Hostname: page-component-848d4c4894-tn8tq Total loading time: 0 Render date: 2024-06-25T23:16:03.506Z Has data issue: false hasContentIssue false
  • English
  • Français

Monte Carlo Simulation of Self-Absorption Effects in Elemental XRF Analysis of Atmospheric Particulates Collected on Filters

Published online by Cambridge University Press:  06 March 2019

A. R. Hawthorne ,
R. P. Gardner  and
T. G. Dzubay
A. R. Hawthorne
Affiliation:
North Carolina State University Raleigh, North Carolina 27607
R. P. Gardner
Affiliation:
North Carolina State University Raleigh, North Carolina 27607
T. G. Dzubay
Affiliation:
North Carolina State University Raleigh, North Carolina 27607
Get access

Abstract

Monte Carlo simulation is used to determine the effects of selfabsorption for the low energy X-rays of light elements in the size range front 1 to 20 μm. Calculations are performed for a wide angle Fe-55 radioisotope-excited energy dispersive XRF system. Results are obtained for sulfur attenuation in thin layers, long cylinders, and spheres composed of various matrix materials. The enhancement effect is also treated for the transition region between thin and thick layer samples as well as in spheres of various sizes. Results are also comrpared to fixed angle analytical models.

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. 323 - 337
Copyright
Copyright © International Centre for Diffraction Data 1975

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

1. Dzubay, T. G. and Kelson, R. O., “Self Absorption Corrections for X-ray Fluorescence Analysis of Aerosols,” Advances in X-ray Analysis, 18, 619 (1974).Google Scholar
2. Gardner, R. P. and Hawthorne, A. R., “Monte Carlo Simulation of the X-ray Fluorescence Excited by Discrete Energy Photons in Homogeneous Samples Including Tertiary Inter-element Effects,” X-ray Spectrometry, 4, 138 (1975).Google Scholar
3. Hawthorne, A. R. and Gardner, R. P., “Monte Carlo Simulation of the X-ray Fluorescence from Homogeneous Multielement Samples Excited by the Continuous and Discrete Energy Photons from X-ray Tubes,” submitted for publication in Analytical Chemistry.Google Scholar
4. Giauque, R. D., Goulding, E. S., Jaklevic, J. M., and Pehl, R. H., “Trace Element Determination with Semiconductor Detector X-ray Spectrometers,” Analytical Chemistry, 45, 671–681 (1973).Google Scholar
5. Whitby, K. T., Husar, R. B., and Liu, B. Y. H., “The Aerosol Size Distribution of Los Angeles Smog,” Journal of Colloid and Interface Science. 39, 177–204 (1972).Google Scholar
6. Willeke, K., Whitby, K. T., Clark, W. E., and Marple, V. A., “Size Distribution of Denver Aerosols A Comparison of Two Sites,” Atmospheric Environment, 8, 609–633 (1974).Google Scholar
7. Lundgren, D. A., “Mass Distribution of Large Atmospheric Particles,” Ph.D. Thesis, University of Minnesota (1973).Google Scholar
8. Dzubay, T. G. and Stevens, R. K., “Ambient Air Analysis with Dichotomous Sampler and X-ray Fluorescence Spectrometer,” Environmental Science and Technology, 9, 663–668 (1975).Google Scholar
9. Loo, B. H. and Jaklevic, J. M., “An Evaluation of the ERC Virtual Impactor,” Lawrence Berkeley Laboratory Publication, LBL-2468, Berkeley (1974).Google Scholar
10. Rhodes, J. R. and Hunter, C. B., “Particle Size Effects in X-ray Emission Analysis: Simplified Formulas for Certain Practical Cases,” X-Ray Spectrometry, 1, 113–117 (1972).Google Scholar
11. Cooper, J. A., Ed., N.W., Battelle Lab Rep. SA 4690, June, 1973; Workshop on X-Ray Fluorescence Analysis of Aerosols, Seattle, Wash., April, 1973.Google Scholar
12. Eirks, L. S. and Gilfrich, J. V., “X-ray Absorption and Emission,” Analytical Chemistry, 46, 360R–366R (1974).Google Scholar
13. Sherman, J., “The Theoretical Derivation of Fluorescent X-ray Intensities from Mixtures,” Spectrochemica Acta, 7, 283 (1955).Google Scholar
14. Bertin, E. P., Principles and Practices of X-Ray Spectrometric Analysis, p. 418–419, Plenum Press (1970).Google Scholar
15. Veigele, W. J., “Photon Cross Sections from 0.1 KeV to 1 MeV for Elements Z=1 to Z=94,” Atomic Data Tables, 5, 51–111 (1973).Google Scholar
16. Bambynek, W., et al., “X-Ray Fluorescence Yields, Auger, Coster- Kronig Transition Probabilities,” Rev. Mod. Phys., 44, 716 (1972).Google Scholar