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Study of iodine releases from epoxy and polyurethane paints under irradiation and development of a new model of iodine-Epoxy paint interactions for PHEBUS and PWR severe accident applications


A new model of iodine-Epoxy paint interaction under irradiation has been developed with new relevant data to better reproduce and predict how much iodine could be released in the environment in case of a severe accident in a Pressurized Water Reactor. Its application to the modelling of volatile iodine behaviour in PHEBUS-FPT-3 test is presented and shows that other phenomena might govern the iodine volatility in the mid and long term. A broader analysis of the gaseous iodine behaviour is finally presented, highlighting the need to identify and model new gaseous chemical reactions that might play a significant role on iodine volatility.

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Authors acknowledge the OECD hosting the STEM project, the STEM partners for their support (Electricité De France, the Atomic Energy of Canada Limited, the Teknologian tutkimuskeskus VTT (Finland), Ústav Jaderného výzkumu Řež a.s (Czech Republic), The Gesellschaft für Anlagen—und Reaktorsicherheit (Germany), The Korea Atomic Energy Research Institute, The Korea Institute for Nuclear Safety and The US Nuclear Regulatory Commission) and the European Commission for having supported the ISTP project. Authors also acknowledge Jean BACCOU for his fruitful and kind contribution to the estimation of the uncertainties propagation with probabilistic tools and Karine CHEVALIER-JABET for her help in the estimation of the containment temperature evolution during a nuclear reactor accident. The acknowledgements are also addressed to the “EPICUR team” for its contribution to the experimental work.

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Correspondence to Loïc Bosland.

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Bosland, L., Colombani, J. Study of iodine releases from epoxy and polyurethane paints under irradiation and development of a new model of iodine-Epoxy paint interactions for PHEBUS and PWR severe accident applications. J Radioanal Nucl Chem 314, 1121–1140 (2017).

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  • Iodine
  • Epoxy paint
  • Polyurethane paint
  • Kinetics
  • Severe accident