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    Activity
    Working Group on Fuel Safety (WGFS)

    The main mission of the Working Group on Fuel Safety (WGFS) is to advance the current understanding and address cross-cutting issues related to fuel behaviour in accident conditions, including work o...

    Fuel in nuclear safety Nuclear fuel Fuel studies WGAMA WGFCS Fuel cycle facility safety Nuclear safety research CSNI Safety WGFS …
    Published date: 19 May 2022
    NEA Document
    Cable Ageing in Nuclear Power Plants: Report on the First and Second Terms (2012-2017) of the NEA Cable Ageing Data and Knowledge (CADAK) Project
    NEA/CSNI/R(2018)8

    The number of ageing nuclear power plants (NPPs) is increasing in NEA member countries. Accordingly, maintenance programmes, in-service inspection and testing of structures, systems and components im...

    English Nuclear safety research CSNI Safety of components and structures
    Published date: 6 December 2018
    NEA Document
    Comparison of Methodologies for the Simulation of Electrical Systems in Nuclear Power Plants: Working Group on Electrical Power Systems Activity 3 Report
    NEA/CSNI/R(2018)10

    One of the major conclusions of this workshop was that simulation of electrical systems has not been adequately discussed at the international level despite the fact that it is used more and more fre...

    English WGELEC Nuclear safety research CSNI
    Published date: 19 February 2019
    NEA Document
    Resolving Complex Safety Relevant Issues Related to Hydrogen Release in Nuclear Power Plant Containments During a Postulated Severe Accident
    NEA/CSNI/R(2018)11

    This is a summary report by the Hydrogen Mitigation Experiments for Reactor Safety (HYMERES) project on the PANDA and MISTRA experiments.

    Phase 1 of the Project, between 2013 and 2016, focused on imp...

    English Nuclear safety research CSNI Joint project
    Published date: 23 November 2018
    NEA Document
    Comparison of Probabilistic Seismic Hazard Analysis of Nuclear Power Plants in Areas with Different Levels of Seismic Activity
    NEA/CSNI/R(2019)1
    Seismic hazards remain an important factor that nuclear power plant designers and operators worldwide must take into account. Therefore, the Working Group on the Integrity and Ageing of Components a...
    English WGIAGE Nuclear safety research CSNI
    Published date: 3 June 2019
    NEA Document
    Main Results of the MASCA1 and 2 Projects: Integrated Report
    NEA/CSNI/R(2007)15

    The Material Scaling (MASCA) Project investigated in-vessel phenomena during a severe accident. In particular, it addressed the influence of the chemical composition of the molten corium on the heat ...

    English Risk assessment Accident analysis and management Nuclear safety research CSNI Joint project Safety of components and structures Safety research …
    Published date: 1 June 2007
    NEA Document
    Main Results of the First Phase of MASCA Project: Integrated Report
    NEA/CSNI/R(2004)23

    The focus of the Material Scaling (MASCA) Project was to investigate in detail the chemical behaviour of corium in contact with structural materials, with emphasis mainly on steel. This report provid...

    English Nuclear safety research CSNI Joint project Safety research …
    Published date: 1 November 2004
    NEA Document
    Final Report of the PKL Experimental Program Within the OECD/SETH Project
    NEA/CSNI/R(2004)24

    At its annual meeting in December 1999, the Committee on the Safety of Nuclear Installations (CSNI) issued a recommendation to set up an international collaborative project in the field of thermal-hy...

    English Accident analysis and management Nuclear safety research CSNI Joint project …
    Published date: 1 December 2004
    NEA Document
    Seismic Input Motions Incorporating Recent Geological Studies: Workshop Proceedings
    NEA/CSNI/R(2004)22

    The Committee on the Safety of Nuclear Installations (CSNI) workshop on “Seismic Input Motions Incorporating Recent Geological Studies” was held in Tsukuba, Japan on 15-17 November 2004, and was host...

    English WGIAGE Nuclear safety research CSNI Proceedings …
    Published date: 14 February 2005
    NEA Document
    Third International Conference on Fatigue of Reactor Components
    NEA/CSNI/R(2004)21

    The Third International Conference on Fatigue of Reactor Components held in Seville, Spain on 3-6 October 2004 was co-organised by the EPRI, the US NRC and the OECD NEA Committee on the Safety of Nuc...

    English WGIAGE Nuclear safety research CSNI Safety of components and structures Proceedings …
    Published date: 5 January 2005
    NEA Document
    Nuclear Power Plant Components and Structures under Severe Accident Loading (COSSAL)
    NEA/CSNI/R(2019)2

    In the face of severe accident scenarios with melted core material, such as those that occurred at Three Mile Island-2 in 1979 and at Fukushima Daiichi in 2011, the integrity assessment of primary ci...

    English WGIAGE Nuclear safety research CSNI
    Published date: 16 August 2019
    NEA Document
    Nuclear Power Plant Components and Structures under Severe Accident Loading (COSSAL): Final Report (Appendices)
    NEA/CSNI/R(2019)2/ADD1

    This is a companion document to the final report of the COSSAL project. It includes appendices which address participant responses to a questionnaire, the data of the problem statement on the large-s...

    English WGIAGE Nuclear safety research CSNI
    Published date: 16 August 2019
    NEA Document
    OECD/SERENA Project Report – Summary and Conclusions
    NEA/CSNI/R(2014)15

    The SERENA Project Integration Report summarises the outcome of a broad range of activities conducted in the framework of the OECD Nuclear Energy Agency (NEA) Steam Explosion Resolution for Nuclear A...

    English WGAMA Accident analysis and management Nuclear safety research CSNI Joint project …
    Published date: 1 February 2015
    NEA Document
    Post-BEMUSE Reflood Model Input Uncertainty Methods (PREMIUM) Benchmark Phase II: Identification of Influential Parameters
    NEA/CSNI/R(2014)14

    The objective of the Post-BEMUSE Reflood Model Input Uncertainty Methods (PREMIUM) Benchmark is to progress on the issue of the quantification of the uncertainty of the physical models in system ther...

    English WGAMA Nuclear safety research CSNI Benchmark …
    Published date: 23 February 2015
    NEA Document
    Extension of CFD Codes Application to Two-Phase Flow Safety Problems – Phase 3
    NEA/CSNI/R(2014)13

    This document is an extension of the NEA/SEN/SIN/AMA(2006)2 report produced by the Writing Group 3 on the extension of CFD to two-phase flow safety problems, which was formed following the recommen...

    English CFD WGAMA Nuclear safety research CSNI …
    Published date: 1 November 2014
    NEA Document
    Assessment of CFD Codes for Nuclear Reactor Safety Problems – Revision 2
    NEA/CSNI/R(2014)12

    Following recommendations made at an exploratory meeting of experts to define an action plan on the application of Computational Fluid Dynamics (CFD) codes to nuclear reactor safety (NRS) problems, h...

    English CFD WGAMA Nuclear safety research CSNI …
    Published date: 16 January 2015
    NEA Document
    Best Practice Guidelines for the Use of CFD in Nuclear Reactor Safety Applications – Revision
    NEA/CSNI/R(2014)11

    In May 2002, an exploratory meeting of experts to define an action plan on the application of Computational Fluid Dynamics (CFD) Codes to nuclear reactor safety problems was held in Aix-en-Provence, ...

    English CFD WGAMA Nuclear safety research CSNI Best practices …
    Published date: 12 February 2015
    NEA Document
    Leaking Fuel Impacts and Practices
    NEA/CSNI/R(2014)10

    The impact of leaking fuel rods on the operation of nuclear power plants and the practices of handling leaking fuel has been reviewed by the CSNI Working Group on Fuel Safety (WGFS) in order to promo...

    English Nuclear safety research CSNI WGFS
    Published date: 18 July 2014
    NEA Document
    Status Report on Hydrogen Management and Related Computer Codes
    NEA/CSNI/R(2014)8

    At the 14th plenary meeting of the Working Group on Analysis and Management of Accidents (WGAMA), a proposal for a status paper on hydrogen generation, transport and mitigation under severe accident ...

    English WGAMA Validation Nuclear safety research CSNI Codes and programs …
    Published date: 20 January 2015
    NEA Document
    Status Report on Filtered Containment Venting
    NEA/CSNI/R(2014)7

    The main objectives of this status report on FCVSs in OECD countries, as defined by the Working Group on Analysis and Management of Accidents (WGAMA), were to: compile the status on the implementatio...

    English WGAMA Nuclear safety research CSNI
    Published date: 2 July 2014
    NEA Document
    Improving Robustness Assessment Methodologies for Structures Impacted by Missiles (IRIS_2012): Final Report
    NEA/CSNI/R(2014)5

    The Committee on the Safety of Nuclear Installations (CSNI) approved in December 2008 a proposal of the Working Group on Integrity and Ageing of Components and Structures (WGIAGE) to conduct a round ...

    English Nuclear safety research CSNI Benchmark
    Published date: 27 August 2014
    NEA Document
    Improving Robustness Assessment Methodologies for Structures Impacted by Missiles (IRIS_2012): Final Report
    NEA/CSNI/R(2014)5/ADD1

    A round robin exercise (RRE) on Improving the Robustness Assessments Methodologies for Structures Impacted by Missiles (IRIS-2012) was instituted jointly by IRSN, France and CNSC, Canada based on exp...

    English WGIAGE Nuclear safety research CSNI Benchmark …
    Published date: 30 June 2014
    NEA Document
    CFD for Nuclear Reactor Safety Applications (CFD4NRS-4): Workshop Proceedings
    NEA/CSNI/R(2014)4

    Following the CFD4NRS workshops held in Garching, Germany (September 2006), Grenoble, France (September 2008) and Washington D.C., USA (September 2010), this workshop, held in Daejeon, Korea on 10-12...

    English Modelling and simulation CFD Nuclear safety research CSNI Proceedings …
    Published date: 14 February 2014
    NEA Document
    Containment Code Validation Matrix
    NEA/CSNI/R(2014)3

    This report initially provides a brief overview of the main features of a PWR, BWR, CANDU and VVER reactors. It also provides an overview of the ex-vessel corium retention (core catcher) and a genera...

    English CFD Nuclear safety research CSNI
    Published date: 23 May 2014
    NEA Document
    Non-destructive Evaluation of Thick-walled Concrete Structures
    NEA/CSNI/R(2014)1

    This NEA WGIAGE workshop was held in Prague, Czech Republic on17-19 September 2013, with the objective to present and discuss the state-of-the-art techniques for the integrity assessment of concrete ...

    English WGIAGE Nuclear safety research CSNI Proceedings …
    Published date: 30 January 2015
    NEA Document
    Benchmarking of Fast-running Software Tools Used to Model Releases During Nuclear Accidents
    NEA/CSNI/R(2015)19

    The objective of this joint WGAMA-WPNEM activity was to benchmark software tools used to estimate consequences of accidents at nuclear facilities. Two aspects of accident consequences were considered...

    English WGAMA WPNEM Nuclear safety research CSNI Benchmark …
    Published date: 1 January 2016
    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
    NEA Document
    Workshop on Collection and Analysis of Common-Cause Failures due to External Factors: International Common-Cause Failure Data Exchange (ICDE) Project Report
    NEA/CSNI/R(2015)17

    In the light of the TEPCO Fukushima accident, this report documents a study performed on a set of common-cause failure (CCF) events due to external factors, meaning that not only storms and hurricane...

    English Accident analysis and management Safety of electrical systems Nuclear safety research Ancillary data CSNI Joint project Safety Safety of components and structures Safety research Risk assessment …
    Published date: 20 October 2015
    NEA Document
    Human Performance under Extreme Conditions with Respect to a Resilient Organisation: International Workshop Proceedings
    NEA/CSNI/R(2015)16

    The workshop took place in Brugg, Switzerland on 24-26 February 2014. It was conducted with participation of a number of invited key speakers from academic research and a range of industries, includi...

    English WGHOF Human and organisational factors Nuclear safety research CSNI Proceedings …
    Published date: 20 October 2015
    NEA Document
    Workshop on Testing Probabilistic Seismic Hazard Analysis Results and the Benefits of Bayesian Techniques
    NEA/CSNI/R(2015)15

    This workshop, held in Pavia, Italy on 4-6 February 2015, was the fourth in a series of NEA meetings (Tokyo, Japan, August 1999, Jeju, Korea, November 2006, Lyon, France, April 2008), dedicated to pr...

    English WGIAGE Nuclear safety research CSNI Proceedings …
    Published date: 7 September 2015
    NEA Document
    Collection and Analysis of Fire Events (2010-2013) – Extensions in the Database and Applications: Fire Project Report
    NEA/CSNI/R(2015)14

    The Committee on the Safety of Nuclear Installations (CSNI) Working Group on Risk Assessment (WGRISK) (formerly PWG5) established in 1996 a Task Group to review the status and maturity of methods use...

