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|Title:||A separate effect study of the influence of metallic fission products on CsI radioactive release from nuclear fuel|
|Authors:||DI LEMMA FIDELMA; COLLE Jean-Yves; BENES ONDREJ; KONINGS Rudy|
|Citation:||JOURNAL OF NUCLEAR MATERIALS vol. 465 p. 499-508|
|Publisher:||ELSEVIER SCIENCE BV|
|Type:||Articles in periodicals and books|
|Abstract:||The chemistry of cesium and iodine is of main importance to quantify the radioactive release in case of a nuclear reactor accident, or sabotage involving irradiated nuclear materials.We studied the interaction of CsI with different metallic fission products such as Mo and Ru. These elements can be released from nuclear fuel when exposed to oxidising conditions, as in the case of contact of overheated nuclear fuel with air (e.g. in a spent fuel cask sabotage, uncovering of a spent fuel pond, or air ingress accidents). Experiments were performed by vaporizing mixtures of the compounds in air, and analysing the produced aerosols in view of a possible gasegas and gaseaerosol reactions between the compounds. These results were compared with the gaseous species predicted by thermochemical equilibrium calculations and experimental equilibrium vaporization tests using Knudsen Effusion Mass Spectrometry.|
|JRC Directorate:||Nuclear Safety and Security|
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