Title: Summary of the Euratom Collaborative Project FIRST-Nuclides and Conclusions for the Safety Case
Authors: KIENZLER B.DURO LARALEMMENS KARELMETZ V.DE PABLO J.VALLS ALBAWEGEN DETLEFJOHNSON LAWRENCESPAHIU KASTRIOT
Citation: NUCLEAR TECHNOLOGY vol. 198 no. 3 p. 260-276
Publisher: AMER NUCLEAR SOC
Publication Year: 2017
JRC N°: JRC102740
ISSN: 0029-5450
URI: http://www.ans.org/pubs/journals/nt/a_40962
http://publications.jrc.ec.europa.eu/repository/handle/JRC102740
DOI: 10.1080/00295450.2017.1326271
Type: Articles in periodicals and books
Abstract: A consortium of 10 partners from 7 European countries and the European Commission collaborated in investigating the release of the first batch of radionuclides from disposed spent nuclear fuel upon canister failure (fast/instant release). The Collaborative Project FIRST-Nuclides was implemented in the scope of the 7th Euratom Framework Programme in the period from 2012 to 2014. The objectives and organization of the project is presented as well as the experiments with highly radioactive materials under investigations. The outcome of the project summarizes the measured instant release fraction (IRF) of safety relevant isotopes from high burn-up spent UO2 nuclear fuels (SNF). Specifically discussed are the dependences of the IRF on the sample properties, the gap and grain boundary releases and the behavior and IRF of elements like selenium. IRF of non-standard SNF was investigated also. The summary is complemented by the presentation of the modelling approaches within the project.
JRC Directorate:Nuclear Safety and Security

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