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|Title:||Specific Low Temperature Release of 131Xe from Irradiated MOX Fuel|
|Authors:||HIERNAUT Jean-Pol; WISS Thierry; RONDINELLA Vincenzo; COLLE Jean-Yves; SASAHARA A.; SONODA T.; KONINGS Rudy|
|Citation:||JOURNAL OF NUCLEAR MATERIALS vol. 392 p. 434-438|
|Publisher:||ELSEVIER SCIENCE BV|
|Type:||Articles in periodicals and books|
|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 Directorate:||Nuclear Safety and Security|
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