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    Accident management
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    Joint project
    Advanced Thermal-hydraulic Test Loop for Accident Simulation (ATLAS) Project

    View of the ATLAS experimental loop. KAERI, Korea

    The Advanced Thermal-hydraulic Test Loop for Accident Simulation (ATLAS) Project was referenced in The Fukushima Daiichi Nuclear Power Plant Accident...

    Accident analysis and management Thermal hydraulics Nuclear safety research CSNI Accident management …
    Published date: 25 November 2022
    News
    Advancing computational fluid dynamics for nuclear reactor safety

    The 9th edition of the Computational Fluid Dynamics for Nuclear Reactor Safety workshop was hosted by Texas A&M University on 20-22 February 2023. 

    News brief United States WGAMA Nuclear safety Nuclear safety research Multiphysics Modelling and simulation CFD Accident management …
    Published date: 23 March 2023
    NEA Document
    An Account of the OECD LOFT Project - May 1990
    NEA/CSNI(1990)181
    English Accident analysis and management Fuel cycle facility safety Nuclear safety research CSNI Safety of components and structures Codes and programs Risk Safety research Risk assessment Verification and validation Validation Accident management …
    Published date: 7 May 2010
    Joint project
    Analysis of Information from Reactor Building and Containment Vessel and Water Sampling in Fukushima Daiichi NPS (ARC-F) project

    Investigation for damage condition and radiation dose in Unit 3 at Fukushima Daiichi Nuclear Power Station of Tokyo Electric Power Company Holdings (December 2019). Photo: Japan Nuclear Regulation Au...

    Fukushima Accident analysis and management Nuclear safety research Accident management
    Published date: 19 October 2022
    Joint project
    Behaviour of Iodine Project (BIP)

    The NEA Behaviour of Iodine Project (BIP) was created to provide separate effects and modelling studies of iodine behaviour in a nuclear reactor containment building following a severe accident. This...

    Fuel in nuclear safety Risk assessment Accident analysis and management Nuclear safety research CSNI Joint project Safety Safety of components and structures Accident management Safety research …
    Published date: 2 April 2020
    Publications and Reports
    Benchmark Study of the Accident at the Fukushima Daiichi Nuclear Power Plant

    Understanding the accident at the Fukushima Daiichi Nuclear Power Plant is important for safe and timely decommissioning of the reactors. This objective, together with the development of better compu...

    English Fukushima Benchmark Accident management
    Published date: 28 September 2021
    NEA Document
    Benchmark Study of the Accident at the Fukushima Daiichi Nuclear Power Plant (BSAF Project): Phase I Summary Report
    NEA/CSNI/R(2015)18

    In 2012, following a proposal from Japan, the Committee on the Safety of Nuclear Installations (CSNI) decided to initiate a joint project to conduct a study of the accident progression for the Fukush...

    English Decommissioning Fukushima Accident analysis and management Decommissioning and legacy management Fuel cycle facility safety External hazards and nuclear safety Nuclear safety research CSNI Joint project Safety of components and structures Benchmark Accident management …
    Published date: 1 March 2015
    Joint project
    Benchmark Study of the Accident at the Fukushima Daiichi Nuclear Power Station (BSAF) Project

    Units 1 and 2 End of Fukushima Daiichi Nuclear Power Station of Tokyo Electric Power Company Holdings (4th October, 2011). Photo: Tokyo Electric Power Company Holdings

    The Benchmark Study of the Acci...

    Accident analysis and management Thermal hydraulics Nuclear safety research CSNI Accident management …
    Published date: 25 November 2022
    Joint project
    Bubbler Condenser Project

    There are several VVER-440/213* type nuclear power plants operating in the Czech Republic, Hungary, Slovak Republic, Russia and Ukraine. VVER-440/213 pressurised water reactors (PWRs) have a pressure...

    Risk assessment Accident analysis and management Fuel cycle facility safety Nuclear safety research Joint project Safety of components and structures Accident management Pressurised water reactors Risk …
    Published date: 22 April 2020
    Publications and Reports
    Building a Framework for Post-Nuclear Accident Recovery Preparedness

    More than ten years after the Fukushima Daiichi Nuclear Power Plant accident, many lessons have been learnt that have helped improve preparedness for nuclear emergencies and awareness of the global r...

