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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
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
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
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
News
Advanced instrumentation for nuclear reactor thermal hydraulics experiments

Advanced instrumentation for nuclear reactor thermal hydraulics experiments

Risk assessment News brief Accident analysis and management Nuclear safety research
Published date: 18 November 2019
NEA Document
ICDE Project Report: Summary Phase VII of the International Common-cause Exchange Project of Nuclear Power Plant Events
NEA/CSNI/R(2019)3

The ICDE project allows multiple countries to collaborate and exchange CCF data to enhance the quality of risk analyses, which include CCF modelling. Because CCF events are typically rare, most count...

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 January 2019
NEA Document
Lessons Learnt from Common-Cause Failure of Emergency Diesel Generators in Nuclear Power Plants: A Report from the International Common-Cause Failure Data Exchange (ICDE) Project
NEA/CSNI/R(2018)5

This report documents a study performed on a set of common-cause failure (CCF) events of Emergency Diesel Generators (EDG) at nuclear power plants. In May 2000, the ICDE Project published a report su...

English Accident analysis and management Safety of electrical systems Nuclear safety research Ancillary data CSNI Safety Safety of components and structures Safety research Risk assessment …
Published date: 26 September 2018
Event
International Workshop on Chemical Hazards in Fuel Cycle Facilities Nuclear Processing
17 - 19 April 2018
Boulogne-Billancourt, France

Hosted by the French Institute for Radiological Protection and Nuclear Safety (IRSN) and the Nuclear Energy Agency (NEA)

Objectives

Working under the mandate of the CSNI, the objective of the WGFCS i...

Risk assessment Accident analysis and management WGFCS Fuel cycle facility safety Nuclear safety research CSNI Safety …
Published date: 30 April 2020
NEA Document
Workshop on the Collection and Analysis of Emergency Diesel Generator Common-Cause Failures Impacting Entire Exposed Populations: International Common-Cause Failure Data Exchange (ICDE) Project Report
NEA/CSNI/R(2017)8

This report documents a study performed on a set of common-cause failure (CCF) events for diesel generators. The events were derived from the International CCF Data Exchange (ICDE) database and the s...

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: 24 August 2017
Event
Workshop on Developments in Fuel Cycle Facilities (FCFs) after the Fukushima Daiichi Nuclear Power Station (NPS) Accident
15 - 18 November 2016
Aomori City, Japan

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

Risk assessment Fukushima Accident analysis and management WGFCS Fuel cycle facility safety Nuclear safety research CSNI Safety Safety of components and structures Accident management …
Published date: 4 May 2020
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
ICDE Project Report: Collection and Analysis of Common-cause Failures of Centrifugal Pumps
NEA/CSNI/R(2013)2

The purpose of the International Common Cause Data Exchange (ICDE) Project is to allow multiple countries to collaborate and exchange Common Cause Failure (CCF) data to enhance the quality of risk an...

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: 4 July 2013
NEA Document
ICDE Project Report: Collection and Analysis of Common-cause Failures of Control Rod Drive Assemblies
NEA/CSNI/R(2013)4

The purpose of the ICDE Project is to allow multiple countries to collaborate and exchange common cause failure (CCF) data to enhance the quality of risk analyses that include CCF modelling. Because ...

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: 3 July 2013
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
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
English Accident analysis and management Fuel cycle facility safety Nuclear safety research CSNI Safety of components and structures Codes and programs Risk Safety research Risk assessment Verification and validation Validation Accident management …
Published date: 7 May 2010
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
ICDE Project Report: Collection and Analysis of Common-Cause Failures of Level Measurement Components
NEA/CSNI/R(2008)8

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: 1 July 2008
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
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