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    Event
    International Workshop on Process and Safety Improvements Experienced in Fuel Cycle Facilities since 2010
    3 - 4 October 2022
    OECD, Room BB 2, 46 Quai Alphonse le Gallo, 92100 Boulogne-Billancourt

    The Working Group on Fuel Cycle Safety (WGFCS) of the Nuclear Energy Agency (NEA) Committee on the Safety of Nuclear Installations (CSNI) will hold an international workshop on Process and Safety Imp...

    WGFCS Fuel cycle facility safety Nuclear safety research CSNI
    Published date: 24 June 2022
    Activity
    Working Group on Analysis and Management of Accidents (WGAMA)

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

    Risk assessment WGAMA Accident analysis and management Nuclear safety research CSNI Safety Accident management Risk …
    Published date: 24 June 2022
    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: 22 June 2022
    NEA Document
    ICDE Topical Report: Collection and Analysis of Intersystem Common-Cause Failure Events
    NEA/CSNI/R(2020)1

    This report presents a study performed on a set of common-cause failure (CCF) events within the International Common-Cause Failure Data Exchange (ICDE) project. The topic of the study was intersystem...

    Nuclear safety Nuclear safety research CSNI
    Published date: 21 June 2022
    News
    Joint NEA-IAEA symposium on probabilistic safety assessment for singular design reactors

    The joint NEA-IAEA symposium hosted by the United Kingdom’s Office for Nuclear Regulation brought together experts to exchange on the use and application of Probabilistic Safety Analysis (PSA) for re...

    News brief IAEA WGRISK Safety assessment CSNI Probabilistic risk assessment Reactor design …
    Published date: 14 June 2022
    News
    Experts discuss nuclear safety and regulatory issues

    CSNI and CNRA held their biannual meetings and a joint session at the NEA headquarters.

    News brief Nuclear installations CNRA Nuclear safety Regulation Nuclear safety research CSNI Nuclear safety regulation …
    Published date: 10 June 2022
    Event
    Joint NEA and IAEA International Symposium on PSA for Reactors of Singular Designs
    7 - 9 June 2022
    Liverpool, United Kingdom

    The Symposium is free of charge for all participants and is scheduled to take place in person at the ONR’s offices near Liverpool in the United Kingdom. 

     

    Key Dates

    31 March 2022  Deadline for a...
    SMR IAEA small modular reactors WGRISK Nuclear safety CSNI Safety Reactor design …
    Published date: 6 April 2022
    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
    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
    News
    Probabilistic safety assessment for singular design reactors

    Joint NEA and IAEA event will explore probabilistic safety assessment for reactors of singular designs

    News brief IAEA WGRISK Safety assessment CSNI Probabilistic risk assessment Reactor design …
    Published date: 28 April 2022
    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
    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
    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
    NEA Document
    Summary Report of the NEA ATLAS-2 Joint Project
    NEA/CSNI/R(2021)6

    Within the context of the Nuclear Energy Agency (NEA) Advanced Thermal-hydraulic Test Loop for Accident Simulation (ATLAS) project, a series of tests were performed to resolve key thermal-hydraulic s...

    Nuclear safety Thermal hydraulics CSNI Joint project Safety Safety research …
    Published date: 18 February 2022
    NEA Document
    Requirements for CFD-Grade Experiments for Nuclear Reactor Thermal Hydraulics
    NEA/CSNI/R(2020)3

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

    CFD WGAMA Nuclear safety Safety assessment CSNI Safety Accident management Reactor design …
    Published date: 17 February 2022
    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
    The Use of Quantitative Safety Guidelines in Member Countries
    NEA/CSNI/R(1994)15/REV1
    English WGRISK CSNI
    Published date: 26 January 2022
    NEA Document
    Level 2 PSA Methodology and Severe Accident Management
    NEA/CSNI/R(1997)11
    English WGRISK CSNI
    Published date: 26 January 2022
    NEA Document
    Research Strategies for Human Performance
    NEA/CSNI/R(1997)24
    English WGRISK CSNI
    Published date: 26 January 2022
    NEA Document
    Improving Low Power and Shutdown PSA Methods and Data to Permit Better Risk Comparison and Trade-off Decision Making - Summary Report
    NEA/CSNI/R(2005)11/VOL1
    English WGRISK CSNI
    Published date: 26 January 2022
    NEA Document
    Improving Low Power and Shutdown PSA Methods and Data to Permit Better Risk Comparison and Trade-off Decision Making - Responses to the WGRISK Survey
    NEA/CSNI/R(2005)11/VOL2
    English WGRISK CSNI
    Published date: 26 January 2022
    NEA Document
    Improving Low Power and Shutdown PSA Methods and Data to Permit Better Risk Comparison and Trade-off Decision Making - Responses to the COOPRA Survey
    NEA/CSNI/R(2005)11/VOL3
    English WGRISK CSNI
    Published date: 26 January 2022
    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
    Use and Development of Probabilistic Safety Assessment
    NEA/CSNI/R(2007)12
    English WGRISK CSNI
    Published date: 26 January 2022
    NEA Document
    Specialist Meeting on the Seismic Probabilistic Safety Assessment of Nuclear Facilities: Proceedings
    NEA/CSNI/R(2007)14
    English WGRISK WGIAGE CSNI Proceedings …
    Published date: 26 January 2022
    NEA Document
    Recent Developments in Level 2 PSA and Severe Accident Management
    NEA/CSNI/R(2007)16
    English WGRISK CSNI
    Published date: 26 January 2022
    NEA Document
    HRA Data and Recommended Actions to Support the Collection and Exchange of HRA Data: CSNI WGRisk Report
    NEA/CSNI/R(2008)9
    English WGRISK CSNI
    Published date: 26 January 2022
    NEA Document
    Status of PSA programmes in member countries, 1989
    NEA/CSNI(1989)172
    English WGRISK CSNI
    Published date: 25 January 2022
    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 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
    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
    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
    NEA Document
    Assessment of the Safe Shutdown Earthquake Robustness Against On-site Observations
    NEA/CSNI/R(2019)14

    This activity of the Nuclear Energy Agency (NEA) Committee on the Safety of Nuclear Installations (CSNI) Working Group on Integrity and Ageing of Components and Structures (WGIAGE) is entitled “Asses...

    Nuclear installations Sustainable development WGIAGE Nuclear safety CSNI Safety Safety research …
    Published date: 25 November 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
    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
    Operating Plan and Guidelines for the Nuclear Energy Agency Committee on the Safety of Nuclear Installations 2017-2022
    NEA/CSNI/R(2017)17/REV1
    Nuclear installations Nuclear safety CSNI
    Published date: 10 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
    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
    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
    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
    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
    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
    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
    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
    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
    Improving Evaluations of Source Terms for Severe Accidents at Nuclear Installations: STEM Final Summary Report
    NEA/CSNI/R(2018)6

    Final Report of the Source Term Evaluation and Mitigation Project (STEM)

    Energy Agency (NEA) and operated by the Institut de Radioprotection et de Sûreté Nucléaire (French Institute of radiation prot...

    English CSNI
    Published date: 7 September 2020
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