    English Radiological protection in nuclear or radiological emergencies Radiological protection Environmental protection Fukushima Chernobyl WPNEM CRPPH Radiological protection EGRM Accident management Emergency preparedness and response …
    Published date: 18 May 2022
    Joint project
    Experimental Thermal Hydraulics for Analysis, Research and Innovations in NUclear Safety (ETHARINUS) Project

    PKL facility. Photo: FRAMATOME, Germany

    The Experimental Thermal Hydraulics for Analysis, Research and Innovations in Nuclear Safety (ETHARINUS) project serves the objectives of investigating phenome...

    Accident analysis and management Thermal hydraulics Nuclear safety research Accident management
    Published date: 9 December 2022
    Joint project
    Experiments on Source Term for Delayed Releases (ESTER) Project

    CHIP experimental facility to study fission product transport and deposition in the primary circuit. Photo: IRSN

    Following several years of experimental research in the field of source terms analysis...

    Accident analysis and management Nuclear safety research CSNI Joint project Accident management …
    Published date: 21 October 2022
    Activity
    Expert Group on a Post-Accident Food Safety Framework (EGFSF)

    The experience mostly derived from Chernobyl and Fukushima post-accident situations has shown that the management of contaminated food after such nuclear disasters can lead to a number of public heal...

    Radiological protection EGFSF CRPPH Food Accident management …
    Published date: 9 June 2022
    Joint project
    Fukushima Daiichi Nuclear Power Station Accident Information Collection and Evaluation (FACE) Project

    Appearance of Unit 1 and 2 reactor buildings at Fukushima Daiichi Nuclear Power Station of Tokyo Electric Power Company Holdings (June 2022). Photo: Japan Nuclear Regulation Authority

    The FACE projec...

    Fukushima Accident analysis and management Nuclear safety research CSNI Joint project Accident management …
    Published date: 17 October 2022
    NEA Document
    Implementation of Severe Accident Management Measures, ISAMM 2009: Workshop Proceedings, Vol. I
    NEA/CSNI/R(2010)10/VOL1

    A joint workshop of the Working Group on the Analysis and Management of Accidents (WGAMA) and the Working Group on Risk Assessment (WGRISK) on implementation of severe accident management (SAM) measu...

    English WGAMA WGRISK Nuclear safety research CSNI Proceedings Accident management …
    Published date: 3 December 2010
    NEA Document
    Implementation of Severe Accident Management Measures, ISAMM 2009: Workshop Proceedings, Vol. II
    NEA/CSNI/R(2010)10/VOL2

    A joint workshop of the Working Group on the Analysis and Management of Accidents (WGAMA) and the Working Group on Risk Assessment (WGRISK) on implementation of severe accident management (SAM) measu...

    English WGAMA WGRISK Nuclear safety research CSNI Proceedings Accident management …
    Published date: 3 December 2010
    News
    Improving planning and preparedness for post-accident recovery

    The NEA Expert Group on Recovery Management (EGRM) held a meeting on 6 May 2021.

    News brief Radiological protection in nuclear or radiological emergencies Radiological protection Fukushima WPNEM Japan EGRM Accident management Emergency preparedness and response …
    Published date: 7 May 2021
    Publications and Reports
    Long-Term Management and Actions for a Severe Accident in a Nuclear Power Plant

    As the Fukushima Daiichi nuclear power plant (NPP) accident illustrates, many challenges have to be faced in maintaining safety over the long term in a damaged NPP following a severe accident. These ...

    English Three Mile Island Fukushima WGAMA Chernobyl Accident analysis and management Nuclear safety research CSNI Accident management …
    Published date: 29 April 2021
    News
    Long-term management and reliability of reactor core and containment cooling systems

    The NEA Working Group on Analysis and Management of Accidents (WGAMA) organised a specialist workshop entitled “Reactor core and containment cooling systems: Long-term management and reliability (RCC...