    English WGRISK Nuclear safety research CSNI Probabilistic risk assessment …
    Published date: 16 December 2015
    NEA Document
    Questionnaire on Long-Term Operation of Commercial Nuclear Power Plants
    NEA/CSNI/R(2015)13

    This report was written by members of the Working Group on Integrity and Ageing of Components and Structures (WGIAGE) of the NEA, and the members of the metal subgroup were responsible for developing...

    English WGIAGE Nuclear safety research LTO CSNI …
    Published date: 22 December 2015
    NEA Document
    Collection and Analysis of Common-cause Failures of Heat Exchangers: International Common-cause Failure Data Exchange (ICDE) Project Report
    NEA/CSNI/R(2015)11

    This report documents a study performed on a set of ICDE events related to heat exchangers. The events studied here had been collected in the ICDE database. Organisations from Canada, Germany, Japan,...

    English Accident analysis and management Safety of electrical systems Nuclear safety research Ancillary data CSNI Joint project Safety Safety of components and structures Safety research Risk assessment …
    Published date: 1 April 2013
    NEA Document
    A Review of Current Calculation Methods Used to Predict Damage from High Energy Arcing Fault (HEAF) Events
    NEA/CSNI/R(2015)10

    Due to the potential safety significance of HEAF events the NEA initiated a project to provide an in-depth investigation on such events in NEA member states. The general objective of the study was to...

    English WGIAGE Nuclear safety research CSNI
    Published date: 9 June 2015
    NEA Document
    Joint CSNI/CNRA Strategic Plan and Mandates: 2011-2016
    NEA/CSNI/R(2011)1/REV1

    This Joint Strategic Plan for the Committee on Nuclear Regulatory Activities (CNRA) and the Committee on the Safety of Nuclear Installations (CSNI) takes into account the evolving status of the nucle...

    English CNRA Nuclear safety research CSNI Nuclear safety regulation …
    Published date: 25 February 2013
    NEA Document
    CSNI Operating Plan: 2011-2016
    NEA/CSNI/R(2011)2

    The Operating Plan describes CSNI responsibility and organisation, overall scope of work and working methods, and is supplemented by the so-called CSNI Activity Report, which contains a description o...

    English Nuclear safety research CSNI
    Published date: 19 April 2011
    NEA Document
    Safety Margin Evaluation – SMAP Framework Assessment and Application
    NEA/CSNI/R(2011)3

    In 1998, the Committee on Nuclear Regulatory Activities (CNRA) issued a report on future nuclear regulatory challenges which discussed the potential erosion of safety margins as an area for further r...

    English Nuclear safety research CSNI
    Published date: 30 November 2011
    NEA Document
    Report of the OECD/NEA-Vattenfall T-Junction Benchmark Exercise
    NEA/CSNI/R(2011)5

    The OECD/NEA-Vattenfall T-Junction Benchmark was initiated to test the ability of state-of-the-art computational fluid dynamics (CFD) codes to predict the important parameters affecting high-cycle th...

    English CFD Nuclear safety research CSNI Benchmark …
    Published date: 12 May 2011
    NEA Document
    Technical Basis for Commendable Practices on Ageing Management: SCC and Cable Ageing Project (SCAP) – Final Report
    NEA/CSNI/R(2010)15

    Two subjects – stress corrosion cracking (SCC) and degradation of cable insulation – were selected as the focus of the SCC and Cable Ageing Project (SCAP) due to their relevance for plant ageing asse...

    English Nuclear safety research CSNI
    Published date: 13 April 2011
    Publications and Reports
    NEA brochure

    The brochure provides background information about the NEA.

    English Nuclear law Human aspects of nuclear safety Nuclear law Radiological protection Nuclear science Nuclear economics Nuclear technology Regulation Decommissioning and legacy management Radioactive waste management Nuclear safety research Radiological protection Technology Safety research Radioactive waste management Human action Data Bank Nuclear safety regulation Nuclear economics …
    Published date: 10 September 2018
    NEA Document
    EC-JRC/OECD-NEA Benchmark Study on Risk-Informed In-Service Inspection Methodologies (RISMET)
    NEA/CSNI/R(2010)13

    The idea of a benchmark study on risk-informed in-service inspection (RI-ISI) was initially developed within a subgroup of the ENIQ Task Group on Risk. The preliminary JRC project proposal was endors...

    English WGIAGE Nuclear safety research CSNI Benchmark …
    Published date: 26 January 2011
    NEA Document
    Experimental Facilities for Sodium Fast Reactor Safety Studies: Task Group on Advanced Experimental Facilities (TAREF)
    NEA/CSNI/R(2010)12

    In 2007, the NEA Committee on the Safety of Nuclear Installations (CSNI) completed a study on Nuclear Safety Research in OECD Countries: Support Facilities for Existing and Advanced Reactors (SFEAR) ...

    English Nuclear safety research CSNI
    Published date: 1 January 2011
    NEA Document
    In-Vessel Coolability: Workshop Proceedings, in Collaboration with EC-SARNET
    NEA/CSNI/R(2010)11

    Severe accident management guidelines (SAMGs) increase focus on containment integrity after some progression in the course of a severe accident. This change in priorities is made according to criteri...

    English WGAMA Nuclear safety research CSNI Proceedings …
    Published date: 18 January 2011
    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
    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
    Core Exit Temperature (CET) Effectiveness in Accident Management of Nuclear Power Reactor
    NEA/CSNI/R(2010)9

    The Task on the Core Exit Temperature (CET) thermocouple effectiveness in Accident Management (AM) was initiated based on a discussion held by the NEA’s Committe on the Safety of Nuclear Installation...

    English WGAMA Nuclear safety research CSNI
    Published date: 26 November 2010
    NEA Document
    Identifying and Overcoming Barriers to Effective Consideration of Human and Organisational Factors in Event Analysis and Root Cause Analysis: Workshop Proceedings
    NEA/CSNI/R(2010)8

    An NEA specialists’ meeting “Identifying and Overcoming Barriers to Effective Consideration of Human and Organisational Factors in Event Analysis and Root Cause Analysis” was held in Paris, France on...

    English WGHOF Nuclear safety research CSNI Proceedings …
    Published date: 8 March 2011
    NEA Document
    OECD/NEA Pipe Failure Data Exchange (OPDE) Project: 2002-2008 Status Report
    NEA/CSNI/R(2009)19

    Several OECD member countries agreed to establish the OECD/NEA Piping Failure Data Exchange Project (OPDE) to encourage multilateral co-operation in the collection and analysis of data relating to de...

    English Nuclear safety research CSNI Probabilistic risk assessment
    Published date: 5 November 2009
    Joint project
    Component Operational Experience, Degradation and Ageing Programme (CODAP)

    The Component Operational Experience, Degradation and Ageing Programme (CODAP) combines the follow-up of two previous NEA projects: the Pipe Failure Data Exchange Project (OPDE) and the stress corros...

    Fuel in nuclear safety Risk assessment Accident analysis and management Nuclear safety research Databases CSNI Safety Safety of components and structures Safety research …
    Published date: 29 April 2022
    NEA Document
    NEA CODAP Project Topical Report on Basic Principles of Collecting and Evaluating Operating Experience Data on Metallic Passive Components
    NEA/CSNI/R(2018)12

    Several NEA member countries have agreed to establish the Component Operational Experience, Degradation and Ageing Programme (CODAP) to encourage multilateral co-operation in the collection and analy...

    English Nuclear safety research CSNI
    Published date: 4 April 2019
    NEA Document
    Operating Experience Insights into Below Ground Piping at Nuclear Power Plants: A Topical Report by the NEA Component Operational Experience, Degradation and Ageing Programme
    NEA/CSNI/R(2018)2

    Structural integrity of piping systems is important for safety and operability of nuclear plants. In recognition of this, information on degradation and failure of piping components and systems is co...

    English Nuclear safety research CSNI PRG CSNI
    Published date: 24 May 2018
    NEA Document
    Operating Experience Insights into Pressure Boundary Component Reliability and Integrity Management: Topical Report by the Component Operational Experience, Degradation and Ageing Programme (CODAP) Group
    NEA/CSNI/R(2017)3

    This third topical report is concerned with the effectiveness of pressure boundary component reliability and integrity management (RIM). Specifically, this report addresses operating experience insig...

    English Nuclear safety research CSNI
    Published date: 15 January 2017
    NEA Document
    Operating Experience Insights into Pipe Failures for Electro-Hydraulic Control and Instrument Air Systems in Nuclear Power Plants
    NEA/CSNI/R(2015)6

    This Topical Report from the Component Operational Experience, Degradation and Ageing Programme (CODAP) addresses operating experience insights on two types of piping systems that have the following ...

    English Nuclear safety research CSNI
    Published date: 26 March 2015
    NEA Document
    CODAP Topical Report: Flow Accelerated Corrosion (FAC) of Carbon Steel and Low Alloy SteelPiping in Commercial Nuclear Power Plants
    NEA/CSNI/R(2014)6

    The Component Operational Experience, Degradation & Ageing Programme (CODAP) Topical Report on FAC of Carbon Steel and Low Alloy Steel Piping includes a primer on the environmental and operational fa...

    English Nuclear safety research CSNI Probabilistic risk assessment
    Published date: 20 January 2015
    NEA Document
    First-term Status Report for the Component Operational Experience Degradation and Ageing Programme (CODAP) (2011-2014)
    NEA/CSNI/R(2015)7

    CODAP is the continuation of the 2002-2011 “OECD/NEA Pipe Failure Data Exchange Project” (OPDE) and the work by the Stress Corrosion Cracking Working Group of the 2006–2010 “OECD/NEA SCC and Cable Ag...

    English Nuclear safety research CSNI
    Published date: 4 May 2015
    Event
    Workshop on uncertainties in the assessment of natural hazards (excluding earthquakes)
    19 - 21 April 2022
    Zoom - REGISTRATION CLOSED

    To meet the overall safety objectives and to achieve a balanced plant design, natural hazards have to be considered in the design of nuclear installations. Deriving the strength of such events from a...

    Risk assessment WGEV External hazards and nuclear safety Nuclear safety research CSNI …
    Published date: 15 April 2022
    NEA Document
    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
    NEA/CSNI/R(2020)4

    The investigation conducted in the last 15 years on different aspects of Source Term worldwide, and particularly in the context of the Nuclear Energy Agency (NEA) in the form of projects and the Work...

    English WGAMA Accident analysis and management Nuclear safety research CSNI …
    Published date: 14 April 2022
    Publications and Reports
    Reactivity-Initiated Accident Fuel Rod Codes Benchmark Phases I-III: Synthesis Report

    One of the key areas in fuel safety is the analysis of fuel behaviour under reactivity-initiated accident conditions. Reactivity-initiated accident fuel rod codes have been developed for a significan...

    Fuel in nuclear safety English Nuclear safety research CSNI WGFS …
    Published date: 13 April 2022
    Publications and Reports
    Harmonising the Nuclear Licensing Process for Emerging Technologies: A Global Path Forward

    Independent safety regulation has been a hallmark of the global nuclear power sector from its beginnings. Industry and government have long understood the importance of a predictable and adaptable re...

    English Nuclear safety Regulation Policy Brief Nuclear safety research CSNI Regulation of new and advanced reactors SMR Small modular reactors Advanced reactor systems CNRA Nuclear innovation Nuclear safety regulation …
    Published date: 7 April 2022
    News
    Specialists meeting on transient thermal-hydraulics in water cooled nuclear reactors

    The NEA Working Group on Analysis and Management of Accidents (WGAMA) organised a specialists’ meeting on transient thermal-hydraulics in water cooled nuclear reactors on 22-23 March 2022.

    News brief WGAMA Nuclear safety Accident analysis and management Thermal hydraulics …
    Published date: 6 April 2022
    Joint project
    QUENCH-ATF project

    Image: QUENCH facility at KIT. Court. KIT. 

    The purpose of the QUENCH-ATF project is to investigate the chemical, mechanical and thermal-hydraulics behaviour of ATF claddings in Design Basis Accident...

    Nuclear science Nuclear safety research Joint project Accident Tolerant Fuels Accident tolerant fuels …
    Published date: 1 April 2022
    Event
    Workshop on High Winds and Tornadoes Hazard Assessment and Protection of Nuclear Installations
    22 - 25 March 2022
    Videoconference, Zoom

    After the Fukushima nuclear accident, many activities were initiated in the countries with nuclear energy to assess the robustness of nuclear power plants with respect to earthquakes, tsunamis and fl...

    External hazards WGEV External hazards and nuclear safety Nuclear safety research CSNI …
    Published date: 29 March 2022
    News
    Fukushima Daiichi Nuclear Power Plant Accident: Message from Director-General Magwood

    Fukushima Daiichi Nuclear Power Plant Accident: Message from Director-General Magwood

    DG statement Human aspects of nuclear safety Radiological protection Fukushima Decommissioning and legacy management Nuclear safety research Nuclear safety regulation …
    Published date: 11 March 2022
    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
    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...

