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    Fission products
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    Joint project
    Thermodynamic Characterisation of Fuel Debris and Fission Products Based on Scenario Analysis of Severe Accident Progression (TCOFF)

    Image: Microscopic examination of U-bearing particles collected at Fukushima-Daiichi, JAEA

    TCOFF Phases

    First Phase (2017-2020)

    The Thermodynamic Characterisation of Fuel Debris and Fission Products ...

    Nuclear science Fission products Fukushima Thermodynamic data Nuclear safety research Safety research …
    Published date: 5 May 2025
    Joint project
    THAI Experiments on Mitigation measures, and source term issues to support analysis and further Improvement of Severe accident management measures (THEMIS) Project

    Multi-compartment THAI+ test facility, Becker Technologies GmbH.

     

    In the wake of the NEA THAI project, conducted in three phases from 2007 until 2019, a new project, THAI Experiments on Mitigation m...

    Fission products Accident analysis and management Thermal hydraulics Hydrogen Nuclear safety research Joint project Accident management …
    Published date: 4 February 2025
    News
    Improving thermodynamic modelling for the analysis of severe accidents

    TCOFF-2 members met to discus the ongoing activities.

    News brief Nuclear science Fission products Fukushima Nuclear safety research Joint project Safety research Thermodynamic data Nuclear science Accident Tolerant Fuels …
    Published date: 16 October 2024
    News
    Improving cross-disciplinary and transversal skills for the severe accidents community

    “Improving Cross-disciplinary and Transversal Skills for the Severe Accidents Community” approved by NEST Management Board.

    News brief Nuclear science Fission products Education Nuclear Education, Skills and Technology (NEST) Framework Nuclear safety research Joint project Safety research Thermodynamic data TCOFF Training …
    Published date: 18 December 2023
    News
    Progress in advanced fuel cycles and partitioning and transmutation

    The NEA hosted the 16th edition of information exchange meetings on actinide and fission product partitioning and transmutation (16IEMPT).

    Nuclear fuel WPFC News brief Fission products Actinides Nuclear science Nuclear fuel cycle Partitioning and transmutation Minor actinides …
    Published date: 22 November 2023
    Event
    16th Information Exchange Meeting on Actinide and Fission Product Partitioning and Transmutation (16IEMPT)
    24 - 27 October 2023
    NEA Headquarters, Boulogne-Billancourt, France

    The NEA organised the 16th Information Exchange Meeting on Actinide and Fission Product Partitioning and Transmutation (16IEMPT) on 24-27 October 2023. The meeting was held at the NEA offices in Boul...

    Nuclear fuel WPFC Fission products Chemistry Actinides Advanced reactors Minor actinides NSC Back-end Nuclear fuel cycle Partitioning and transmutation Fuel cycle physics and chemistry …
    Published date: 20 February 2025
    Joint project
    Thermal-hydraulics, Hydrogen, Aerosols and Iodine (THAI) Project

    Scheme of the THAI+ facility, Becker Technologies.

     

    The experimental investigations carried out in the frame of the THAI (2007-2009), THAI-2 (2011-2014) and THAI-3 (2016-2019) projects contributed s...

    Fission products Accident analysis and management Thermal hydraulics Nuclear safety research Joint project Accident management …
    Published date: 2 October 2023
    Joint project
    Loss-of-fluid Test (LOFT) Project

    View looking down onto the LOFT reactor

     

    The Loss-of-fluid Test (LOFT) Research Programme was originally set up by the US Nuclear Regulatory Commission. Part of the programme was later broadened int...

    Fission products Accident analysis and management Thermal hydraulics Nuclear safety research Joint project Accident management Safety research …
    Published date: 2 October 2023
    NEA Document
    OECD/NEA THAI-3 Project Final Report on Fission Product Behaviour, Hydrogen Mitigation, and Hydrogen Combustion in Water Cooled Reactors under Severe Accident Conditions
    NEA/CSNI/R(2021)8

    The objective of the NEA THAI-3 project was to address open questions concerning the behaviour of hydrogen, iodine and aerosols under severe accident conditions in the containment of water cooled rea...

    Fission products Accident analysis and management Thermal hydraulics Nuclear safety research Joint project …
    Published date: 28 August 2023
    NEA Document
    Treatment of Volatile Fission Products
    NEA/NSC/R(2022)4

    Under the auspices of the NEA Nuclear Science Committee (NSC), the Working Party on Scientific Issues of Advanced Fuel Cycles (WPFC) was established to co-ordinate scientific activities related to ad...

    Fission products Spent fuel Nuclear science Nuclear fuel cycle EGFRW Fuel cycle physics and chemistry …
    Published date: 29 November 2022
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