Nondestructive Spectrometric Study on a Radioactive Particle Embedded in a Marine Sediment

Bielewski, Marek; Himbert, Jérôme; Niagolova, N.; Falkenberg, Gerald; Eriksson, Mats; Betti, M.

doi:10.1017/s1431927608080707

Cited by 7 publications

(3 citation statements)

References 11 publications

(13 reference statements)

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“…This unique optical geometry facilitates confocal SR‐μ‐XRF in depth elemental imaging and three‐dimensional chemical mapping for actinide materials. Bielewski et al determined the spatial distribution of elements in a radioactive particle embedded in a sediment collected from the Irish Sea and performed three‐dimensional reconstructions of the Ca, Cr, Mn, Fe, Zn, Sr, Ba, Pb, and U distributions using confocal μ‐XRF. The investigation showed that the sample consisted of a calcite matrix, while uranium was present in the form of separate inclusions with the sizes up to 20 mm and outside the inclusions the concentration of uranium cannot be determined in a reliable manner.…”

Section: Synchrotron Radiation X‐ray Fluorescence (Sr‐xrf) For Elemenmentioning

confidence: 99%

Exploring Actinide Materials Through Synchrotron Radiation Techniques

et al. 2014

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Synchrotron radiation (SR) based techniques have been utilized with increasing frequency in the past decade to explore the brilliant and challenging sciences of actinide‐based materials. This trend is partially driven by the basic needs for multi‐scale actinide speciation and bonding information and also the realistic needs for nuclear energy research. In this review, recent research progresses on actinide related materials by means of various SR techniques were selectively highlighted and summarized, with the emphasis on X‐ray absorption spectroscopy, X‐ray diffraction and scattering spectroscopy, which are powerful tools to characterize actinide materials. In addition, advanced SR techniques for exploring future advanced nuclear fuel cycles dealing with actinides are illustrated as well.

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Section: Synchrotron Radiation X‐ray Fluorescence (Sr‐xrf) For Elemenmentioning

confidence: 99%

Exploring Actinide Materials Through Synchrotron Radiation Techniques

et al. 2014

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“…A rapid X-ray absorption near edge spectrometry (XANES) method has been developed and applied successfully to map Pu species 271 273 based on XANES spectra alone, were overcome by parallel application of EXAFS to the samples. The combination of information from X-ray absorption spectrometry and chromatography coupled to mass spectrometry, for speciation analysis in environmental samples, has been reviewed 116 (91 references).…”

Section: High Resolution Micro-pixe Images Of Leaves From the Ni Hyperaccumulatormentioning

confidence: 99%

Atomic spectrometry update. Environmental analysis

Butler

Cairns

Cook

et al. 2011

J. Anal. At. Spectrom.

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“…That individual particle analysis lead to conclusions on mixtures with other elements, as well as additional information on environmental impact and source term characterization. Another accident with a weapon in Thule, Greenland used μ--XANES [22,123]. Microfocus XANES showed that uranium was in the tetravalent state, while plutonium was either in the tetravalent state or in a 1:2 mixture of the tetravalent:hexavalent states.…”

Section: Introductionmentioning

confidence: 99%

Molecular Forensic Science Analysis of Nuclear Materials

Reilly

2012

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Concerns over the proliferation and instances of nuclear material in the environment have increased interest in the expansion of nuclear forensics analysis and attribution programs. A new related field, molecular forensic science (MFS) has helped meet this expansion by applying common scientific analyses to nuclear forensics scenarios. In this work, MFS was applied to three scenarios related to nuclear forensics analysis. In the first, uranium dioxide was synthesized and aged at four sets of static environmental conditions and studied for changes in chemical speciation. The second highlighted the importance of bulk versus particle characterizations by analyzing a heterogeneous industrially prepared sample with similar techniques. In the third, mixed uranium/plutonium hot particles were collected from the McGuire Air Force Base BOMARC Site and analyzed for chemical speciation and elemental surface composition. This work has identified new signatures and has indicated unexpected chemical behavior under various conditions. These findings have lead to an expansion of basic actinide understanding, proof of MFS as a tool for nuclear forensic science, and new areas for expansion in these fields. v At each step in my life, I have considered myself lucky. I have worked hard, but the credit should go to my friends and family. Without their help, love, and support, I would not have completed this journey. I came from small beginnings, but with the support my parents, Dave and Lisa Reilly; I have come this far and will continue to honor them, my many friends, colleagues, and mentors by continuing to further myself as a scientist and person. vi TABLE OF CONTENTS ABSTRACT .

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Nondestructive Spectrometric Study on a Radioactive Particle Embedded in a Marine Sediment

Cited by 7 publications

References 11 publications

Exploring Actinide Materials Through Synchrotron Radiation Techniques

Exploring Actinide Materials Through Synchrotron Radiation Techniques

Atomic spectrometry update. Environmental analysis

Molecular Forensic Science Analysis of Nuclear Materials

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