Uranium isotopic ratio measurements of U 3 O 8  reference materials by atom probe tomography

Fahey, A. J.; Perea, Daniel E.; Bartrand, Jonah; Arey, Bruce W.; Thevuthasan, Suntharampillai

doi:10.1016/j.jenvrad.2015.12.018

Cited by 7 publications

(17 citation statements)

References 13 publications

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“…The atom probe provides a unique tool for investigating the nanoscale isotopic composition of minerals. Benchmarking of atom probe analysis of U isotopes in certified U 3 O 8 reference materials has shown that major isotopic ratios agree with known compositional values (Fahey et al ) and there are comparative thermal ion mass spectrometry (TIMS) and atom probe studies that show that Re‐Os analysis by atom probe may yield similar, though less precise, ages to more traditional TIMS analyses (Daly et al ). A number of studies have also investigated the mechanisms that can affect the distribution of radiogenic 207 Pb/ 206 Pb ratios in zircon (Figure ; Valley et al , , Peterman et al , Blum et al ), baddeleyite (White et al , Moser et al ) and monazite (Fougerouse et al , Seydoux‐Guillaume et al ).…”

Section: Geoscience Applicationsmentioning

confidence: 99%

“…Since the development of laser‐assisted APT, there has been growing interest in applying nanoscale geochemical characterisation to a broad range of geological materials including glass (Gin et al , Hellmann et al , Gin et al ), diamond (Heck et al , Lewis et al , Schirhagl et al , Mukherjee et al ), Fe‐Ni metal alloys (Einsle et al ) and silicides (Gopon et al ), platinum‐group alloys (Parman et al , Daly et al , ), oxides (Bachhav et al , , Fahey et al , Taylor et al , Frierdich et al , Gamal El Dien et al , Genareau et al , Taylor et al ), carbonates (Felmy et al , Branson et al , Pérez‐Huerta et al , Pérez‐Huerta and Laiginhas ), sulfides (Fougerouse et al , Dubosq et al , Fougerouse et al , Gopon et al , Wu et al ), sulfates (Weber et al ), zeolites (Schmidt et al ) and rock‐forming silicates, such as feldspars (White et al , Cao et al ) and olivine (Bloch et al , Cukjati et al , Figure ). However, a high proportion of the published APT work to date has focussed on trace element mobility, particularly Pb, in accessory minerals.…”

Section: Geoscience Applicationsmentioning

confidence: 99%

“…, Hellmann et al 2015, Gin et al 2017, diamond(Heck et al 2014, Lewis et al 2015, Schirhagl et al 2015, Mukherjee et al 2016, Fe-Ni metal alloys(Einsle et al 2018) and silicides(Gopon et al 2017), platinum-group alloys(Parman et al 2015, Daly et al 2017, oxides(Bachhav et al 2011, Fahey et al 2016, Taylor et al 2018, Frierdich et al 2019, Gamal El Dien et al 2019, Genareau et al 2019, Taylor et al 2019, carbonates(Felmy et al 2015, Branson et al 2016, P erez- Huerta et al 2016, P erez-Huerta and Laiginhas 2018, sulfides, Dubosq et al 2019, Gopon et al 2019, Wu et al 2019, sulfates(Weber et al 2016), zeolites(Schmidt et al 2019) and rock-forming silicates, such as feldspars(White et al 2018c, Cao et al 2019) and olivine(Bloch et al 2019, Cukjati et al 2019 …”

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confidence: 99%

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Atom Probe Tomography: Development and Application to the Geosciences

Reddy

Saxey

Rickard

et al. 2020

Geostandard Geoanalytic Res

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Atom probe tomography (APT) is an analytical technique that provides quantitative three‐dimensional elemental and isotopic analyses at sub‐nanometre resolution across the whole periodic table. Although developed and mostly used in the materials science and semiconductor fields, recent years have seen increasing development and application in the geoscience and planetary science disciplines. Atom probe studies demonstrate compositional complexity at the nanoscale and provide fundamental new insights into the atom‐scale mechanisms taking place in minerals over geological time. Here, we provide an overview of APT, including the historical development and technical aspects of the instrumentation, and the fundamentals of data acquisition, data processing and data reconstruction. We also review previous studies and highlight the potential future applications of nanoscale geochemical studies of natural materials.

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Section: Geoscience Applicationsmentioning

confidence: 99%

Section: Geoscience Applicationsmentioning

confidence: 99%

mentioning

confidence: 99%

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Atom Probe Tomography: Development and Application to the Geosciences

Reddy

Saxey

Rickard

et al. 2020

Geostandard Geoanalytic Res

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“…Conversely, APM has been employed to test the nanoscale homogeneity of existing geostandards [47]. Others have also reported comparisons between APM chemical and isotopic compositions with those from standard materials or other well-characterised samples [26,28,32]. Initiatives have also been undertaken to develop standard approaches to the application of APM within the geosciences, including the proposed standardisation of data reporting [48].…”

Section: Reference Materials and Standardisationmentioning

confidence: 99%

Atomic worlds: Current state and future of atom probe tomography in geoscience

et al. 2018

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Atom Probe Microscopy (APM) is rapidly finding new applications within the geosciences. Historically connected with materials science and semiconductor device applications, recent years have seen an exciting trend as APM has proved a useful tool for nanoscale geochemistry, as it offers unique capabilities when compared with the current suite of conventional geoanalytical techniques. The ability to characterize 3D nanoscale chemistry with isotopic sensitivity, and correlate these results with other analytical techniques, has uncovered intricate details of complex trace element distributions within a variety of minerals and has opened the door to nanoscale isotope geochemistry. Already these advances are having an impact on long-standing questions within geochronology, planetary science and many other fields of research. As this trend gathers pace, we present here a brief summary of the current status of APM geoscience applications and discuss the likely future directions in this developing research space.

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“…The accuracy for interelement and isotopic analyses can frequently exceed ±10% relative error and may not be reproducible between replicate measurements on the same material. 13 , 36 [Percent relative error is here defined as 100% × (measured value – reference value)/reference value.]…”

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confidence: 99%

Atom Probe Mass Spectrometry of Uranium Isotopic Reference Materials

et al. 2020

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Atom probe tomography (APT)-based isotopic analyses are becoming increasingly attractive for analysis applications requiring small volumes of material and sub-micrometer length scales, such as isotope geochemistry, nuclear safety, and materials science. However, there is an open question within the atom probe community as to the reliability of atom probe isotopic and elemental analyses. Using our proposed analysis guidelines, in conjunction with an empirical calibration curve and a machine learning-based adaptive peak fitting algorithm, we demonstrate accurate and repeatable uranium isotopic analyses, via atom probe mass spectrometry, on U 3 O 8 isotopic reference materials. By using isotopic reference materials, each measured isotopic abundance value could be directly compared to a known certified reference value to permit a quantitative statement of accuracy. The isotopic abundance measurements for 235 U and 238 U in each individual APT sample were consistently within ±1.5% relative to the known reference values. The accuracy and repeatability are approaching values consistent with measurements limited primarily by Poisson counting statistics, i.e., the number of uranium atoms recorded.

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Uranium isotopic ratio measurements of U 3 O 8 reference materials by atom probe tomography

Cited by 7 publications

References 13 publications

Atom Probe Tomography: Development and Application to the Geosciences

Atom Probe Tomography: Development and Application to the Geosciences

Atomic worlds: Current state and future of atom probe tomography in geoscience

Atom Probe Mass Spectrometry of Uranium Isotopic Reference Materials

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