    Fuel in nuclear safety Fukushima Nuclear safety Accident analysis and management Nuclear safety research CSNI Joint project Safety Safety research Risk assessment Thermal hydraulics Accident management …
    Published date: 18 February 2022
    Publications and Reports
    The Strategic Plan of the Nuclear Energy Agency 2023-2028

    The OECD Nuclear Energy Agency (NEA) Strategic Plan serves as a guiding instrument that reflects the priorities of its member countries as the Agency addresses evolving needs in the exploration and a...

    English Nuclear law Human aspects of nuclear safety Nuclear law Radiological protection Nuclear science Nuclear safety Nuclear economics Nuclear technology Decommissioning and legacy management Nuclear decommissioning Radioactive waste management Nuclear safety research Safety Data Bank Nuclear safety regulation Nuclear economics …
    Published date: 25 January 2022
    Publications and Reports
    Methods for Assessing and Strengthening the Safety Culture of the Regulatory Body

    This report further explores some of the key elements presented in The Safety Culture of an Effective Regulatory Body (2016), commonly known as the NEA Green Booklet, and provides both an overview an...

    English Human aspects of nuclear safety Human and organisational factors Nuclear safety WGSC Nuclear safety research Safety culture Safety research CNRA Nuclear safety regulation …
    Published date: 10 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
    Activity
    Working Group on External Events (WGEV)

    The main mission of the Working Group on External Events (WGEV) is to improve the understanding and treatment of external hazards that would support the continued safety performance of nuclear instal...

    Risk assessment WGRISK External hazards WGEV External hazards and nuclear safety Nuclear safety research CSNI Safety Risk …
    Published date: 10 February 2022
    NEA Document
    Proceedings of the CFD for Nuclear Reactor Safety Applications (CF4NRS-3) Workshop
    NEA/CSNI/R(2011)14

    The OECD Nuclear Energy Agency developed an initiative to form writing groups of experts with the specific task of assessing the maturity of computational fluid dynamics (CFD) codes for nuclear reaco...

    English CFD WGAMA Nuclear safety research CSNI Proceedings …
    Published date: 1 February 2012
    NEA Document
    Nuclear Fuel Behaviour in Loss-of-coolant Accident (LOCA) Conditions: State-of-the-art Report
    NEA/CSNI/R(2009)15

    The present report has been prepared by the Committee on the Safety of Nuclear Installations (CSNI) Working Group on Fuel Safety (WGFS) and covers the following technical aspects:

    • description of dif...
    English State-of-the-art report Collective opinion Nuclear safety research Consensus position CSNI WGFS …
    Published date: 1 January 2009
    NEA Document
    Proceedings of the CSNI Workshop on Soil Structure Interaction (SSI) Knowledge and Effect on the Seismic Assessment of NPPs Structures and Components
    NEA/CSNI/R(2011)6

    In 2009, the Committee on the Safety of Nuclear Installations (CSNI) approved a proposal by the Working Group on Integrity and Ageing of Components and Structures (WGIAGE) to assess current knowledge...

    English WGIAGE Nuclear safety research CSNI Proceedings …
    Published date: 13 October 2011
    NEA Document
    CSNI Technical Opinion Papers No.13: LOCA Criteria Basis and Test Methodology
    NEA/CSNI/R(2011)7

    The NEA Committe on the Safety of Nuclear Installations (CSNI), noting that different approaches to determining cladding embrittlement criteria produced nearly identical limits, asked the Working Gro...

    English Nuclear safety research CSNI WGFS
    Published date: 1 January 2011
    NEA Document
    Improving Robustness Assessment Methodologies for Structures Impacted by Missiles (IRIS_2010): Final Report
    NEA/CSNI/R(2011)8

    In December 2008, the Committee on the Safety of Nuclear Installations (CSNI) approved a proposal of the Working Group on Integrity and Ageing of Components and Structures (WGIAGE) to conduct a round...

    English WGIAGE Nuclear safety research CSNI Benchmark …
    Published date: 19 January 2012
    NEA Document
    ISP-49 on Hydrogen Combustion
    NEA/CSNI/R(2011)9

    The main goal of the ISP-49 on Hydrogen Combustion is to identify the contemporary level of the numerical tools in the area of hydrogen combustion simulation under the conditions typical for safety c...

    English WGAMA Nuclear safety research CSNI
    Published date: 18 January 2012
    NEA Document
    Studsvik Cladding Integrity Project (SCIP): Executive Summary
    NEA/CSNI/R(2011)10

    The Studsvik Cladding Integrity Project (SCIP) was initiated in 2004 as an OECD/NEA project with Studsvik Nuclear as the operating agent. Since its start, 27 signatories from 13 countries joined the ...

    English Nuclear safety research CSNI
    Published date: 19 January 2012
    NEA Document
    OECD/NEA Behaviour of Iodine Project: Final Summary Report
    NEA/CSNI/R(2011)11

    A status report by the NEA’s Committee on the Safety of Nuclear Installations (CSNI) on iodine behaviour published in February 2007 concluded that although the understanding of iodine behaviour in co...

    English Nuclear safety research CSNI
    Published date: 11 January 2012
    NEA Document
    International Common Cause Failure Data Exchange (ICDE): General Coding Guidelines Updated Version
    NEA/CSNI/R(2011)12

    In this document, the general coding guidelines for the OECD NEA ICDE Project (International Common Cause Failure Data Exchange) are presented with explanations and appendices for each analysed compo...

    English Accident analysis and management Safety of electrical systems Nuclear safety research Ancillary data CSNI Joint project Safety Safety of components and structures Safety research Risk assessment …
    Published date: 21 February 2012
    NEA Document
    CSNI Technical Opinion Papers No. 14: Nuclear Licensee Organisational Structures, Resources and Competencies: Determining their Suitability
    NEA/CSNI/R(2011)13

    The primary role of the OECD Nuclear Energy Agency (NEA) Working Group on Human and Organisational Factors (WGHOF) is to improve the current understanding and treatment of human and organisational fa...

    English WGHOF Nuclear safety research CSNI
    Published date: 1 January 2012
    NEA Document
    BEMUSE Phase VI Report: Status Report on the Area, Classification of the Methods, Conclusions and Recommendations
    NEA/CSNI/R(2011)4

    The Best-estimate Methods – Uncertainty and Sensitivity Evaluation (BEMUSE) programme, promoted by the Working Group on Analysis and Management of Accidents (WGAMA) and endorsed by the Committee on t...

    English WGAMA Nuclear safety research Uncertainty analysis CSNI …
    Published date: 28 March 2011
    NEA Document
    Status of Site-Level (Including Multi-Unit) Probabilistic Safety Assessment Developments
    NEA/CSNI/R(2019)16

    Two important lessons learnt from the March 2011 Fukushima Daiichi nuclear power plant (NPP) accident were: 1) there can be significant interactions between multiple co-located radiological sources (...

    English Fukushima WGRISK Nuclear safety Nuclear safety research CSNI Probabilistic risk assessment …
    Published date: 19 April 2021
    NEA Document
    International Workshop on Fire Probabilistic Risk Assessment (PRA)
    NEA/CSNI/R(2015)12

    On 28-30 April 2014, the CSNI Working Group on Risk Assessment (WGRISK) held a workshop on Fire Probabilistic Risk Assessment (PRA) in Garching, Germany. The meeting was attended by nearly 60 partici...

    English WGRISK Nuclear safety research CSNI Proceedings Probabilistic risk assessment …
    Published date: 1 November 2015
    NEA Document
    Probabilistic Safety Assessment (PSA) of Natural External Hazards Including Earthquakes
    NEA/CSNI/R(2014)9

    The Fukushima Dai-ichi accident triggered discussions about the significance of external hazards and their treatment in safety analyses. In addition, stress tests results have shown vulnerabilities a...

    English WGRISK WGIAGE Nuclear safety research CSNI Proceedings Probabilistic risk assessment …
    Published date: 2 July 2014
    News
    Key NEA committees meet to discuss developments in nuclear safety research and regulation

    The NEA Committee on Nuclear Regulatory Activities (CNRA) and the Committee on the Safety of Nuclear Installations (CSNI) held their biannual meetings from 6 to 9 December 2021 and discussed the evol...

    News brief CNRA Nuclear safety Regulation Nuclear safety research CSNI Nuclear safety regulation …
    Published date: 14 December 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
    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
    News
    Post-Fukushima safety research

    Nearly 100 experts from the NEA Analysis of Information from Reactor Buildings and Containment Vessels of Fukushima Daiichi Nuclear Power Station (ARC-F) Project and the Preparatory Study on Fuel Deb...

    News brief Decommissioning Fukushima Nuclear safety research Joint project Safety research …
    Published date: 3 August 2021
    News
    Latest updates on NEA work in nuclear safety and regulation

    CNRA/CSNI meetings, May-June 2021.

    News brief CNRA Nuclear safety Regulation Nuclear safety research CSNI Nuclear safety regulation …
    Published date: 10 June 2021
    News
    Thermodynamic characterisation of severe accident analyses

    Preparatory meeting for Thermodynamic Characterisation of Fuel Debris and Fission Products Based on Scenario Analysis of Severe Accident Progression at Fukushima Daiichi Nuclear Power Station (TCOFF)...

    News brief Nuclear science Fukushima Thermodynamic data TCOFF Nuclear safety research Joint project …
    Published date: 27 May 2021
    News
    New Joint Project: Studsvik Material Integrity Life Extension (SMILE)

    New Joint Project: Studsvik Material Integrity Life Extension (SMILE)

    News brief Nuclear safety research Safety of components and structures Safety research
    Published date: 26 January 2021
    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
    News
    Nuclear safety research and regulation

    CNRA/CSNI meetings, December 2020

    News brief CNRA Nuclear safety Regulation Nuclear safety research CSNI Nuclear safety regulation …
    Published date: 7 December 2020
    News
    Computational fluid dynamics for nuclear reactor safety

    The NEA Working Group on Analysis and Management of Accidents (WGAMA) held the eighth Computational Fluid Dynamics (CFD) for Nuclear Reactor Safety Applications (CFD4NRS-8) workshop virtually on 25-2...

    News brief WGAMA Nuclear safety Accident analysis and management Nuclear safety research CSNI …
    Published date: 30 November 2020
    News
    Open phase conditions in electrical power systems of nuclear power plants

    The NEA Working Group on Electrical Power Systems (WGELEC) and the IAEA organised a joint workshop on the “Current Implementation Status of Measures to Manage Open Phase Conditions in Electrical Powe...

    News brief Electrical systems WGELEC Safety of electrical systems Nuclear safety research Safety research …
    Published date: 4 November 2020
    NEA Document
    Evaluation of Uncertainties in Relation to Severe Accidents and Level-2 Probabilistic Safety Analysis: Workshop Proceedings
    NEA/CSNI/R(2007)2

    Uncertainty in relation to several severe accident phenomena plays a major role in probabilistic safety analyses involving beyond-design-basis accident scenarios for nuclear power plants. The technic...

    English Risk assessment WGRISK Accident analysis and management Uncertainty quantification Nuclear safety research Uncertainty analysis CSNI …
    Published date: 26 January 2022
    NEA Document
    Nuclear Fuel Behaviour during Reactivity Initiated Accidents (RIA): Workshop Proceedings
    NEA/CSNI/R(2010)7

    The NEA Working Group on Fuel Safety (WGFS) is tasked with advancing the current understanding of fuel safety issues by assessing the technical basis for current safety criteria and their applicabili...

    English Nuclear safety research CSNI Proceedings WGFS …
    Published date: 15 December 2010
    NEA Document
    Benchmarking Calculations on Halden IFA-650 LOCA Test Results
    NEA/CSNI/R(2010)6

    The NEA Working Group on Fuel Safety (WGFS) is tasked with advancing understanding of fuel safety issues by assessing the technical basis for current safety criteria and their applicability to high b...

    English Nuclear safety research CSNI Benchmark WGFS …
    Published date: 15 November 2010
    NEA Document
    Safety Significance of the Halden IFA-650 LOCA Test Results
    NEA/CSNI/R(2010)5

    Since the time of the first loss-of-coolant accident (LOCA) experiments, which were largely conducted with fresh fuel, changes in fuel design, the introduction of new cladding materials and in partic...

    English Nuclear safety research CSNI WGFS
    Published date: 15 November 2010
    NEA Document
    Ageing Management of Fuel Cycle Facilities: Workshop Proceedings
    NEA/CSNI/R(2010)4

    The objective of the NEA’s Working Group on Fuel Cycle Safety (WGFCS) is to advance the understanding for both regulators and operators of relevant aspects of nuclear fuel cycle safety in member coun...

    English WGFCS Nuclear safety research CSNI Safety Proceedings …
    Published date: 24 November 2010
    NEA Document
    OECD/NEA THAI Project: Hydrogen and Fission Product Issues Relevant for Containment Safety Assessment under Severe Accident Conditions – Final Report
    NEA/CSNI/R(2010)3

    In June 2005, the Committee on the Safety of Nuclear Installations (CSNI) agreed to set up an expert meeting on the German proposal concerning the THAI Project. The objectives of the project were to ...

