Lattice location of oxygen atoms in UO$_2$ single crystals leached in water
| Autor: | Hj. Matzke, Jacek Jagielski, Lech Nowicki, C. Choffel, Andrzej Turos, Lionel Thomé, Frédérico Garrido |
|---|---|
| Přispěvatelé: | Centre de Spectrométrie Nucléaire et de Spectrométrie de Masse (CSNSM), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11) |
| Jazyk: | angličtina |
| Rok vydání: | 1997 |
| Předmět: |
010302 applied physics
Nuclear and High Energy Physics Chemistry Uranium dioxide Monte Carlo method chemistry.chemical_element 02 engineering and technology Uranium 021001 nanoscience & nanotechnology 01 natural sciences Oxygen chemistry.chemical_compound Oxygen atom Lattice (order) 0103 physical sciences Wet oxidation Atomic physics 0210 nano-technology Instrumentation Row |
| Zdroj: | Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms Nuclear Instruments and Methods in Physics Research B International Conference on Ion Beam Analysis 13 International Conference on Ion Beam Analysis 13, Jul 1997, Lisbon, Portugal. pp.447-452 |
| ISSN: | 0168-583X |
| Popis: | The effects of wet oxidation of (0 0 1)-oriented UO2 single crystals have been studied by means of the RBS/channeling technique. The O sublattice is analyzed by using the 16O(4He,4He)16O resonance at 3045 keV. A strong flux-peaking effect is observed in angular scans recorded for different tilt planes across the [0 0 1] axis. Based on the assumption of the formation of a superstructure, a two-dimensional-split row model has been developed. In this model all oxygen rows are split according to a cross consisting of five rows and every second uranium row is split into four rows. Monte Carlo simulations of channeling data confirm the model and provide indications about lattice location of atoms. |
| Databáze: | OpenAIRE |
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