Abstract
Energy dispersive X-ray fluorescence (EDXRF) spectra collected from alpha emitters are complicated by artifacts inherent to the alpha decay process, particularly when using portable instruments. For example, 239Pu EDXRF spectra exhibit a prominent uranium L X-ray emission peak series due to sample alpha decay rather than source-induced X-ray fluorescence. A portable EDXRF instrument was used to collect qualitative spectra from plutonium and americium, and metal alloy identification was performed on a Pu-contaminated steel sample. Significant alpha decay-induced X-ray fluorescence peaks were observed in spectra obtained from the plutonium and americium samples due to the 235U and 237Np daughters, respectively. The plutonium sample was also analyzed by wavelength dispersive XRF (WDXRF) to demonstrate that alpha decay-induced X-ray emission has a negligible effect on WDXRF spectra.
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References
Beckhoff B, Kanngießer B, Langhoff N, Wedell R, Wolff H (eds) (2006) Handbook of practical X-ray fluorescence analysis. Springer, Berlin, p 302
Yee S, Janney DE (2008) Background X-ray spectrum of radioactive samples. In: Abstract from the 2008 American Nuclear Society Student Conference, College Station, TX, 2008
Reilly D, Ensslin N, Smith H Jr, Kreiner S (1991) Passive nondestructive assay of nuclear materials. NUREG/CR-5550 US Nuclear Regulatory Commission, Washington, DC, p 5
Beddoes J, Parr J (1999) Introduction to stainless steels. ASM International, Materials Park, OH
Acknowledgements
I would like to thank Connie Soderberg for supplying the americium eluate solution. I am also grateful to Lav Tandon and Kevin Kuhn for providing the age of the plutonium sample used to prepare the americium specimen.
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Worley, C.G. Analysis of nuclear materials by energy dispersive X-ray fluorescence and spectral effects of alpha decay. J Radioanal Nucl Chem 282, 539–542 (2009). https://doi.org/10.1007/s10967-009-0259-4
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DOI: https://doi.org/10.1007/s10967-009-0259-4