    English Nuclear safety research CSNI Joint project
    Published date: 22 June 2010
    NEA Document
    Extension of CFD Codes Application to Two-Phase Flow Safety Problems: Phase 2
    NEA/CSNI/R(2010)2

    This document is an extension of the NEA/SEN/SIN/AMA(2006)2 report produced by Writing Group 3 on the extension of computational fluid dynamics (CFD) to two-phase flow safety problems. Writing Group ...

    English CFD Nuclear safety research CSNI
    Published date: 21 July 2010
    NEA Document
    Nuclear Fuel Behaviour under Reactivity-initiated Accident (RIA) Conditions: State-of-the-art Report 2010
    NEA/CSNI/R(2010)1

    In 1986, a working group of the NEA Committee on the Safety of Nuclear Installations issued a state-of-the-art report on water reactor fuel behaviour in design-basis accident (DBA) conditions. The re...

    Fuel in nuclear safety English Nuclear safety research CSNI WGFS …
    Published date: 23 April 2010
    Publications and Reports
    The Strategic Plan of the Nuclear Energy Agency 2017-2022

    This Strategic Plan is intended to guide the NEA as it seeks to meet the evolving needs of member countries in the application and exploration of nuclear science and technology. The plan includes an ...

    English Nuclear law Human aspects of nuclear safety Nuclear law Radiological protection Decommissioning Nuclear science Nuclear economics Nuclear technology Decommissioning and legacy management Nuclear decommissioning Stakeholder Radioactive waste management Nuclear safety research Safety Safety culture Safety research Decontamination Data Bank Nuclear safety regulation Nuclear economics …
    Published date: 22 December 2016
    NEA Document
    Failure Modes Taxonomy for Reliability Assessment of Digital Instrumentation and Control Systems for Probabilistic Risk Analysis
    NEA/CSNI/R(2014)16

    The objective of the Digital System Reliability Failure Mode Taxonomy (DIGREL) task group, formed under the OECD/NEA Working Group on Risk Assessment (WGRISK), has been to develop a taxonomy of failu...

    English WGRISK Nuclear safety research CSNI Probabilistic risk assessment Digital instrumentation and control in nuclear safety …
    Published date: 16 February 2015
    NEA Document
    Probabilistic Safety Assessment Insights Relating to the Loss of Electrical Sources
    NEA/CSNI/R(2017)5

    The main objective of the Working Group on Risk Assessment (WGRISK) is to advance Probabilistic Safety Assessment (PSA) understanding and to enhance its use for improving the safety of nuclear instal...

    English WGRISK Nuclear safety research CSNI
    Published date: 1 September 2017
    NEA Document
    Status of Practice for Level 3 Probabilistic Safety Assessments
    NEA/CSNI/R(2018)1

    The mission of the Nuclear Energy Agency (NEA) Committee on the Safety of Nuclear Installations (CSNI) Working Group on Risk Assessment (WGRISK) is to advance understanding of probabilistic safety as...

    English WGRISK Nuclear safety research CSNI
    Published date: 19 December 2018
    NEA Document
    Use and Development of Probabilistic Safety Assessments at Nuclear Facilities
    NEA/CSNI/R(2019)10

    This report provides descriptions of the current status of PSA programmes in member countries; including basic background information, guidelines, various PSA applications, major results in recent st...

    Fukushima WGRISK Nuclear safety Nuclear safety research CSNI Probabilistic risk assessment …
    Published date: 3 November 2020
    NEA Document
    Workshop on Experimental Validation and Application of CFD and CMFD Codes to Nuclear Reactor Safety Issues, CFD4NRS-7
    NEA/CSNI/R(2020)5

    The Workshop on Experimental Validation and Application of CFD and CMFD Codes to Nuclear Reactor Safety Issues, CFD4NRS-7 was the seventh in a series of workshops focusing on Computational Fluid Dyna...

    English CFD WGAMA Nuclear safety Accident analysis and management CSNI …
    Published date: 19 January 2022
    NEA Document
    Proceedings of the CNRA/CSNI International Workshop on Taking Account of Feedback on Sump Clogging
    NEA/CSNI/R(2009)14

    The workshop on Taking Account of Feedback on Sump Clogging was held at the OECD Conference Centre in Paris, France on 4-5 December 2008. It was organised under the auspices of the Committee on Nucle...

    English Nuclear safety research CSNI Proceedings
    Published date: 8 January 2010
    NEA Document
    BEMUSE Phase V Report: Uncertainty and Sensitivity Analysis of a LB-LOCA in ZION Nuclear Power Plant
    NEA/CSNI/R(2009)13

    The Best-estimate Methods – Uncertainty and Sensitivity Evaluation (BEMUSE) programme, promoted by the Working Group on Accident Management and Analysis (WGAMA) and endorsed by the Committee on the S...

    English WGAMA Nuclear safety research Uncertainty analysis CSNI …
    Published date: 21 December 2009
    NEA Document
    Experiments and CFD Code Application to Nuclear Reactor Safety (XCFD4NRS): Workshop Proceedings
    NEA/CSNI/R(2009)12

    Computational fluid dynamics (CFD) is to an increasing extent being adopted in nuclear reactor safety analyses as a tool that enables specific safety relevant phenomena occurring in the reactor coola...

    English WGAMA Accident analysis and management Nuclear safety research CSNI Proceedings …
    Published date: 6 January 2010
    NEA Document
    Proceedings of the Workshop on Justifying the Suitability of Nuclear Licensee Organisational Structure, Resources and Competencies – Methods, Approaches & Good Practices
    NEA/CSNI/R(2009)11

    There is a growing interest from some nuclear regulatory bodies, as well as licensees, in methods and approaches that can be used to ensure that the licensee organisations are well structured and hav...

    English WGHOF Nuclear safety research CSNI Proceedings …
    Published date: 3 December 2009
    NEA Document
    Defence in Depth of Electrical Systems and Grid Interaction: Final DIDELSYS Task Group Report
    NEA/CSNI/R(2009)10

    The NEA Committee on the Safety of Nuclear Installations (CSNI) authorised formation of a task group in January 2008 to examine Defence in Depth of Electrical Systems and Grid Interaction with nuclea...

    English Nuclear safety research CSNI
    Published date: 9 November 2009
    NEA Document
    Ageing Management of Thick-Walled Concrete Structures, Including ISI, Maintenance and Repair, Instrumentation Methods and Safety Assessment in View of LTO: Workshop Proceedings
    NEA/CSNI/R(2009)9

    The Committee on the Safety of Nuclear Installations (CSNI) Working Group on Integrity and Ageing of Components and Structures (WGIAGE) considered there was a need to review the state-of-the-art tech...

    English WGIAGE Nuclear safety research CSNI Safety of components and structures Proceedings …
    Published date: 14 December 2009
    NEA Document
    Experimental Facilities for Gas-cooled Reactor Safety Studies
    NEA/CSNI/R(2009)8

    The Committee on the Safety of Nuclear Installations (CSNI) established the Task Group on Advanced Reactor Experimental Facilities (TAREF) in 2008 with the objective of providing an overview of facil...

    English Nuclear safety research CSNI
    Published date: 1 January 2009
    NEA Document
    CSNI Technical Opinion Paper No. 12: Research on Human Factors in New Nuclear Plant Technology
    NEA/CSNI/R(2009)7

    This technical opinion paper represents the consensus of the Committe on the Safety of Nuclear Installations (CSNI) Working Group on Human and Organisational Factors (WGHOF) on the state of research ...

    English WGHOF Nuclear safety research CSNI
    Published date: 1 January 2009
    NEA Document
    FIRE Project Report: “Collection and Analysis of Fire Events (2002-2008) – First Applications and Expected Further Developments”
    NEA/CSNI/R(2009)6

    In 2000, the Committee on the Safety of Nuclear Installations (CSNI) approved the establishment of a Fire Incident Records Exchange Project on collection of data on fire events at nuclear power plant...

    English WGRISK Nuclear safety research CSNI
    Published date: 24 September 2009
    NEA Document
    State-of-the-Art Report (SOAR) on Nuclear Aerosols
    NEA/CSNI/R(2009)5

    The Committee on the Safety of Nuclear Installations (CSNI) mandated the preparation of a SOAR with four main objectives:

    • to assess the status of existing experimental data and analytical capabiliti...
    English State-of-the-art report Nuclear safety research CSNI
    Published date: 17 December 2009
    NEA Document
    Ability of Current Advanced Codes to Predict Core Degradation, Melt Progression and Reflooding: Benchmark Exercise on an Alternative TMI-2 Accident Scenario
    NEA/CSNI/R(2009)3

    This Phase II exercise was the first benchmarking of severe accident codes promoted by NEA in almost 20 years. The objective of the exercise was to perform a code benchmark on a well-defined plant (s...

    English WGAMA Accident analysis and management Fuel cycle facility safety Nuclear safety research Safety assessment CSNI Safety Safety of components and structures Risk assessment Benchmark Probabilistic risk assessment …
    Published date: 3 August 2009
    NEA Document
    Risk-Informed Piping Integrity Management: Workshop Proceedings
    NEA/CSNI/R(2009)2

    This report documents the proceedings of a Committe on the Safety of Nuclear Installations (CSNI) workshop on risk-informed piping integrity management. Hosted by the Consejo de Seguridad Nuclear (CS...

    English WGIAGE Nuclear safety research CSNI Proceedings …
    Published date: 23 September 2009
    NEA Document
    Recent Findings and Developments in Probabilistic Seismic Hazards Analysis (PSHA) Methodologies and Applications: Workshop Proceedings
    NEA/CSNI/R(2009)1

    Following the recommendations of a previous meeting held in Jeju, Korea on 6-8 November 2006, the Committee on the Safety of Nuclear Installations (CSNI) approved a proposal of the Working Group on I...

    English WGIAGE Nuclear safety research CSNI Proceedings Probabilistic risk assessment …
    Published date: 13 August 2009
    NEA Document
    International Standard Problem No. 50: ATLAS Test, SB-DVI-09 (Volume III)
    NEA/CSNI/R(2012)6/VOL3

    This report describes final prediction results by system analysis codes during the OECD/NEA ISP-50 exercise, targeting a 50% direct vessel injection (DVI) line break integral effect test performe...

    English Nuclear safety research CSNI
    Published date: 27 February 2012
    NEA Document
    A Decade of CSNI Activities in the Area of Ageing of Nuclear Power Plant Concrete Structures
    NEA/CSNI/R(2008)14

    The Committee on the Safety of Nuclear Installations (CSNI) Working Group on Integrity and Ageing of Components and Structures (WGIAGE) has as a general mandate to advance the current understanding o...

    English WGIAGE Nuclear safety research CSNI Safety of components and structures …
    Published date: 17 December 2008
    NEA Document
    Computer-Based Systems Important to Safety (COMPSIS) Project: 3 Years of Operation (2005-2007)
    NEA/CSNI/R(2008)13

    During the mid 1990s a task group was formed within the Organisation for Economic Co-operation and Development/Nuclear Energy Agency (OECD/NEA) to exchange information on events involving computer-ba...

    English Nuclear safety research Databases CSNI
    Published date: 5 January 2009
    NEA Document
    Technical Opinion Paper No. 11: Better Nuclear Plant Maintenance: Improving Human and Organisational Performance
    NEA/CSNI/R(2008)12

    The Committee on the Safety of Nuclear Installations (CSNI) Working Group on Human and Organisational Factors (WGHOF) is tasked to improve the current understanding of human and organisational perfor...

    English WGHOF Human and organisational factors Nuclear safety research CSNI …
    Published date: 1 January 2009
    NEA Document
    Technical Opinion Paper No. 10: The Role of Human and Organisational Factors in Nuclear Plant Modifications
    NEA/CSNI/R(2008)11

    The NEA Working Group on Human and Organisational Factors (WGHOF) is tasked to improve the current understanding of human and organisational performance and the way in which this impacts upon nuclear...

    English WGHOF Nuclear safety research CSNI
    Published date: 1 January 2009
    NEA Document
    Proceedings of the CSNI/IAEA Workshop on Maintaining Oversight of Licensee Safety Culture – Methods and Approaches
    NEA/CSNI/R(2008)10

    Regulatory bodies are taking a growing interest in the issue of safety culture, and several are actively working to develop and implement approaches to maintaining oversight of licensee safety cultur...

    English WGHOF Nuclear safety research CSNI Safety culture Proceedings …
    Published date: 1 August 2008
    NEA Document
    FAT3D – An OECD/NEA Benchmark on Thermal Fatigue in Fluid Mixing Areas
    NEA/CSNI/R(2005)2

    At the Committee on the Safety of Nuclear Installations (CSNI) meeting of June 2002, a proposal for a benchmark on thermal fatigue in fluid mixing areas based on the test performed by the Commissaria...

