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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
*
3Present address: Department of Physics University of Lund, Lund, Sweden
4Present 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.

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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