Aerosols created by the vaporization of simulated spent nuclear fuel (simfuel) were produced by laser heating techniques and characterised by a wide range of post-analyses. In particular attention has been focused on determining the fission product behaviour in the aerosols, in order to improve the evaluation of the source term and consequently the risk associated with release from spent fuel sabotage or accidents.
Different simulated spent fuels were tested with burn-up up to 8 at. %. The results from the aerosol characterisation were compared with studies of the vaporization process by Knudsen Effusion Mass Spectrometry and thermochemical equilibrium calculations. These studies permit an understanding of the aerosol gaseous precursors and the gaseous reactions taking place during the aerosol formation process.
DI LEMMA Fidelma;
COLLE Jean-Yves;
RASMUSSEN Gert;
KONINGS Rudy;
2015-07-14
ELSEVIER SCIENCE BV
JRC92867
0022-3115,
https://publications.jrc.ec.europa.eu/repository/handle/JRC92867,
10.1016/j.jnucmat.2015.06.002,
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