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Title: Experimental evidence of Xe incorporation in Schottky defects in UO{sub 2}

We report here the direct experimental observation of the preferential xenon incorporation site in uranium dioxide and analyse how its incorporation evolves with the annealing temperature. We show that High Energy Resolution Fluorescence Detection X-ray Absorption Near Edge Structure in combination with first-principles calculations enable a precise determination of the Xe incorporation site. Our finding provides important insight for the understanding and modeling of noble gases behavior in nuclear oxide fuel.
Authors:
 [1] ;  [2] ; ; ; ; ; ;  [1] ;  [3]
  1. CEA, DEN, DEC, F-13108 Saint Paul Lez Durance Cedex (France)
  2. (France)
  3. European Synchrotron Radiation Facility (ESRF), 6 Rue Jules Horowitz, BP 220, 38043 Grenoble Cedex 9 (France)
Publication Date:
OSTI Identifier:
22395781
Resource Type:
Journal Article
Resource Relation:
Journal Name: Applied Physics Letters; Journal Volume: 106; Journal Issue: 11; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; ABSORPTION; ANNEALING; DETECTION; ENERGY RESOLUTION; FLUORESCENCE; SCHOTTKY DEFECTS; TEMPERATURE DEPENDENCE; URANIUM DIOXIDE; X RADIATION; XENON