EPICUR: Electro-polished stainless steel irradiation vessel connected through electro-polished stainless-steel tubes to an iodine filtration system.
START: thermal gradient tube made of quartz or stainless steel
EPCUR: Rate of iodine volatilization through gamma spectrometry;
START: pressure, wall temperatures, carrier gas flow
rate, amount and identification of Ru species,
EPICUR: Temperature, relative humidity, initial concentration of iodine deposited on the sample surface.
START:steam-air mixture at different ratios, e type of thermal gradient (“abrupt”
or “smooth”) in the tube, and the tube material (quartz or stainless steel)
Source Term Evaluation and Mitigation (STEM) project.
References: [1]
https://www.oecd-nea.org/jcms/pl_25255/source-term-evaluation-and-mitigation-stem-project
[2] G. Severine, B. Loic, J. Didier, et al., Radiolytic oxidation of iodine in the containment at high temperature and dose rate, International conference: Nuclear energy for new europe 2007, Portoroz, Slovenia, September 10-13
[3] M. Ohnet, O. Leroy, K. Boucault, C. Gomez, Ruthenium Transport in the RCS in case of a PWR Severe Accident: a Parametric Study, 27th International conference nuclear energy for new europe 2018, Portoroz, Slovenia, September 10-13
[4] NEA, Improving Evaluations of Source Terms for Severe Accidents at Nuclear Installations: Final Report of the Source Term Evaluation and Mitigation Project (STEM), OECD Publishing, Paris, 2020
[5] NEA, Proceedings of the Workshop on Source Term: A Report by the Committee on the Safety of Nuclear Installations Working Group on the Analysis and Management of Accidents, OECD Publishing, Paris, 2022
[6] NEA, International Iodine Workshop: Full Proceedings, pp. 38-41 and 172-179. OECD Publishing, Paris, 2016
[7] L. Bosland et al., Modeling of the decomposition of iodine oxides aerosols (IOx) in the containment - Consequences on the understanding of volatile iodine behaviour in the containment, Progress in Nuclear Energy, 180, 105576, 2025,
https://doi.org/10.1016/j.pnucene.2024.105576
[8] L.E. Herranz, Recent advances in the source term area within the SARNET European severe accident research network, Nuclear Engineering and Design, Volume 288, Pages 56-74, 2015,
https://doi.org/10.1016/j.nucengdes.2015.03.014