    News brief WGAMA Accident analysis and management Nuclear safety research Safety of components and structures Accident management …
    Published date: 29 October 2021
    Publications and Reports
    Management of Radioactive Waste after a Nuclear Power Plant Accident

    The NEA Expert Group on Fukushima Waste Management and Decommissioning R&D (EGFWMD) was established in 2014 to offer advice to the authorities in Japan on the management of large quantities of on-sit...

    English Decommissioning Three Mile Island EGFWMD Fukushima Stakeholder Radioactive waste management International co-operation Accident management …
    Published date: 2 December 2016
    Publications and Reports
    NEA News 38.1

    NEA News is the professional journal of the Nuclear Energy Agency (NEA). It features articles on the latest nuclear energy issues concerning the economic and technical aspects of nuclear energy, nucl...

    English Physics Nuclear energy data Public health Environmental protection Cost estimation Fukushima Disposal International co-operation Radioactive waste Radioactive waste management NSC Webinar Cost control Data Bank Nuclear economics Accident management …
    Published date: 1 October 2020
    Publications and Reports
    NEA News 38.2

    NEA News is the professional journal of the Nuclear Energy Agency (NEA). It features articles on the latest nuclear energy issues concerning the economic and technical aspects of nuclear energy, nucl...

    English Public health Fukushima Nuclear safety International co-operation Radiological protection Radioactive waste Radioactive waste management Webinar Generation III reactors Cost control Nuclear economics Accident management …
    Published date: 15 July 2021
    News
    NEA to launch report on post nuclear accident recovery preparedness

    “Building a Framework for Post Nuclear Accident Recovery Preparedness: National-Level Guidance” report will will be presented and discussed at a web event on 23 May 2022

    News brief Radiological protection in nuclear or radiological emergencies Radiological protection EGRM Accident management Emergency preparedness and response …
    Published date: 14 March 2022
    News
    New expert group to work on post-accident food safety management

    The EGFSF will work on harmonising post-accident food safety management approaches to build and maintain producer and retailer’s accountability and consumer trust.

    News brief EGFSF Food Radiological protection Accident management …
    Published date: 27 June 2022
    News
    Nuclear emergency planning, response and recovery

    Nuclear emergency planning, response and recovery

    News brief Radiological protection in nuclear or radiological emergencies WPNEM Accident management Emergency preparedness and response …
    Published date: 30 November 2022
    NEA Document
    Nuclear Safety Research in OECD Countries: Support Facilities for Existing and Advanced Reactors (SFEAR)
    NEA/CSNI/R(2007)6

    This report provides an overview of experimental facilities that can be used to address nuclear safety research issues in OECD member countries, and identifies priorities for organising international...

    English Risk assessment Accident analysis and management Fuel cycle facility safety Nuclear safety research CSNI Joint project Advanced reactors Accident management Risk …
    Published date: 1 January 2007
    Publications and Reports
    OECD Nuclear Energy Agency (NEA) follow-up to the TEPCO Fukushima Daiichi nuclear accident

    The NEA has undertaken a number of activities following the March 2011 accident at the Fukushima Daiichi nuclear power plant in Japan. This brochure contains three extracts from NEA News published in...

    English Liability and compensation Nuclear safety regulation Accident management
    Published date: 27 June 2012
    Joint project
    Plant Safety Monitoring and Assessment System (PLASMA) Project

    Under an agreement with the Japan Atomic Energy Research Institute, (JAERI), the NEA supported an international research project with the goal of developing a plant safety monitoring and assessment s...

    Risk assessment Accident analysis and management Nuclear safety research Joint project Accident management Pressurised water reactors Safety research …
    Published date: 22 April 2020
    Other
    Post-Fukushima Action Implementation at Nuclear Installations - Appendix A: Regulatory Authority Responses to Phase 1 Information Request

    Summaries of actions taken and questionnaire responses regarding human and organisational factors addressed by these actions.

    English WGHOF Fukushima Human and organisational factors Human and organisational factors Accident management …
    Published date: 17 January 2023
    Other
    Post-Fukushima Action Implementation at Nuclear Installations - Appendix B - Phase 2 Responses

    Human and organisational factors lessons learnt implementing post-Fukushima actions

    English WGHOF Fukushima Human and organisational factors Human and organisational factors Accident management …
    Published date: 17 January 2023
    Publications and Reports
    Post-Fukushima Action Implementation at Nuclear Installations: Human and Organisational Factors Lessons Learnt

    In the aftermath of the Fukushima Daiichi accident in March 2011, nuclear regulators, industry organisations, and operating companies across the globe began the process of understanding the lessons l...