    English WGIAGE Nuclear safety research CSNI Benchmark …
    Published date: 1 August 2005
    NEA Document
    Lessons Drawn from Recent (2003-2004) Nuclear Power Plant Operating Experience: Technical Note
    NEA/CSNI/R(2005)4

    This document is the third in a series of the NEA’s Committee on the Safety of Nuclear Installations (CSNI) Working Group on Operating Experience (WGOE) technical notes on nuclear power plant (NPP) r...

    English WGOE Nuclear safety research CSNI
    Published date: 25 January 2005
    NEA Document
    Progress Made in the Last Fifteen Years Through Analyses of the TMI-2 Accident Performed in Member Countries
    NEA/CSNI/R(2005)1

    The TMI-2 accident keeps providing unique full scale data giving opportunities to check the ability of the codes to model overall plant behaviour and to perform many sensitivity and uncertainty calcu...

    English Three Mile Island WGAMA Accident analysis and management Fuel cycle facility safety Nuclear safety research Safety assessment CSNI Safety Safety of components and structures Risk assessment Probabilistic risk assessment …
    Published date: 10 March 2005
    NEA Document
    Review of International Developments and Co-operation on Risk-Informed In-Service Inspection (RI-ISI) and Non-destructive Testing (NDT) Qualification in OECD-NEA Member Countries – Responses to the Questionnaire
    NEA/CSNI/R(2005)3

    In December 2000, the Committee on Nuclear Regulatory Activities (CNRA) and the Committee on the Safety of Nuclear Installations (CSNI) agreed to prepare a state-of-the art report addressing the pres...

    English WGIAGE Nuclear safety research CSNI
    Published date: 28 July 2005
    NEA Document
    International Standard Problem No. 48: Containment Capacity – Synthesis Report
    NEA/CSNI/R(2005)5/VOL1

    At the Committee on the Safety of Nuclear Installations (CSNI) meeting in June 2002, the proposal for an International Standard Problem on containment integrity (ISP 48) based on the NRC/NUPEC/Sandia...

    English WGIAGE Nuclear safety research CSNI Codes and standards in nuclear safety …
    Published date: 6 September 2005
    NEA Document
    International Standard Problem No. 48: Containment Capacity – Appendices C to G
    NEA/CSNI/R(2005)5/VOL2

    At the Committee on the Safety of Nuclear Installations (CSNI) meeting in June 2002, the proposal for an International Standard Problem on containment integrity (ISP 48) based on the NRC/NUPEC/Sandia...

    English WGIAGE Nuclear safety research CSNI Codes and standards in nuclear safety …
    Published date: 6 September 2005
    NEA Document
    International Standard Problem No. 48: Containment Capacity – Appendices H to L
    NEA/CSNI/R(2005)5/VOL3

    At the Committee on the Safety of Nuclear Installations (CSNI) meeting in June 2002, the proposal for an International Standard Problem on containment integrity (ISP 48) based on the NRC/NUPEC/Sandia...

    English WGIAGE Nuclear safety research CSNI
    Published date: 6 September 2005
    NEA Document
    International Standard Problem No. 48: Analysis of a 1:4-Scale Prestressed Concrete Containment Vessel Model Under Severe Accident Conditions
    NEA/CSNI/R(2005)7

    At the Committee on the Safety of Nuclear Installations (CSNI) meeting of June 2002, a proposal for an International Standard Problem on containment integrity (ISP 48) based on the NRC/NUPEC/Sandia t...

    English WGIAGE Nuclear safety research CSNI Proceedings …
    Published date: 11 October 2005
    NEA Document
    Thermal Cycling in LWR Components in OECD-NEA Member Countries
    NEA/CSNI/R(2005)8

    In 2002, the Committee on the Safety of Nuclear Installations (CSNI) requested the Working Group on the Integrity and Ageing of Reactor Components and Structures (WGIAGE) to prepare a programme of wo...

    English WGIAGE Nuclear safety research CSNI
    Published date: 27 July 2005
    NEA Document
    Status Report on Developments and Co-operation on Risk-Informed In-Service Inspection (RI-ISI) and Non-destructive Testing (NDT) Qualification in OECD-NEA Member Countries
    NEA/CSNI/R(2005)9

    In December 2000, the Committee on Nuclear Regulatory Activities (CNRA) and the Committee on the Safety of Nuclear Installations (CSNI) agreed to prepare a state-of-the art report addressing the pres...

    English WGIAGE Nuclear safety research CSNI
    Published date: 28 July 2005
    NEA Document
    Safety of Modifications at Nuclear Power Plants: The Role of Minor Modifications and Human and Organisational Factors
    NEA/CSNI/R(2005)10

    The OECD/NEA Committee on Safety of Nuclear Installations (CSNI) addressed the issue of modifications at a workshop on “Modifications at Nuclear Power Plants – Operating Experience, Safety Significan...

    English WGHOF Human and organisational factors Nuclear safety research CSNI …
    Published date: 1 December 2005
    NEA Document
    State-of-the-Art Report on Systematic Approaches to Safety Management
    NEA/CSNI/R(2006)1

    The Committee on Safety of Nuclear Installations (CSNI) Special Experts’ Group on Human and Organisational Factors (SEGHOF) was requested by the Committee on Nuclear Regulatory Actions (CNRA) to exam...

    English WGHOF State-of-the-art report Nuclear safety research CSNI …
    Published date: 16 March 2006
    NEA Document
    BEMUSE Phase II Report: Re-Analysis of the ISP-13 Exercise, Post Test Analysis of the LOFT L2-5 Test Calculation
    NEA/CSNI/R(2006)2

    The Best-estimate Methods – Uncertainty and Sensitivity Evaluation (BEMUSE) Programme, promoted by the Working Group on Accident Management and Analysis (WGAMA) and endorsed by the Committee on the S...

    English WGAMA Nuclear safety research CSNI
    Published date: 19 June 2006
    NEA Document
    Review of High Burn-up RIA and LOCA Database and Criteria
    NEA/CSNI/R(2006)5

    This document is intended to provide regulators, their technical support organisations and industry with a concise review of existing fuel experimental data at reactivity-initiated accident (RIA) and...

    Fuel in nuclear safety English Nuclear safety research CSNI
    Published date: 28 November 2006
    NEA Document
    Draft Pilot Report: Approaches to the Resolution of Safety Issues
    NEA/CSNI/R(2006)6

    The purpose of this report is to present in a concise form how some safety matters associated with currently operating light water reactors have been addressed. The issues discussed in this report ar...

    English Nuclear safety research CSNI
    Published date: 2 November 2006
    NEA Document
    Proceedings of the Workshop on Better Nuclear Plant Maintenance: Improving Human and Organisational Performance
    NEA/CSNI/R(2006)7

    Due to the importance of human and organisational performance on nuclear plant maintenance, the Committee on the Safety of Nuclear Installations (CSNI) Special Experts’ Group on Human and Organisatio...

    English WGHOF Human and organisational factors Nuclear safety research CSNI Proceedings …
    Published date: 5 April 2007
    NEA Document
    Survey on Primary Water Stress Corrosion Cracking (PWSCC) and Nickel-Based Alloy: Final Version
    NEA/CSNI/R(2006)8

    The Committee on the Safety of Nuclear Installations (CSNI), at its meeting in June 2003, agreed to conduct a survey to collect information that help to identify common needs and area of potential co...

    English WGIAGE Nuclear safety research CSNI
    Published date: 24 May 2007
    NEA Document
    State of the Art Report on Iodine Chemistry
    NEA/CSNI/R(2007)1

    The OECD Nuclear Energy Agency has long recognised the importance of iodine behaviour and has organised workshops and international standard problems on the subject. In the meantime, experimental and...

    English WGAMA State-of-the-art report Nuclear safety research CSNI …
    Published date: 23 February 2007
    NEA Document
    Workshop on Benchmarking of CFD Codes for Application to Nuclear Reactor Safety (CFD4NRS)
    NEA/CSNI/R(2007)3

    Computational fluid dynamics (CFD) is to an increasing extent being adopted in nuclear reactor safety analyses as a tool that enables specific safety relevant phenomena occurring in the reactor coola...

    English CFD WGAMA Nuclear safety research CSNI Proceedings …
    Published date: 1 January 2007
    NEA Document
    BEMUSE Phase III Report: Uncertainty and Sensitivity Analysis of the LOFT L2-5 Test
    NEA/CSNI/R(2007)4

    The Best-estimate Methods – Uncertainty and Sensitivity Evaluation (BEMUSE) programme promoted by the Working Group on Accident Management and Analysis (WGAMA) and endorsed by the Committee on the Sa...

    English WGAMA Nuclear safety research Uncertainty analysis CSNI …
    Published date: 11 October 2007
    NEA Document
    Best Practice Guidelines for the Use of CFD in Nuclear Reactor Safety Applications
    NEA/CSNI/R(2007)5

    In May 2002, an “Exploratory Meeting of Experts to Define an Action Plan on the Application of Computational Fluid Dynamics (CFD) Codes to Nuclear Reactor Safety Problems” was held in Aix-en-Provence...

    English CFD WGAMA Nuclear safety research CSNI Best practices …
    Published date: 15 May 2007
    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
    NEA Document
    CSNI Operating Plan (2006-2009)
    NEA/CSNI/R(2007)7/REV1

    The Operating Plan describes the Committee on the Safety of Nuclear Installations (CSNI) responsibility and organisation, overall scope of work and working methods, and is supplemented by the so-call...

    English Nuclear safety research CSNI
    Published date: 11 April 2008
    NEA Document
    Proceedings of the Workshop on Future Control Station Designs and Human Performance Issues in Nuclear Power Plants
    NEA/CSNI/R(2007)8

    The Committee on the Safety of Nuclear Installations (CSNI) Working Group on Human and Oganisational Factors (WGHOF) and the Halden Reactor Project (HRP) hosted a joint workshop titled “Future Contro...

    English WGHOF Human and organisational factors Nuclear safety research CSNI Proceedings …
    Published date: 15 October 2007
    NEA Document
    Safety Margins Action Plan (SMAP): Final Report
    NEA/CSNI/R(2007)9

    In 1998, the Committee on Nuclear Regulatory Activities (CNRA) issued a report on Future Nuclear Regulatory Challenges. This report discussed the potential erosion of safety margins as an area for fu...

    English Nuclear safety research CSNI
    Published date: 1 January 2007
    NEA Document
    International Standard Problem: ISP-47 on Containment Thermal Hydraulics – Final Report
    NEA/CSNI/R(2007)10

    The main objective of ISP-47 was to assess the capabilities of lumped parameter (LP) and computational fluid dynamics (CFD) codes in the area of containment thermal-hydraulics. Following the recommen...

    English CFD Nuclear safety research CSNI
    Published date: 11 September 2007
    NEA Document
    OECD Research Programme on Fuel-Coolant Interaction: Steam Explosion Resolution for Nuclear Applications (SERENA) – Final Report
    NEA/CSNI/R(2007)11

    The Steam Explosion Resolution for Nuclear Applications (SERENA) programme stems from concerns expressed by the Senior Group of Experts on Nuclear Safety Research Facilities and Programmes (SESAR/FAP...

    English Nuclear safety research CSNI
    Published date: 17 September 2007
    NEA Document
    Assessment of Computational Fluid Dynamics (CFD) Codes for Nuclear Reactor Safety Problems
    NEA/CSNI/R(2007)13

    Following recommendations made at an “Exploratory Meeting of Experts to Define an Action Plan on the Application of Computational Fluid Dynamics (CFD) Codes to Nuclear Reactor Safety (NRS) Problems”,...

    English CFD WGAMA Nuclear safety research CSNI …
    Published date: 28 January 2008
    NEA Document
    Differences in Approach Between Nuclear and Conventional Seismic Standards with Regard to Hazard Definition
    NEA/CSNI/R(2007)17

    At the Committee on the Safety of Nuclear Installations (CSNI) meeting in June 2003, a proposal of the CSNI Working Group on the Integrity and Ageing (WGIAGE) to examine the differences in approach b...

    English WGIAGE Nuclear safety research CSNI
    Published date: 1 February 2008
    NEA Document
    Proceedings of the CSNI Workshop on Structural Reliability Evaluation and Mechanical Probabilistic Approaches of NPP Components
    NEA/CSNI/R(2007)18

    The Committee on the Safety of Nuclear Installations (CSNI) Workshop on Structural Reliability Evaluation and Mechanical Probabilistic Approaches of NPP Components was held in Lyon, France on 25-27 S...

    English WGIAGE Nuclear safety research CSNI Benchmark Proceedings Probabilistic risk assessment …
    Published date: 20 December 2021
    NEA Document
    ICDE Project Report: Collection and Analysis of Common-Cause Failures of Switching Devices and Circuit Breakers
    NEA/CSNI/R(2008)1

    Common-cause-failure (CCF) events can significantly impact the availability of safety systems of nuclear power plants. For this reason, the International Common Cause Failure Data Exchange (ICDE) pro...

