Laboratory-based characterization of plutonium in soil particles using micro-XRF and 3D confocal XRF

The measurement of plutonium (Pu) in a soil matrix is of interest in safeguards, nuclear forensics, and environmental remediation activities. The elemental composition of two Pu contaminated soil particles was characterized nondestructively using micro X-ray fluorescence spectrometry (micro-XRF) tec...

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Published in:Journal of analytical atomic spectrometry 2015-01, Vol.3 (7), p.1511-1517
Main Authors: McIntosh, K. G, Cordes, N. L, Patterson, B. M, Havrilla, G. J
Format: Article
Language:English
Subjects:
Analytical Chemistry
Confocal
Nanostructure
Plutonium
RADIATION CHEMISTRY, RADIOCHEMISTRY, AND NUCLEAR CHEMISTRY
Soil (material)
Spectrometry
Spectroscopy
Three dimensional
X-rays
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cited_by cdi_FETCH-LOGICAL-c441t-7b6115d162eb24f78a51828f8475be8a99cda4d998b55111321eb71b8616a43b3
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creator McIntosh, K. G
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description The measurement of plutonium (Pu) in a soil matrix is of interest in safeguards, nuclear forensics, and environmental remediation activities. The elemental composition of two Pu contaminated soil particles was characterized nondestructively using micro X-ray fluorescence spectrometry (micro-XRF) techniques including high resolution X-ray (hiRX) and 3D confocal XRF. The three dimensional elemental imaging capability of confocal XRF permitted the identification two distinct Pu particles within the samples: one external to the Fe-rich soil matrix and another co-located with Cu within the soil matrix. The size and morphology of the particles was assessed with X-ray transmission microscopy (XTM) and micro X-ray computed tomography (micro-CT) providing complementary information. Limits of detection for a 30 μm Pu particle are
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The size and morphology of the particles was assessed with X-ray transmission microscopy (XTM) and micro X-ray computed tomography (micro-CT) providing complementary information. Limits of detection for a 30 μm Pu particle are &lt;15 ng for each of the XRF techniques. This study highlights the capability for lab-based, nondestructive, spatially resolved characterization of heterogeneous matrices on the micrometer scale with nanogram sensitivity. 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source Royal Society of Chemistry:Jisc Collections:Royal Society of Chemistry Read and Publish 2022-2024 (reading list)
subjects Analytical Chemistry
Confocal
Nanostructure
Plutonium
RADIATION CHEMISTRY, RADIOCHEMISTRY, AND NUCLEAR CHEMISTRY
Soil (material)
Spectrometry
Spectroscopy
Three dimensional
X-rays
title Laboratory-based characterization of plutonium in soil particles using micro-XRF and 3D confocal XRF
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