    English WGHOF Fukushima Human and organisational factors Japan Human and organisational factors Accident management …
    Published date: 17 January 2023
    News
    Post-Fukushima Daiichi accident nuclear safety project FACE begins

    The new project assembled global experts at the NEA.

    News brief Fukushima Nuclear safety Accident management
    Published date: 25 July 2022
    News
    Prevention, mitigation and management of potential accidents in nuclear power plants

    Prevention, mitigation and management of potential accidents in nuclear power plants

    News brief CFD WGAMA Accident analysis and management CSNI Accident management …
    Published date: 5 October 2022
    News
    Prevention, mitigation and management of potential accidents in nuclear power plants

    The NEA Working Group on the Analysis and Management of Accidents (WGAMA) held its annual meeting virtually on 13-15 September 2021 to discuss its ongoing work and activities related to potential acc...

    News brief Accident analysis and management Nuclear safety research Accident management Safety research …
    Published date: 1 October 2021
    Joint project
    Primary Coolant Loop Test Facility (PKL) Project

    PKL facility. Photo: FRAMATOME, Germany

    The Primärkreislauf-Versuchsanlage (Primary Coolant Loop Test Facility [PKL]) is a facility owned and operated by Framatome GmbH (formerly AREVA NP) in Erlange...

    Accident analysis and management Thermal hydraulics Nuclear safety research Accident management
    Published date: 20 December 2022
    NEA Document
    Proposal to Set Up an Expert Group on Integrated Management of Accident-Oriented Radioactive Waste under the OECD/NEA RWMC
    NEA/RWM(2014)6

    This document proposes the creation of an expert group on the integrated management of accident-oriented radioactive waste, which would produce valuable insights on the management of accident-oriente...

    English Radioactive waste management Characterisation EGFWMD RWMC Legacy management Accident management …
    Published date: 12 March 2014
    News
    Regulators reflect on lessons learnt 10 years on from Fukushima accident

    NEA and NRA held joint conference on regulators' views in Tokyo, Japan 10 years after TEPCO Fukushima Daiichi NPS Accident. 

    DG statement Fukushima Nuclear safety Japan Accident management …
    Published date: 12 December 2022
    NEA Document
    Requirements for CFD-Grade Experiments for Nuclear Reactor Thermal Hydraulics
    NEA/CSNI/R(2020)3

    When looking for a validation experiment for CFD application to reactor simulation for either design or safety studies, it appears that available data often suffer from a lack of local measurements, ...

    CFD WGAMA Nuclear safety Safety assessment CSNI Safety Accident management Reactor design …
    Published date: 17 February 2022
    Joint project
    Rod Bundle Heat Transfer (RBHT) Project

    Photo: RBHT Test Facility. US NRC.

    Modelling reactor core behaviour under accident conditions with delayed re-introduction of cooling water (commonly referred to as reflood) is a challenge for safety...

    Accident analysis and management Thermal hydraulics Nuclear safety research Accident management
    Published date: 13 December 2022
    NEA Document
    Second Specialist Meeting on Operator Aids for Severe Accident Management: Summary and Conclusions
    NEA/CSNI/R(1997)27

    Lyon, France, 8-10 September 1997

    English Accident analysis and management Nuclear safety research CSNI Joint project Accident management …
    Published date: 1 January 1997
    News
    Specialist Workshop on Advanced Measurement Method and Instrumentation for Enhancing Severe Accident Management in a Nuclear Power Plant

    Specialist Workshop on Advanced Measurement Method and Instrumentation for Enhancing Severe Accident Management in a Nuclear Power Plant

    News brief Accident analysis and management Nuclear safety research Accident management Safety research …
    Published date: 17 December 2020
    NEA Document
    Summary and Conclusions of the Joint PKL-ATLAS Workshop on Analytical Activities Related to the NEA PKL-4 and ATLAS-2 Projects
    NEA/CSNI/R(2020)13

    Since 2001, the NEA has supported the Senior Expert Group on Safety Research Thermal-hydraulics (SETH), the Primärkreislauf-Versuchsanlage - Primary Coolant Loop Test Facility (PKL), PKL-2 and PKL-3 ...