    English Accident analysis and management Safety of electrical systems Nuclear safety research Ancillary data CSNI Joint project Safety Safety of components and structures Safety research Risk assessment …
    Published date: 25 January 2008
    NEA Document
    OECD-IAEA Paks Fuel Project Final Report
    NEA/CSNI/R(2008)2

    The OECD-IAEA Paks Fuel Project was established in 2005 as a joint project between the International Atomic Energy Agency (IAEA) and the OECD Nuclear Energy Agency (NEA). The IAEA provided financial ...

    English Accident analysis and management Nuclear safety research CSNI Joint project …
    Published date: 18 September 2008
    NEA Document
    The Role of Research in a Regulatory Context (RRRC-2): Workshop Proceedings
    NEA/CSNI/R(2008)3

    At their meeting of December 2006, the NEA Committee on Nuclear Regulatory Activities (CNRA) and the NEA Committee on the Safety of Nuclear Installations (CSNI) agreed to hold a workshop on the Role ...

    English Regulation Nuclear safety research CSNI Proceedings …
    Published date: 1 January 2008
    NEA Document
    CSNI Collective Statement on the Support Facilities for Existing and Advanced Reactors: The Function of OECD/NEA Joint Projects
    NEA/CSNI/R(2008)5

    In 2007, the NEA Committee on the Safety of Nuclear Installations (CSNI) issued a report titled Nuclear Safety Research in OECD Countries: Support Facilities for Existing and Advanced Reactors (SFEAR...

    English French Bilingual Nuclear safety research CSNI Joint project …
    Published date: 20 December 2021
    NEA Document
    BEMUSE Phase IV Report: Simulation of a LB-LOCA in Zion Nuclear Power Plant – Main Report
    NEA/CSNI/R(2008)6/VOL1

    The Best-estimate Methods – Uncertainty and Sensitivity Evaluation (BEMUSE) programme, promoted by the Working Group on Accident Management and Analysis (WGAMA) and endorsed by the Committee on the S...

    English Modelling and simulation WGAMA Nuclear safety research CSNI …
    Published date: 26 November 2008
    NEA Document
    BEMUSE Phase IV Report: Simulation of a LB-LOCA in Zion Nuclear Power Plant – Appendices A to D
    NEA/CSNI/R(2008)6/VOL2

    The Best-estimate Methods – Uncertainty and Sensitivity Evaluation (BEMUSE) programme, promoted by the Working Group on Accident Management and Analysis (WGAMA) and endorsed by the Committee on the S...

    English Modelling and simulation WGAMA Nuclear safety research CSNI …
    Published date: 26 November 2008
    NEA Document
    BEMUSE Phase IV Report: Simulation of a LB-LOCA in Zion Nuclear Power Plant – Appendices E to G
    NEA/CSNI/R(2008)6/VOL3

    The Best-estimate Methods – Uncertainty and Sensitivity Evaluation (BEMUSE) programme, promoted by the Working Group on Accident Management and Analysis (WGAMA) and endorsed by the Committee on the S...

    English Modelling and simulation WGAMA Nuclear safety research CSNI …
    Published date: 26 November 2008
    NEA Document
    Summary Report on OECD/NEA Seismic Workshops
    NEA/CSNI/R(2008)7

    The Committee on the Safety of Nuclear Installations (CSNI) Working Group on Integrity and Ageing of Components and Structures (WGIAGE) has as a general mandate to advance the current understanding o...

    English WGIAGE Nuclear safety research CSNI Safety of components and structures …
    Published date: 17 July 2008
    Event
    NEA Kappa Workshop: Earthquake Ground Motions on Rock Sites
    25 - 28 May 2021
    Videoconference, Zoom

    In the aftermath of the Fukushima accident, the nuclear community has been re-evaluating seismic hazard at nuclear facilities worldwide. One of the major challenges in this effort is quantifying and ...

    WGIAGE Nuclear safety External hazards Nuclear safety research CSNI Safety research …
    Published date: 1 December 2021
    Joint project
    Halden Human Technology Organisation (HTO) Project

    The Halden Reactor Project has been in operation since 1958 and is the oldest NEA joint project. It brings together an important international technical network in the area of nuclear safety ranging ...

    Risk assessment Accident analysis and management Fuel cycle facility safety Nuclear safety research CSNI Safety Safety of components and structures Safety research …
    Published date: 10 November 2021
    News
    New Joint Project: Experiments on Source Term for Delayed Releases (ESTER)

    Virtual kick-off meeting for the new joint project Experiments on Source Term for Delayed Releases (ESTER), 28-30 September 2020.

    News brief Nuclear safety research Joint project Safety research
    Published date: 9 October 2020
    Activity
    Working Group on Risk Assessment (WGRISK)

    The Working Group supports improved uses of Probabilistic Safety Assessment (PSA) in risk-informed regulation and safety management through the analysis of results and the development of perspectives...

    Risk assessment WGRISK Nuclear safety research CSNI Safety …
    Published date: 14 October 2021
    NEA Document
    Conclusions Drawn from Recent (2002-2003) Events in Nuclear Power Plants: Technical Note
    NEA/CSNI/R(2004)3

    This document is the second in a series of CSNI Working Group on Operating Experience (WGOE) technical notes on recent events in nuclear power plants (NPPs). The purpose is to transmit WGOE views to ...

    English WGOE Nuclear safety research CSNI
    Published date: 16 January 2004
    NEA Document
    ICDE General Coding Guidelines: Technical Note
    NEA/CSNI/R(2004)4

    Several member countries of the Nuclear Energy Agency of the Organisation for Economic Co-operation and Development (OECD/NEA) established the International Common-Cause Failure Data Exchange Project...

    English Accident analysis and management Safety of electrical systems Nuclear safety research Ancillary data CSNI Joint project Safety Safety of components and structures Safety research Risk assessment …
    Published date: 30 January 2004
    NEA Document
    CSNI International Standard Problem Procedures: CSNI Report No. 17 – Revision 4
    NEA/CSNI/R(2004)5

    This revised document was reviewed and endorsed in September 2003 by the Committee on the Safety of Nuclear Installations (CSNI) Working Group on the Analysis and Management of Accidents (WGAMA), whi...

    English WGAMA Nuclear safety research CSNI
    Published date: 9 March 2004
    NEA Document
    Current Severe Accident Research Facilities and Projects: Revised October 2003
    NEA/CSNI/R(2004)6

    The “Current Severe Accident Research Facilities and Projects” list was compiled by the Committee on the Safety of Nuclear Installations Working (CSNI) Group on the Analysis and Management of Acciden...

    English WGAMA Nuclear safety research CSNI
    Published date: 9 March 2004
    NEA Document
    Identification of Relevant Conditions and Experiments for Fuel-Coolant Interactions in Nuclear Power Plants: SERENA Co-ordinated Programme (Steam Explosion Resolution for Nuclear Application)
    NEA/CSNI/R(2004)7

    The overall objective of the international OECD programme SERENA is to obtain convergence on the understanding of fuel-coolant interaction (FCI) processes and energetics, as well as on method(s) for ...

    Fuel in nuclear safety English Nuclear safety research CSNI
    Published date: 12 March 2004
    NEA Document
    Proceedings of the CSNI/RILEM Workshop on Use and Performance of Concrete in NPP Fuel Cycle Facilities
    NEA/CSNI/R(2004)8

    The OECD-NEA/RILEM workshop on the “Use and Performance of Concrete in Nuclear Power Plant Fuel Cycle Facilities”, conducted based on a proposal of the Committee on the Safety of Nuclear Installation...

    English WGIAGE Nuclear safety research CSNI Proceedings …
    Published date: 8 July 2004
    NEA Document
    International Developments and Co-operation on Risk-Informed In-Service Inspection (RI-ISI) and Non-destructive Testing (NDT) Qualification
    NEA/CSNI/R(2004)9

    The Committee on the Safety of Nuclear Installations (CSNI) workshop on “International Development and Co-operation on Risk-Informed In-Service (RI-ISI) and Non-destructive Testing (NDT) Qualificatio...

    English WGIAGE Nuclear safety research CSNI Proceedings …
    Published date: 14 February 2005
    NEA Document
    Experimental Facilities for Earthquake Engineering Simulation Worldwide: Are Large Testing Facilities for Nuclear Power Plants Design and Verification at Risk?
    NEA/CSNI/R(2004)10

    In the report “Nuclear Safety Research in OECD Countries: Summary Report of Major Facilities and Programmes at Risk“ published by the NEA/CSNI Senior Group of Experts on Nuclear Safety Research Facil...

    English WGIAGE Nuclear safety research CSNI Safety of components and structures …
    Published date: 7 July 2004
    NEA Document
    International Standard Problem No. 48: Containment Capacity – Phase 2 Report: Results of Pressure Loading Analysis
    NEA/CSNI/R(2004)11

    At the Committe on the Safety of Nuclear Installations (CSNI) meeting of June 2002, a proposal for an International Standard Problem on containment integrity (ISP 48) based on the NRC/NUPEC/Sandia te...

    English WGIAGE Nuclear safety research CSNI
    Published date: 20 July 2004
    NEA Document
    Research Efforts Related to Wire System Ageing in NEA Member Countries
    NEA/CSNI/R(2004)12

    The December 2000 meeting of the NEA Committee on the Safety of Nuclear Installations (CSNI) accepted a proposal to set up a task group to prepare a report describing research efforts related to wire...

    English WGIAGE Safety of electrical systems Nuclear safety research CSNI …
    Published date: 11 August 2004
    NEA Document
    AECL International Standard Problem ISP-41: Follow-up Exercise (Phase II): Iodine Code Comparison Exercise Against CAIMAN and RTF Experiments
    NEA/CSNI/R(2004)16

    The main objective of ISP exercises is to increase confidence in the validity and accuracy of the tools that are used in assessing the safety of nuclear installations. The secondary objective is to e...

    English Nuclear safety research CSNI Codes and programs
    Published date: 1 November 2004
    NEA Document
    Proceedings of the CSNI WGOE/SEGHOF Workshop on Modifications at Nuclear Power Plants – Operating Experience, Safety Significance and the Role of Human Factors and Organisation
    NEA/CSNI/R(2004)17

    The Nuclear Energy Agency Committe on the Safety of Nuclear Installations (CSNI) addressed the issue of modifications at the workshop “Modifications at Nuclear Power Plants – Operating Experience, Sa...

    English WGOE Human and organisational factors Nuclear safety research CSNI Proceedings …
    Published date: 1 October 2004
    NEA Document
    International Standard Problem ISP-46: Thematic Network for a PHEBUS FPT-1 International Standard Problem (THENPEBISP)
    NEA/CSNI/R(2004)18
    English Nuclear safety research CSNI
    Published date: 1 July 2003
    NEA Document
    SEGFSM Topical Meeting on LOCA Fuel Issues
    NEA/CSNI/R(2004)19

    The Special Expert Group on Fuel Safety Margins (SEGFSM) was established by the Committee on the Safety of Nuclear Installations (CSNI) with the objective to advance the current understanding and to ...

    Fuel in nuclear safety English Nuclear safety research CSNI Proceedings …
    Published date: 7 January 2005
    Activity
    Senior Expert Group on Safety Research / Support Facilities for Existing and Advanced Reactors 2 (SESAR/SFEAR2)

    The Senior Expert Group on Safety Research / Support Facilities for Existing and Advanced Reactors 2 (SESAR/SFEAR2) is responsible for reviewing and updating the previous SESAR assessments of researc...

    Fuel cycle facility safety Nuclear safety research CSNI Safety Safety of components and structures Safety research …
    Published date: 22 April 2020
    Activity
    Pressurised Water Reactor Main Steam-Line Break (MSLB) Benchmark

    This benchmark incorporated full 3-D modelling of the reactor core into system transient codes for best-estimate simulations of the interactions between reactor core behaviour and plant dynamics and ...

    Modelling and simulation Thermal hydraulics Verification and validation Nuclear safety research Uncertainty analysis Safety of components and structures Benchmark Thermal hydraulics and mechanics …
    Published date: 26 July 2021
    NEA Document
    Status Report on Spent Fuel Pools under Loss-of-Coolant Accident Conditions Final Report
    NEA/CSNI/R(2015)2

    Spent fuel pools (SFPs) are large accident-hardened structures that are used to temporarily store irradiated nuclear fuel. Due to the robustness of the structures, SFP severe accidents have long been...

