. Some fundamental parameter programs have been available for several years that can be executed on microcomputers or the so-called personal computers. Some programs use an "effective wavelength" approximation of the tube output to simplify computations.

Type
Research Article
Information
Advances in X-Ray Analysis , Volume 29: Thirty-Fourth Annual Conference on Applications of X-ray Analysis, August 5-9, 1985 , 1985 , pp. 493 - 495
Copyright
Copyright © International Centre for Diffraction Data 1985

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References

1. Criss, J.W., Birks, L.S., and Gilfrich, J.V., Anal. Chem., 50: 33 (1978).Google Scholar
2. Criss, J.W., Adv. X-Ray Anal., 23: 93 (1980).Google Scholar
3. Nielson, K.k. and Sanders, R.W., The Sap3 Computer Program for Quantitative Multielement Analysis by Energy Dispersive X-Ray Fluorescence, Report PNL-4173, Pacific Northwest Laboratories, Richland, WA. 9352, 1982.Google Scholar
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7. This and other X-ray programs adapted by Martin, R.L. are available from The Research Corporation/Research Software, 6840 E. Broadway Ave. Tucson, AZ. 5710.Google Scholar