The Nuclear Energy Agency (NEA) Working Group on the Analysis and Management of Accidents (WGAMA) aims to contribute to the assessment of the prevention, mitigation and management of accidents, ultim...
Published date:
5 October 2023
NEA/CSNI/R(2019)11
In the ASCET Phase III, the goal was to assess and develop the Phase II (blind benchmark) recommendations using additional test results. The Phase III simulations were performed using a full set of t...
Published date:
24 November 2022
The Country-Specific Safety Culture Forum takes place in Canada.
Published date:
6 October 2022
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...
Published date:
14 June 2022
Joint NEA and IAEA event will explore probabilistic safety assessment for reactors of singular designs
Published date:
28 April 2022
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, ...
Published date:
17 February 2022
NEA/RWM/R(2019)6
In July 2016, the Nuclear Energy Agency (NEA) and the International Atomic Energy Agency (IAEA) held a joint workshop to evaluate the current state of the art on operational safety of geological repo...
Published date:
30 November 2021
The NEA Integration Group for the Safety Case (IGSC) has served as the most important and effective international platform for developing and integrating the science and engineering necessary to unde...
Published date:
21 December 2020
NEA/RWM/R(2013)8
This Technical Note makes proposals for revisions to the NEA International FEP List in light of the review of the project-specific FEP lists recently developed (i.e. since 2006) by organisations asse...
Published date:
13 January 2014
NEA/RWM/R(2013)7
This Technical Note reviews the relevant project-specific FEP lists recently developed (i.e. since 2006) by organisations assessing the post-closure safety of the deep disposal of radioactive waste. ...
Published date:
19 December 2013
An important activity of the OECD Nuclear Energy Agency (NEA) in the field of radioactive waste management is the organisation of independent, international peer reviews of national studies and proje...
Published date:
8 October 2012
Safety assessment is an interdisciplinary approach that focuses on the scientific understanding and performance assessment of safety functions as well as the hazards associated with a geological disp...
Published date:
18 September 2012
Sweden is at the forefront among countries developing plans for a deep geological repository of highly radioactive waste. There is no such repository in operation yet worldwide, but Sweden, Finland a...
Published date:
5 July 2012
NEA/RWM/PEER(2011)1
Over the past two decades the NEA, on behalf of requesting countries, has regularly organised international peer reviews of national safety reports in the field of geological disposal of radioactive ...
Published date:
26 April 2011
À toutes les phases du cycle du combustible nucléaire, mais aussi lorsque l’on utilise des substances radioactives dans l’industrie, la recherche et en médecine, on produit des déchets radioactifs. L...
Published date:
24 September 2010
Radioactive waste is associated with all phases of the nuclear fuel cycle as well as the use of radioactive materials in medicine, research and industry. For the most hazardous and long-lived waste, ...
Published date:
24 September 2010
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...
Published date:
3 August 2009
A “safety case” is the synthesis of evidence, analyses and arguments that quantify and substantiate a claim that a geological repository for radioactive waste will be safe after closure and beyond th...
Published date:
5 May 2009
A key challenge in the development of safety cases for the deep geological disposal of radioactive waste is handling the long time frame over which the radioactive waste remains hazardous. The intrin...
Published date:
13 March 2009
The long-term safety of deep disposal of radioactive waste will be strongly dependent on the performance of the geological setting. The geology fulfils important safety functions including isolating ...
Published date:
22 June 2007
The presence of several barriers serving complementary safety functions enhances confidence that radioactive waste placed in deep geological repositories will be adequately isolated and contained to ...
Published date:
12 April 2007
In the deep disposal of radioactive waste, the presence of several barriers serving complementary safety functions enhances confidence that the waste will be isolated and contained to protect human h...
Published date:
16 February 2007
NEA/RWM/IGSC(2006)3
The report is aimed at interested parties that already have some detailed background knowledge of safety assessment methodologies and safety cases, including safety assessment practitioners and regul...