    English Nuclear safety research CSNI
    Published date: 23 January 2015
    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
    NEA Document
    TMI-2 Examination Results from the OECD-CSNI Programme: Volume 1
    NEA/CSNI/R(1992)9/VOL1
    English Accident analysis and management Fuel cycle facility safety Nuclear safety research Safety assessment CSNI Joint project Safety Safety of components and structures Risk Risk assessment Probabilistic risk assessment …
    Published date: 1 January 1991
    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
    NEA Document
    Status of the Bubbler Condenser Containment System for the Reactors of the VVER-440/213 Type
    NEA/CSNI/R(1998)13
    English Risk assessment Fuel cycle facility safety Nuclear safety research CSNI Safety of components and structures Pressurised water reactors Risk Safety research …
    Published date: 1 January 1998
    Publications and Reports
    2019 NEA Annual Report

    The NEA Annual Report 2019 provides an overview of the status of nuclear power in NEA member countries and illustrative descriptions of the Agency's activities and international joint projects. 2019 ...

    English Nuclear law Human aspects of nuclear safety Radiological protection Nuclear science Nuclear economics Nuclear technology Decommissioning and legacy management Radioactive waste management Nuclear safety research Nuclear safety regulation …
    Published date: 12 June 2020
    Joint project
    Experimental Thermal Hydraulics for Analysis, Research and Innovations in NUclear Safety (ETHARINUS) Project

    The Experimental Thermal Hydraulics for Analysis, Research and Innovations in Nuclear Safety (ETHARINUS) project serves the objectives of investigating phenomena where the knowledge base for safety a...

    Finland WGAMA Accident analysis and management Thermal hydraulics Russia Nuclear safety research Germany Accident management …
    Published date: 11 June 2021
    Joint project
    Primary Coolant Loop Test Facility (PKL) Project

    The Primärkreislauf-Versuchsanlage (Primary Coolant Loop Test Facility [PKL]) is a facility owned and operated by Framatome GmbH (formerly AREVA NP) in Erlangen, Germany, to perform experiments on th...

    Finland WGAMA Accident analysis and management Thermal hydraulics Hungary Nuclear safety research Germany Accident management …
    Published date: 11 June 2021
    Event
    Multi-sector workshop on innovative regulation: Challenges and benefits of harmonising the licensing process for emerging technologies
    14 - 18 December 2020
    Zoom webinar

    The OECD Nuclear Energy Agency (NEA) in collaboration with the Canadian Nuclear Safety Commission (CNSC) hosted an international, multi-sector workshop on 14-18 December 2020 on safely regulating inn...

    Nuclear innovation Nuclear safety research Innovation Nuclear safety regulation
    Published date: 25 May 2021
    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
    Experiments on Source Term for Delayed Releases (ESTER) Project

    Following several years of experimental research in the field of source terms analysis in the BIP, STEM and THAI joint projects but also other activities, the NEA Working Group on the Analysis and Ma...

    Fission products WGAMA Accident analysis and management Chemistry Release of radioactive materials Nuclear safety research Joint project Accident management Emergency preparedness and response …
    Published date: 11 May 2021
    Activity
    Working Group on Integrity and Ageing of Components and Structures (WGIAGE)

    The main mission of the Working Group on Integrity and Ageing of Components and Structures (WGIAGE) is to advance the current understanding of the relevant aspects related with ensuring the integrity...

    Structural materials WGIAGE Nuclear safety research Safety Safety of components and structures …
    Published date: 3 May 2021
    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: 30 April 2021
    News
    External hazards and the safety of nuclear installations

    NEA Working Group on External Events (WGEV) meeting, 1-5 March 2021.

    News brief External hazards WGEV External hazards and nuclear safety Nuclear safety research …
    Published date: 24 March 2021
    NEA Document
    Safety of Long-term Interim Storage Facilities: Workshop Proceedings
    NEA/CSNI/R(2013)10

    The NEA’s Working Group on Fuel Cycle Safety (WGFCS), in co-operation with the Working Group on Fuel Safety (WGFS), aimed within the current international workshop to advance the understanding within...

    English WGFCS Spent fuel Nuclear safety research CSNI Safety Proceedings WGFS …
    Published date: 23 January 2014
    NEA Document
    Seismic Observation in Deep Boreholes and Its Applications
    NEA/CSNI/R(2013)11/PART1

    The Second Workshop on Seismic Observation in Deep Boreholes and Its Applications (Kashiwazaki WS) was held from 7-9 November 2012 in the City of Kashiwazaki, Niigata, Japan, and co-organised by the ...

    English WGIAGE Nuclear safety research CSNI Proceedings …
    Published date: 29 January 2013
    NEA Document
    Seismic Observation in Deep Boreholes and Its Applications
    NEA/CSNI/R(2013)11/PART2

    The Second Workshop on Seismic Observation in Deep Boreholes and Its Applications (Kashiwazaki WS) was held from 7-9 November 2012 in the City of Kashiwazaki, Niigata, Japan, and co-organised by the ...

    English WGIAGE Nuclear safety research CSNI Proceedings …
    Published date: 28 January 2013
    NEA Document
    Updated Knowledge Base for Long-term Core Cooling Reliability
    NEA/CSNI/R(2013)12

    The current document is an update of the 1995 state-of-the-art report (SOAR) “Knowledge Base for Emergency Core Cooling System Recirculation Reliability”. The content of the present report goes beyon...

    English WGAMA Nuclear safety research CSNI WGFS …
    Published date: 20 December 2013
    NEA Document
    Updated Knowledge Base for Long-term Core Cooling Reliability
    NEA/CSNI/R(2013)12/add1

    The document contains the appendices of an update of the 1995 state-of-the-art report (SOAR) “Knowledge Base for Emergency Core Cooling System Recirculation Reliability”. The content of the report go...

    English WGAMA Nuclear safety research CSNI WGFS …
    Published date: 19 December 2013
    NEA Document
    Simulator Studies for HRA Purposes
    NEA/CSNI/R(2012)1

    In 2008, the NEA's Working Group on Risk Assessment (WGRISK) issued a report [NEA/CSNI/R(2008)9] addressing the feasibility of a joint international effort on human reliability analysis (HRA) data. T...

    English WGHOF WGRISK Nuclear safety research CSNI Proceedings Probabilistic risk assessment …
    Published date: 2 May 2012
    NEA Document
    Nuclear Fuel Safety Criteria Technical Review: Second Edition
    NEA/CSNI/R(2012)3

    A set of fuel-related safety criteria was presented – along with both the rationale for having such criteria and possible new design and operational issues which could have an effect on them – in the...

    Fuel in nuclear safety English Nuclear safety research CSNI WGFS …
    Published date: 1 January 2012
    NEA Document
    Safety Assessment of Fuel Cycle Facilities – Regulatory Approaches and Industry Perspectives
    NEA/CSNI/R(2012)4

    The objective of the Working Group on Fuel Cycle Safety (WGFCS) is to advance the understanding for both regulators and operators of relevant aspects of nuclear fuel cycle safety in member countries....

    Fuel in nuclear safety English WGFCS Fuel cycle facility safety Nuclear safety research CSNI Safety Proceedings …
    Published date: 3 July 2013
    NEA Document
    OECD/SETH-2 Project PANDA and MISTRA Experiments Final Summary Report: Investigation of Key Issues for the Simulation of Thermal-hydraulic Conditions in Water Reactor Containment
    NEA/CSNI/R(2012)5

    The OECD/SETH-2 project was carried out during the period 2007-2010 under the auspices of the Nuclear Energy Agency (NEA) and with support provided by the Czech Republic, Finland, France, Germany, Ja...

    English CFD Nuclear safety research CSNI
    Published date: 6 April 2012
    NEA Document
    International Standard Problem No. 50: ATLAS Test, SB-DVI-09 (Volume I)
    NEA/CSNI/R(2012)6/VOL1

    This report describes final prediction results by system analysis codes during the OECD/NEA ISP-50 exercise, targeting a 50% direct vessel injection (DVI) line break integral effect test performed wi...

    English Nuclear safety research CSNI
    Published date: 23 February 2012
    NEA Document
    International Standard Problem No. 50: ATLAS Test, SB-DVI-09 (Volume II)
    NEA/CSNI/R(2012)6/VOL2

    This report describes final prediction results by system analysis codes during the OECD/NEA ISP-50 exercise, targeting a 50% direct vessel injection (DVI) line break integral effect test performed wi...

    English Nuclear safety research CSNI
    Published date: 27 February 2012
    NEA Document
    CSNI Technical Opinion Paper No. 15: Ageing Management of Nuclear Fuel Cycle Facilities
    NEA/CSNI/R(2012)7

    The objective of the OECD Nuclear Energy Agency (NEA) Working Group on Fuel Cycle Safety (WGFCS) is to advance the understanding for both regulators and operators of relevant aspects of fuel cycle sa...

    English WGFCS Fuel cycle facility safety Nuclear safety research CSNI …
    Published date: 1 January 2012
    NEA Document
    A Joint Report on PSA for New and Advanced Reactors
    NEA/CSNI/R(2012)17

    Probabilistic safety assessment/probabilistic risk assessment (PSA/PRA) for new and advanced reactors is recognized as an important approach to achieve improved safety for the future nuclear power pl...

    English WGRISK Nuclear safety research CSNI Probabilistic risk assessment …
    Published date: 19 February 2013
    NEA Document
    Use and Development of Probabilistic Safety Assessment: An Overview of the Situation at the End of 2010
    NEA/CSNI/R(2012)11

    The main objective of the Working Group on Risk Assessment (WGRISK) of the Nuclear Energy Agency (NEA)/Committee on the Safety of Nuclear Installations (CSNI) is to advance the probabilistic safety a...

    English WGRISK Nuclear safety research CSNI Probabilistic risk assessment …
    Published date: 3 January 2013
    NEA Document
    Computer-based Systems Important to Safety (COMPSIS) Project: Second Period Operation (2008-2011)
    NEA/CSNI/R(2012)12

    In 2005 the OECD/NEA Steering Committee agreed to establish the international Computer-based Systems Important to Safety (COMPSIS) project to encourage multilateral co-operation in the collection and...

    English Fuel cycle facility safety Nuclear safety research CSNI
    Published date: 19 July 2012
    NEA Document
    Oversight and Influencing of Licensee Leadership and Management for Safety, Including Safety Culture – Regulatory Approaches and Methods
    NEA/CSNI/R(2012)13

    Both regulators and the nuclear industry recognise the need for licensees to develop a strong, positive safety culture to support successful and sustainable nuclear safety performance. In recognition...

    English WGHOF Nuclear safety research CSNI Safety culture Proceedings …
    Published date: 27 June 2012
    NEA Document
    OECD/NEA PRISME Project Application Report
    NEA/CSNI/R(2012)14

    A number of OECD member countries expressed their interest in participating in an OECD/NEA joint international research project on the topic of fire propagation. The PRISME project (PRISME is the Fre...

    English Nuclear safety research CSNI
    Published date: 6 July 2012
    NEA Document
    PSA Knowledge Transfer
    NEA/CSNI/R(2012)15

    The maintenance of sufficient expertise, data, analytical and experimental capabilities to be able to develop the technical basis to resolve currently identified safety issues and respond to and inve...

    English WGRISK Nuclear safety research CSNI Probabilistic risk assessment …
    Published date: 12 December 2012
    NEA Document
    OECD-NEA Piping Failure Data Exchange Project (OECD-NEA OPDE) Final Report
    NEA/CSNI/R(2012)16

    Several OECD member countries agreed to establish the OECD/NEA Piping Failure Data Exchange Project (OECD/NEA OPDE) to encourage multilateral co-operation in the collection and analysis of data relat...

    English Nuclear safety research Databases CSNI Safety of components and structures …
    Published date: 26 November 2012
    Joint project
    Preparatory Study on Analysis of Fuel Debris (PreADES) Project

    The Preparatory Study on Analysis of Fuel Debris (PreADES) project was proposed as a near-term project by the Senior Expert Group on Safety Research Opportunities Post-Fukushima (SAREF).

    PreADES was ...

    Fuel in nuclear safety Risk assessment Fukushima Accident analysis and management Fuel cycle facility safety Nuclear safety research CSNI Safety Safety research …
    Published date: 9 February 2021
    NEA Document
    Safety Research Opportunities Post-Fukushima
    NEA/CSNI/R(2016)19

    Initial Report of the Senior Expert Group

    One of the imperatives following the accident at the Fukushima Daiichi nuclear power station is for the nuclear science and industry communities to ensure th...

    English Fukushima Nuclear safety research CSNI
    Published date: 28 February 2016
    Activity
    Working Group on Electrical Power Systems (WGELEC)

    The main mission of the Working Group on the Safety of Electrical Systems (WGELEC) is to advance the current understanding and address safety issues related to electrical systems of nuclear installat...

    WGELEC Safety of electrical systems Nuclear safety research CSNI Safety …
    Published date: 16 February 2021
    Activity
    Senior Expert Group on Safety Research Opportunities Post-Fukushima (SAREF)

    The Senior Expert Group on Safety Research Opportunities Post-Fukushima (SAREF) was established at the June 2013 CSNI meeting to identify research activities to address safety research knowledge gaps...

