Title: Specific Low Temperature Release of 131Xe from Irradiated MOX Fuel
Authors: HIERNAUT Jean-PolWISS ThierryRONDINELLA VincenzoCOLLE Jean-YvesSASAHARA A.SONODA T.KONINGS Rudy
Citation: JOURNAL OF NUCLEAR MATERIALS vol. 392 p. 434-438
Publisher: ELSEVIER SCIENCE BV
Publication Year: 2009
JRC N°: JRC56551
ISSN: 0022-3115
URI: http://www.elsevier.com/locate/jnucmat
http://publications.jrc.ec.europa.eu/repository/handle/JRC56551
DOI: 10.1016/j.jnucmat.2009.04.002
Type: Articles in Journals
Abstract: A particular low temperature behaviour of the 131Xe isotope was observed during release studies of fission gases from MOX fuel samples irradiated at 44.5 GWd/tHM. A reproducible release peak, representing 2.7% of the total release of the only 131Xe, was observed at ~1000 K, the rest of the release curve being essentially identical for all the other xenon isotopes. The integral isotopic composition of the different xenon isotopes is in very good agreement with the inventory calculated using ORIGEN-2. The presence of this particular release is explained by the relation between the thermal diffusion and decay properties of the various iodine radioisotopes decaying all into xenon.
JRC Institute:Institute for Transuranium Elements

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