Výsledky vyhledávání - "Adam M, Olsen"

Impact of Controlled Storage Conditions on the Hydrolysis and Surface Morphology of Amorphous-UO3

Autor: Alexandria Brenkmann, Adam M. Olsen, Luther W. McDonald, Michael R. Klosterman, Alexa B. Hanson, Cody A. Nizinski, Ian J. Schwerdt, Sean Heffernan, Nicholas J. Mecham, Erik C. Abbott, Rachel Nicholls Lee, Sean Martinson

Publikováno v: ACS Omega
ACS Omega, Vol 6, Iss 12, Pp 8605-8615 (2021)

The hydration and morphological effects of amorphous (A)-UO3 following storage under varying temperature and relative humidity have been investigated. This study provides valuable insight into U-oxide speciation following aging, the U-oxide quantitat

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::049b178fb6aac1560f3eeb4813422d3d
http://europepmc.org/articles/PMC8015116

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A response surface model of morphological changes in UO₂ and U₃O₈ following high temperature aging

Autor: Luther W. McDonald, Alex Jolley, Adam M. Olsen, Ian J. Schwerdt, Nick Halverson, Bryony Richards

Publikováno v: Radiochimica Acta. 107:449-458

The morphological changes that take place during the processing and storage of uranium oxides can provide valuable information on the processing history and storage conditions of an interdicted sample. In this study microstructural changes in two ura

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::e96ebd04faecc34c640eef8efc9196c6
https://doi.org/10.1515/ract-2018-3040

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A new approach for quantifying morphological features of U3O8 for nuclear forensics using a deep learning model

Autor: Luther W. McDonald, Reid B. Porter, Cuong Ly, Tolga Tasdizen, Kari Sentz, Ian J. Schwerdt, Adam M. Olsen

Publikováno v: Journal of Nuclear Materials. 517:128-137

Morphological features have proven to be a useful signature in determining the process histories of uranium oxides. Historically, morphological analysis has relied on using image analysis software to segment fully visible particles in Scanning Electr

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::23253f155611c101cb773e0b88a419e9
https://doi.org/10.1016/j.jnucmat.2019.01.042

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Quantification of high temperature oxidation of U3O8 and UO2

Autor: Bryony Richards, Ian J. Schwerdt, Luther W. McDonald, Adam M. Olsen

Publikováno v: Journal of Nuclear Materials. 508:574-582

A response surface design of experiment (DOE) was developed to model crystallographic changes of UO2 and α-U3O8 after aging at elevated temperatures in controlled oxygen environments. Crystallographic changes to UO2 and α-U3O8 were quantified using

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::e2ea7f540262805e141f4ee67745fc32
https://doi.org/10.1016/j.jnucmat.2018.06.025

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Nuclear forensics investigation of morphological signatures in the thermal decomposition of uranyl peroxide

Autor: Sean Heffernan, Michael R. Klosterman, Ian J. Schwerdt, Adam M. Olsen, Robert Lusk, Trenton Kirkham, Sean Martinson, Luther W. McDonald, Bryce Collins

Publikováno v: Talanta. 176:284-292

The analytical techniques typically utilized in a nuclear forensic investigation often provide limited information regarding the process history and production conditions of interdicted nuclear material. In this study, scanning electron microscopy (S

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::414288f19acc526d72173fc4e657b211
https://doi.org/10.1016/j.talanta.2017.08.020

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Quantifying Morphological Features of α-U3O8 with Image Analysis for Nuclear Forensics

Autor: Robert Lusk, Luther W. McDonald, Bryony Richards, Sean Heffernan, Ian J. Schwerdt, Elizabeth Jurrus, Christy E. Ruggiero, Adam M. Olsen, Braxton Smith

Publikováno v: Analytical Chemistry. 89:3177-3183

Morphological changes in U3O8 based on calcination temperature have been quantified enabling a morphological feature to serve as a signature of processing history in nuclear forensics. Five separate calcination temperatures were used to synthesize α

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::bb53ba38a78d0b975c5027f6b44d6efd
https://doi.org/10.1021/acs.analchem.6b05020

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