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REX: A Computer Program for Pixe Spectrum Resolution of Aerosols

Published online by Cambridge University Press:  06 March 2019

Henry C. Kaufmann,
K. Roland Akselsson and
William J. Courtney
Henry C. Kaufmann
Affiliation:
Department of Physics Florida State University, Tallahassee, FL 32306
K. Roland Akselsson*
Affiliation:
Department of Oceanography Florida State University, Tallahassee, FL 32306
William J. Courtney*
Affiliation:
Department of Physics Florida State University, Tallahassee, FL 32306
*
3 Present address: Department of Physics University of Lund, Lund, Sweden
4 Present address: Department of Physics Florida A & M University, Tallahassee, Florida
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Abstract

REX is a Fortran program for analysis of spectra obtained in PIXE analysis. The underlying model is still under development; however, one year of experience has demonstrated REX's capability to be a fast reliable tool. The modeling of the different components and effects of the physical model is briefly discussed. Evidence is shown that secondary effects mostly due to Compton-scattering in and around the detector are important factors. In order to assure that heavy elements are recorded with sufficient sensitivity during short bombardment times, low energy X-rays are suppressed but not completely absorbed by use of a Mylar absorber with a hole. Such an absorber sometimes introduces severe problems for other techniques of spectrum analysis. However, to REX there is only the job to find the transmission curve of the absorber.

Information

Type
X-Ray Spectrometry in Environmental Analysis
Information
Advances in X-Ray Analysis , Volume 19: Twenty-Fourth Annual Conference on Applications of X-ray Analysis, August 6-8, 1975 , 1975, pp. 355 - 366
Copyright
Copyright © International Centre for Diffraction Data 1975

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References

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