    Fukushima Fuel cycle facility safety Nuclear safety research CSNI Safety Safety of components and structures …
    Published date: 4 February 2021
    Activity
    Committee on the Safety of Nuclear Installations (CSNI)

    The Committee on the Safety of Nuclear Installations (CSNI) is responsible for NEA programmes and activities that support maintaining and advancing the scientific and technical knowledge base of the ...

    Fuel in nuclear safety Risk assessment Accident analysis and management Fuel cycle facility safety Safety of electrical systems External hazards and nuclear safety Nuclear safety research CSNI Safety Safety of components and structures …
    Published date: 10 February 2021
    Joint project
    Studsvik Cladding Integrity Project (SCIP)

    On this page

    • SCIP phases
      • First phase (2004-2009)
      • Second phase (2009-2014)
      • Third phase (2014-2019)
      • Fourth phase (2019-2024)
        • Related external link

    SCIP phases

    First phase (2004-2009)

    Phase on...

    Fuel in nuclear safety Risk assessment Accident analysis and management Fuel cycle facility safety Nuclear safety research CSNI Safety Safety of components and structures Safety research …
    Published date: 14 April 2020
    Joint project
    Halden Reactor Project

    The Halden Reactor Project has been in operation since 1958 and is the oldest NEA joint project. It brings together an important international technical network in the area of nuclear safety ranging ...

    Risk assessment Accident analysis and management Fuel cycle facility safety Nuclear safety research CSNI Safety Safety of components and structures Safety research …
    Published date: 6 April 2020
    Publications and Reports
    Pressurised Water Reactor Main Steam Line Break (MSLB) Benchmark - Volume III

    This benchmark is based on a well-defined problem concerning a pressurised water reactor (PWR) main steam line break, which may occur as a consequence of the rupture of one steam line upstream of the...

    English Modelling and simulation Nuclear science Thermal hydraulics Verification and validation Nuclear safety research Uncertainty analysis Safety of components and structures Benchmark Thermal hydraulics and mechanics Pressurised water reactors …
    Published date: 22 November 2002
    Publications and Reports
    Pressurised Water Reactor Main Steam Line Break (MSLB) Benchmark - Volume II

    The benchmark is based on a well-defined problem concerning a PWR main steam line break, which may occur as a consequence of the rupture of one steam line upstream of the main steam isolation valves....

    English Modelling and simulation Nuclear science Thermal hydraulics Verification and validation Nuclear safety research Uncertainty analysis Safety of components and structures Benchmark Thermal hydraulics and mechanics Pressurised water reactors …
    Published date: 22 December 2000
    Publications and Reports
    Pressurised Water Reactor Main Steam Line Break (MSLB) Benchmark - Volume I

    Since the beginning of benchmark activities, two benchmark workshops took place. The first was held in Madrid, Spain (June 1998), and the second in Garching near Munich, Germany (March 1999). It was ...

    English Modelling and simulation Nuclear science Thermal hydraulics Verification and validation Nuclear safety research Uncertainty analysis Safety of components and structures Benchmark Thermal hydraulics and mechanics Pressurised water reactors …
    Published date: 1 January 1999
    Publications and Reports
    Pressurised Water Reactor Main Steam Line Break (MSLB) Benchmark - Volume IV

    This benchmark is based on a well-defined problem concerning a pressurised water reactor (PWR) main steam line break, which may occur as a consequence of the rupture of one steam line upstream of the...

    English Modelling and simulation Nuclear science Thermal hydraulics Verification and validation Nuclear safety research Uncertainty analysis Safety of components and structures Benchmark Thermal hydraulics and mechanics Pressurised water reactors …
    Published date: 19 November 2003
    Subtopic
    External hazards and nuclear safety

    Demonstrating the safety of a nuclear facility requires that the consequences of all possible threats be considered, including external hazards such as severe weather, floods and earthquakes.

    External hazards and nuclear safety Nuclear safety research Safety Safety research
    Published date: 18 March 2020
    Subtopic
    Accident analysis and management

    Accident analysis and management focusses on understanding the causes and consequences of an accident at a nuclear facility, and on how to manage an accident through prevention and mitigation.

    Accident analysis and management Nuclear safety research Safety Safety research
    Published date: 17 March 2020
    News
    COG and NEA sign MOU to advance global PHWR safety research

    CANDU Owners Group (COG) and the NEA have signed a Memorandum of Understanding to co-operate in research and activities related to pressurised heavy water reactor (PHWR) technology. 

    Press release Nuclear safety Nuclear safety research CANDU reactors International co-operation Pressurised heavy water reactors Canada Safety research …
    Published date: 30 September 2020
    Activity
    Disruptive technologies

    Disruptive technologies for nuclear safety applications

    Nuclear economics Disruptive technologies Nuclear technology Nuclear innovation Nuclear safety research Innovation Nuclear safety regulation …
    Published date: 13 August 2020
    Topic
    Nuclear safety research

    Nuclear safety can be understood as accident prevention in nuclear installations, via its systems and its human resources, and the mitigation of risks and consequences if an accident should occur.

    Nuclear safety research
    Published date: 29 January 2020
    Subtopic
    Safety of electrical systems

    Nuclear facilities rely on a robust electrical system to power primary and back-up systems required to safely respond to a wide variety of challenging events.

    Safety of electrical systems Nuclear safety research Safety Safety research
    Published date: 17 March 2020
    Subtopic
    Safety of components and structures

    Reactor components and structures degrade by exposure to heat, environmental conditions and radiation. It is vital to understand ageing processes to ensure that safety criteria continue to be met.

    Nuclear safety research Safety Safety of components and structures Safety research
    Published date: 18 March 2020
    Subtopic
    Risk assessment

    Risk assessments are used to determine the probability of harmful events at a nuclear plant. They are valuable for determining the relative benefit and better selection of safety enhancements.

    Risk assessment Nuclear safety research Safety Safety research
    Published date: 17 March 2020
    Subtopic
    Fuel in nuclear safety

    The fuel for a nuclear reactor is both the source of the fission energy that is used to produce electricity and the source of radioactive material during an accident.

    Fuel in nuclear safety Nuclear safety research Safety Safety research
    Published date: 18 March 2020
    Subtopic
    Fuel cycle facility safety

    The facilities associated with nuclear fuel from mining to fabrication to post-irradiation management have some specific safety concerns that are different from those of nuclear reactors.

    Fuel cycle facility safety Nuclear safety research Safety Safety research
    Published date: 18 March 2020
    News
    External hazards and the safety of nuclear installations: Working Group on External Events (WGEV) meeting

    NEA Working Group on External Events (WGEV) meeting, 14-18 September 2020.

    News brief External hazards WGEV External hazards and nuclear safety Nuclear safety research …
    Published date: 9 October 2020
    Joint project
    International Common-cause Failure Data Exchange (ICDE) Project

    Common-cause failure (CCF) events can significantly affect the availability of nuclear power plant safety systems. In recognition of this, CCF data is systematically collected and analysed in several...

    Accident analysis and management Fuel cycle facility safety Safety of electrical systems Nuclear safety research Ancillary data CSNI Safety Safety of components and structures Safety research Risk assessment …
    Published date: 7 April 2020
    Joint project
    Fire Incidents Records Exchange (FIRE) Project

    The main purpose of the project is to encourage multilateral co-operation in the collection and analysis of data relating to fire events. The objectives of the NEA Fire Project are to:

    • collect fire ...
    Accident analysis and management Fuel cycle facility safety External hazards and nuclear safety Nuclear safety research Databases CSNI Joint project Safety Safety of components and structures Safety research Risk assessment …
    Published date: 3 April 2020
    NEA Document
    Robustness of Electrical Systems of NPPs in Light of the Fukushima Daiichi Accident
    NEA/CSNI/R(2015)4

    ROBELSYS Workshop Proceedings

    The Defence in Depth of Electrical Systems (DIDELSYS) Project (2008-2011) was launched after a switchyard-induced voltage surge event at Forsmark Nuclear Power Plant (NP...

    English Nuclear safety research CSNI Proceedings
    Published date: 26 January 2015
    NEA Document
    Robustness of Electrical Systems of NPPs in Light of the Fukushima Daiichi Accident: Appendix 2 (Cont’d) and Appendix 3
    NEA/CSNI/R(2015)4/ADD

    ROBELSYS Workshop Proceedings
    Appendix 2 (Cont’d) and Appendix 3

    English Nuclear safety research CSNI Proceedings
    Published date: 26 January 2015
    NEA Document
    Human Factors Validation of Nuclear Power Plant Control Room Designs and Modifications: APPENDIX C
    NEA/CSNI/R(2016)17/ADD2

    Proceedings of the Expert Workshop Charlotte, United States 19-21 February 2015

    Appendix C:
    Speaker Presentations: Abstracts/Texts and Graphics

    English Nuclear safety research CSNI Proceedings
    Published date: 14 June 2017
    NEA Document
    Human Factors Validation of Nuclear Power Plant Control Room Designs and Modifications APPENDIX B White Papers
    NEA/CSNI/R(2016)17/ADD1

    Proceedings of the Expert Workshop Charlotte, United States 19-21 February 2015

    The word validation has many different meanings depending on the context where it applies. In a general way validation ...

    English Nuclear safety research CSNI Proceedings
    Published date: 14 June 2017
    NEA Document
    Operational and Regulatory Aspects of Criticality Safety
    NEA/CSNI/R(2016)3

    OECD/CSNI Workshop Proceedings 

    Criticality safety is an integral component of ensuring the continued safe operation of current reactor and fuel cycle facilities, as well as addressing new and intere...

    English Nuclear safety research CSNI Proceedings
    Published date: 12 January 2016
    NEA Document
    Computational Fluid Dynamics for Nuclear Reactor Safety Applications-6 (CFD4NRS-6)
    NEA/CSNI/R(2017)20

    Workshop Proceedings 13-15 September 2016 Cambridge USA

    The present report summarises the 6th workshop on Computational Fluid Dynamics for Nuclear Reactor Safety Applications (CFD4NRS-6) in the bienn...

    English WGAMA Nuclear safety research CSNI Proceedings …
    Published date: 3 September 2018
    NEA Document
    Understanding the Impact of External Hazards on Nuclear Facilities: Severe Weather and Storm Surge
    NEA/CSNI/R(2017)13

    Workshop Proceedings -Working Group on External Events (WGEV)
    Paris, France, 24-26 February 2016

    The March 2011 accident at Fukushima Daiichi nuclear power plant triggered discussions about the natur...
    English WGEV Nuclear safety research CSNI Proceedings …
    Published date: 11 July 2017
    NEA Document
    Developments in Fuel Cycle Facilities (FCFs) after the Fukushima Daiichi Nuclear Power Station (NPS) Accident
    NEA/CSNI/R(2017)12

    CSNI Workshop Proceedings
    Aomori City, Japan, 15-17 November 2016

    The main objective of the workshop was to review and discuss national activities, plans and regulatory approaches by member countrie...
    English Fuel cycle facility safety Nuclear safety research CSNI Proceedings …
    Published date: 4 July 2017
    NEA Document
    Developments in Fuel Cycle Facilities (FCFs) after the Fukushima Daiichi Nuclear Power Station (NPS) Accident: Workshop Proceedings Appendix 3
    NEA/CSNI/R(2017)12/ADD1

    Aomori City, Japan
    15-17 November 2016

    On March 11, 2011, the Tohoku–Taiheiyou–Oki earthquake occurred near the east coast of Honshu, Japan. This magnitude 9.0 earthquake and the subsequent tsunami c...

    English Fuel cycle facility safety Nuclear safety research CSNI Proceedings …
    Published date: 8 January 2018
    NEA Document
    Proceedings of the 4th International Conference on Fatigue of Nuclear Reactor Components APPENDIX 4
    NEA/CSNI/R(2017)2/ADD1

    International Conference on Fatigue of Nuclear Reactor Components on 28 September-1 October 2015 in Seville, Spain.

    In this work, a complete algorithm for monitoring fatigue was developed for nuclear...

    English WGIAGE Nuclear safety research CSNI Proceedings …
    Published date: 10 July 2017
    NEA Document
    Proceedings of the Fourth International Conference on Fatigue of Nuclear Reactor Components
    NEA/CSNI/R(2017)2

    This is a summary report from the International Conference on Fatigue of Nuclear Reactor Components on 28 September-1 October 2015 in Seville, Spain. Over 90 specialists from 21 countries attended th...

    English WGIAGE Nuclear safety research CSNI Proceedings …
    Published date: 19 December 2016
    NEA Document
    Pellet-Cladding Interaction (PCI) in Water-Cooled Reactors: Proceedings of a WGFS Workshop
    NEA/CSNI/R(2018)9

    This report documents the proceedings of the Workshop on Pellet-Cladding Interaction (PCI) in Water-Cooled Reactors held in Lucca, Italy on 22-24 June 2016. The workshop was organised jointly by the ...

    English Nuclear safety research CSNI Proceedings WGFS …
    Published date: 11 June 2018
    NEA Document
    Proceedings of International Workshop on