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Non-Linear Least Squares Analysis of Proton-Induced X-Ray Emission Data

Published online by Cambridge University Press:  06 March 2019

H. C. Kaufmann  and
R. Akselsson
H. C. Kaufmann
Affiliation:
Department of Physics and Department of Oceanography, Florida State University, Tallahassee, Florida 32306
R. Akselsson
Affiliation:
Department of Physics and Department of Oceanography, Florida State University, Tallahassee, Florida 32306
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Abstract

A Fortran program for analysis of spectra obtained in proton induced x-ray emission spectroscopy is under development. The first version is working and some results are shown. The program uses a model which describes the physics involved in the analysis. The continuum is described by an exponentially decreasing function representing secondary electron induced bremsstrahlung and a constant approximating different Compton scattering processes. Absorption effects are also included. All parameters in the model are fitted simultaneously. About 100 test runs have been made with good results. The continuum was accurately fitted for each spectrum. Other advantages are reliability, speed, and the fact that the program is easily adaptable to a small computer with 16K memory.

Type
Research Article
Information
Advances in X-Ray Analysis , Volume 18: Twenty-Third Annual Conference on Applications of X-ray Analysis, August 7-9, 1974 , 1974 , pp. 353 - 361
Copyright
Copyright © International Centre for Diffraction Data 1974

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References

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