Title: Structural Investigations on an Aged Americium Transmutation Fuel
Authors: WALTER MarcusSOMERS JOSEPHFERNANDEZ CARRETERO ASUNCIONHAAS DIDIERDARDENNE P.DENECKE M.
Citation: JOURNAL OF NUCLEAR MATERIALS vol. 362 p. 343-349
Publisher: ELSEVIER SCIENCE BV
Publication Year: 2007
JRC N°: JRC37952
URI: http://publications.jrc.ec.europa.eu/repository/handle/JRC37952
Type: Contributions to Conferences
Abstract: Within the EFTTRA-T4 project a MgAl2O4 based inert matrix fuel for 241Am transmutation was produced in 1996. Am L3-edge EXAFS of the annealed material indicate that Am is present as AmAlO3. During 10 years of storage the material accumulated self-irradiation damage and no AmAlO3 X-ray diffraction features can be observed, indicating amorphization of the aged material by the corresponding cumulative a-damage of 2.9 . 1019 g1 AmAlO3. The Am L3-edge EXAFS of the amorphous AmAlO3 shows that structural order is limited to the first oxygen shell around Am, where the rhombohedral splitting in three sub-shells is still present. Evidence for a single Al atom in the next shell is found at an Am–Al distance of 3.28A.
JRC Institute:Institute for Transuranium Elements

Files in This Item:
There are no files associated with this item.


Items in repository are protected by copyright, with all rights reserved, unless otherwise indicated.