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X-Ray Fluorescence Capabilities for Uranium Ore Analysis*

Published online by Cambridge University Press:  06 March 2019

K. K. Nielson
Affiliation:
Battelle Pacific Northwest Laboratories, Richland, Washington 99352
N. A. Wogman
Affiliation:
Battelle Pacific Northwest Laboratories, Richland, Washington 99352
R. L. Brodzinski
Affiliation:
Battelle Pacific Northwest Laboratories, Richland, Washington 99352
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Abstract

Comparable uranium sensitivities and detection limits can be obtained by either energy- or wavelength-dispersive x-ray fluorescence (XRF) analysis of L x-rays, and by wavelength-dispersive analysis of M x-rays. XRF methods are more sensitive than 252Cf neutron-induced γ-ray analysis or direct photon analysis of rapid-equilibrium uranium daughters. A laboratory method is demonstrated for quantitative uranium determination in unknown geological matrices without using ore standards.

Type
Research Article
Copyright
Copyright © International Centre for Diffraction Data 1977

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Footnotes

*

This work supported by USERDA contract EY-76-C-06-1830.

References

1. Miller, A.G., “Analytical Utility of the M Series X-ray Emission Lines Applied to Uranium, Neptunium, Plutonium, and Americium,” Anal. Chem. 48, 176 (1976).Google Scholar
2. Hathaway, L.R. and James, G.W., “Use of Chelating Ion-Exchange Resin in the Determination of Uranium in Ground Water by X-ray Fluorescence,” Anal. Chem. 47, 2035 (1975).Google Scholar
3. James, G.W., “Parts-per-Million Determinations of Uranium and Thorium in Geologic Samples by X-ray Spectrometry,” Anal. Chem. 49, 967 (1977).Google Scholar
4. Wogman, N.A. and Nielson, K.K., “In-Situ Parts-per-Million Analysis of Marine Sediments by X-ray Fluorescence Techniques,” Proc. MTS-IEEE Symp., Oceans ‘76, Washington, D.C., 1976, p. 12A.Google Scholar
5. Rhodes, O. R., “Portable Radioisotope X-ray Analyzers-Techniques and Applications,” Isotop. Rad. Technol. 8 , 153 (1970-71).Google Scholar
6. Nielson, H.L., Wogman, N.A. and Brodzinski, R.L., “In-Situ Subterranean Gamma-Ray Spectroscopy,” Nucl. Inst. Meth. 143, 385 (1977).Google Scholar
7. Gedcke, D.A., Rolle, R. and Lloyd, P.d.D., “A Portable Gold Analyzer for In-Situ Ore Analysis,” These proceedings, (1978).Google Scholar
8. Berry, P.F., Furuta, T. and Rhodes, J.R., “Particle Size Effects in Radioisotope X-ray Spectrometry,” Advances in X-ray Anal. 12 , 612 (1969).Google Scholar
9. Forberg, S. and de Ruvo, A. R., “Analysis of Uranium Solutions by Scintillation Detection of X-ray Fluorescence Excited by Co-57 122-keV γ-Rays,” in Proc. Symp. Radiochem. Methods of Anal., Salzburg, 1964, Vol. I, IAEA, Vienna, 1965, p. 485.Google Scholar
10. Mubarakmand, S., Chaudhry, P. and Nagi, F.I., “Absolute Determination of Uranium Concentration in Rocks by Gamma-Ray Spectroscopy,” Nucl. Inst. Meth. 140 , 133 (1977).Google Scholar
11. U. S. Geological Survey, “Intrinsic Germanium, ZS2Cf Borehole Sonde Used for Uranium Exploration,” Californium-252 Progress, No. 21, Dec., 1976, p. 15, USERDA.Google Scholar
12. Brodzinski, R.L. and Wogman, N.A., “Californium-252 In-Situ Activation and Photon Detection Techniques for Uranium Ore Deposit Evaluation,“ IAEA/SM/208-50 (1976).Google Scholar
13. Wogman, N.A., Robertson, D.E. and Perkins, R.W., “A Large Detector, Anticoincidence Shielded Multidimensional Gamma-Ray Spectrometer,” Nucl. Inst. Meth. 50, 1 (1967).Google Scholar
14. IRT Corporation, “252 Cf-Based Borehole Logging System for In- Situ Assaying of Uranium Ore,” Californium-252 Progress, No. 21, Dec., 1976, p. 17, USERDA.Google Scholar
15. Hancock, R.G.V., “Low Flux Multielement Instrumental Neutron Activation Analysis in Archaeometry,” Anal, Chem. 48, 1443 (1976).Google Scholar
16. Steinnes, E., “Simultaneous Determination of Uranium, Thorium, Molybdenum, Tungsten, Arsenic, and Antimony in Granitic Rocks by Epithermal Neutron Activation Analysis,” Anal. Chem. 48, 1440 (1976).Google Scholar
17. Laul, J.C., “Neutron Activation Analysis in Geological Materials,” BNWL-SA-6280, Battelle Northwest, Richland, WA, 99352, May, 1977.Google Scholar
18. Nielson, K.K., “Matrix Corrections for Energy Dispersive X-ray Fluorescence Analysis of Environmental Samples with Coherent/ Incoherent Scattered X-rays,” Anal. Chem. 49, 641 (1977).Google Scholar