    Accident analysis and management Thermal hydraulics Nuclear safety research CSNI Accident management …
    Published date: 23 November 2022
    News
    Sustainable recovery after a nuclear accident

    Around 90 radiological protection professionals and researchers, representing regulators, research institutions and government entities from NEA member countries and beyond, joined Preparedness for P...

    Radiological protection in nuclear or radiological emergencies Radiological protection Fukushima Chernobyl Radiological protection IRPS EGRM Accident management …
    Published date: 24 November 2022
    Joint project
    THAI Experiments on Mitigation measures, and source term issues to support analysis and further Improvement of Severe accident management measures (THEMIS) Project

    In the wake of the THAI project, conducted in three phases from 2007 until 2019, a new project, "THAI Experiments on Mitigation measures, and source term issues to support analysis and further Improv...

    Fission products Accident analysis and management Thermal hydraulics Nuclear safety research Joint project Accident management …
    Published date: 11 May 2021
    Joint project
    Thermal-hydraulics, Hydrogen, Aerosols and Iodine (THAI) Project

    The experimental investigations carried out in the frame of the THAI (2007-2009) and THAI-2 (2011-2014) projects contributed significantly to improve the understanding of hydrogen and fission-product...

    Fission products Accident analysis and management Thermal hydraulics Nuclear safety research Joint project Accident management …
    Published date: 18 February 2022
    NEA Document
    TMI-2 Analysis Exercise Final Report
    NEA/CSNI/R(1991)8

    Three Mile Island Unit 2 Analysis Exercise Final Report

    English Accident analysis and management Fuel cycle facility safety Nuclear safety research Safety assessment CSNI Joint project Safety Safety of components and structures Risk assessment Probabilistic risk assessment Accident management …
    Published date: 1 January 1991
    Event
    Webinar on building a framework for post-nuclear accident recovery preparedness: National-level guidance
    23 May 2022
    Online

    The Nuclear Energy Agency (NEA) held an online event to launch its new report Building a Framework for Post Nuclear Accident Recovery Preparedness: National-Level Guidance.

    This report was produced b...

    Radiological protection in nuclear or radiological emergencies Environmental protection Fukushima Chernobyl WPNEM CRPPH Radiological protection regulation and implementation Radiological protection science and policy Webinar EGRM Accident management Emergency preparedness and response …
    Published date: 1 June 2022
    Activity
    Working Group on Analysis and Management of Accidents (WGAMA)

    The Working Group on the Analysis and Management of Accidents (WGAMA) is responsible for activities related to potential accidental situations in nuclear power plants, including the following technic...

    Risk assessment WGAMA Accident analysis and management Nuclear safety research CSNI Safety Accident management Risk …
    Published date: 9 January 2023
    Event
    Workshop on Developments in Fuel Cycle Facilities (FCFs) after the Fukushima Daiichi Nuclear Power Station (NPS) Accident
    15 - 18 November 2016
    Aomori City, Japan

    The Nuclear Energy Agency (NEA) Committee on the Safety of Nuclear Installations (CSNI) Working Group on Fuel Cycle Safety (WGFCS) held an international workshop on Developments in Fuel Cycle Facilit...

    Risk assessment Fukushima Accident analysis and management WGFCS Fuel cycle facility safety Nuclear safety research CSNI Safety Safety of components and structures Accident management …
    Published date: 4 May 2020
    Event
    Workshop on preparedness for post-nuclear accident recovery
    27 - 28 October 2022
    Headquarters of the Institute of Radiological Protection and Nuclear Safety (IRSN) - Fontenay-aux-Roses, France

    The NEA Committee on Radiological Protection and Public Health (CRPPH) through its Expert Group on Recovery Management (EGRM) invited all interested stakeholders to a workshop Preparedness for post-n...

    Environmental protection Fukushima Chernobyl CRPPH EGRM Radiological protection Accident management Emergency preparedness and response …
    Published date: 14 November 2022
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