Zobrazeno 1 - 10 of 28 pro vyhledávání: '"J. G. Tobin"'
1
Akademický článek
The Limitations of 5f Delocalization and Dispersion
Autor: J. G. Tobin, S. Nowak, S. W. Yu, R. Alonso-Mori, T. Kroll, D. Nordlund, T. C. Weng, D. Sokaras
Publikováno v: Applied Sciences, Vol 11, Iss 9, p 3882 (2021)
Delocalization in the 5f states of the actinides is an important phenomenon, but poorly quantified. Here, the fundamental limitations of 5f dispersion measurements using angle and momentum resolved variants of photoelectron spectroscopy will be discu
Externí odkaz: https://doaj.org/article/6ef9e454439f41fa8febe81c9f8248ce
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2
Akademický článek
Towards the Quantification of 5f Delocalization
Autor: J. G. Tobin, S. Nowak, S.-W. Yu, R. Alonso-Mori, T. Kroll, D. Nordlund, T.-C. Weng, D. Sokaras
Publikováno v: Applied Sciences, Vol 10, Iss 8, p 2918 (2020)
By using M4,5 X-ray Emission Spectroscopy (XES) in the tender X-ray regime, it is possible to quantify 5f delocalization in the actinides. Previous analyses, utilizing the Branching Ratio (BR) in the N4,5 X-ray Absorption Spectroscopy (XAS), could no
Externí odkaz: https://doaj.org/article/31ec12e2deff41b58a345ba2e9ab03fd
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5
Adapting FEFF to 5f angular momentum coupling
Autor: J. G. Tobin, S.-W. Yu
Publikováno v: Journal of Vacuum Science & Technology A. 41:033201
It is demonstrated here that the spectral simulation program FEFF can be adapted to include the effects of 5f total angular momentum coupling in the fluorite actinide dioxide systems ThO2, UO2, and PuO2. N4,5 x-ray absorption spectra produced with th
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::822779ad81b536b052df06e9e7ed9446
https://doi.org/10.1116/6.0002420
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6
Thorium model and weak 5f delocalization
Autor: J. G. Tobin, S. Nowak, S.-W. Yu, P. Roussel, R. Alonso-Mori, T. Kroll, D. Nordlund, T.-C. Weng, D. Sokaras
Publikováno v: Journal of Vacuum Science & Technology A. 40:033205
Recently, it was demonstrated that an empirical model based on bremsstrahlung isochromat spectroscopy of elemental thorium (Th) could be used to explain the experimental results and unoccupied 5f electronic structure for simple localized actinide sys
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::90340435795c96585fc8f62f4ed37bc4
https://doi.org/10.1116/6.0001754
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7
An Anonymous Referee Report
Autor: J. G. Tobin
This is a combined experimental and theoretical study of the compound UO2, UO2(NO3)2(H20)6 and UO0.75Pu0.25O2, using resonant inelastic x-ray scattering (RXIS), high resolution x-ray absorption (XAS) and LDA and LDA-U calculations.
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::e78cb0ef71373accefe1c998aef6d668
https://doi.org/10.2172/1251079
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9
An internal report: Electron Spectroscopy of the Oxidation and Aging of U and Pu
Autor: J. G. Tobin
Uranium and Plutonium are highly reactive elements that undergo not only chemical reactions but also nuclear reactions. This can lead to possibly significant materials degradation, a matter of potentially great concern. Here, the issue of the electro
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::6add07b0d1f2ff0c40c34af794de37c5
https://doi.org/10.2172/1184100
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