Published date:
4 January 2007
Published date:
17 August 2006
A major activity of the OECD Nuclear Energy Agency (NEA) in the field of radioactive waste management is the organisation of international peer reviews of national studies and projects. The peer revi...
Published date:
17 July 2006
L’une des principales activités de l’Agence de l’OCDE pour l’énergie nucléaire (AEN) dans le domaine de la gestion des déchets radioactifs est d’organiser des examens internationaux d’études et de pr...
Published date:
16 February 2006
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...
Published date:
10 March 2005
The OECD Nuclear Energy Agency (NEA) organised a workshop on the “Management of Uncertainty in Safety Cases and the Role of Risk” in Stockholm, Sweden, on 2-4 February 2004. The workshop’s main objec...
Published date:
25 February 2005
The Integration Group for the Safety Case (IGSC) of the Nuclear Energy Agency (NEA) is co-sponsoring a project with the European Commission to develop a greater understanding of how to achieve the ne...
Published date:
16 November 2004
Le dépôt des déchets radioactifs à vie longue dans des formations géologiques profondes fait l’objet d’études approfondies dans le monde entier dans le but de protéger l’homme et l’environnement, auj...
Published date:
19 July 2004
Disposal of long-lived radioactive waste in engineered facilities deep underground is being widely investigated worldwide in order to protect humans and the environment both now and in the future. Th...
Published date:
19 July 2004
When preparing the safety case for a deep geological repository of radioactive waste, the integration of wide-ranging information from multidisciplinary sources is a complex task. This has provided t...
Published date:
1 June 2004
Studies are under way in Switzerland to investigate various aspects of the geological disposal of radioactive waste. This report presents the results of the international peer review organised by the...
Published date:
23 April 2004
Im schweizerischen Projekt Entsorgungsnachweis untersucht die Nagra die Sicherheit der geologischen Tiefenlagerung von radioaktiven Abfällen im Opalinuston des Zürcher Weinlands. Der vorliegende Beri...
Published date:
22 April 2004
L’AEN a organisé en avril 2002 un atelier sur la “Gestion des échelles de temps dans le cadre de l’évaluation de sûreté en phase post-fermeture” de stockages de déchets radioactifs en formation géolo...
Published date:
1 March 2004
NEA/RWM/IGSC(2004)3
During its fifth meeting, held in Paris, France on 5 October 2003, the NEA's Integration Group for the Safety Case (IGSC) conducted a topical session on Observations Regarding the Safety Case in Rece...
Published date:
13 February 2004
A workshop entitled “The Handling of Timescales in Assessing Post-closure Safety” of deep geological repositories for radioactive waste was organised by the NEA in April 2002. This report presents th...
Published date:
10 February 2004
A joint NEA-EC workshop entitled “Engineered Barrier Systems (EBS) in the Context of the Entire Safety Case” was organised in Oxford on 25-27 September 2002 and hosted by United Kingdom Nirex Limited...
Published date:
3 July 2003
A workshop entitled the “Handling of timescales in assessing post-closure safety” of deep geological repositories for radioactive waste was organised in Paris on 16-18 April 2002 and hosted by the Fr...
Published date:
22 November 2002
NEA/RWM/IGSC(2002)2
This document contains the proceedings of a topical session on The Role of the Biosphere in a Safety Case held during the third Integration Group for the Safety Case (IGSC) meeting in Paris, France o...
Published date:
26 February 2002
GEOTRAP is the OECD/NEA Project on Radionuclide Migration in Geologic, Heterogeneous Media carried out in the context of site evaluation and safety assessment of deep repository systems for long-live...
Published date:
14 February 2002
NEA/RWM/IGSC(2002)1
This document contains the proceedings of a topical session on the Safety Case held at the third Integration Group for the Safety Case (IGSC) meeting in Paris, France on 25 November 2001. The topics ...
Published date:
10 January 2002
Analysis of the long-term safety of radioactive waste repositories, using performance assessment and other tools, is required prior to implementation.The initial stage in developing a repository safe...
Published date:
25 July 2001
In underground repositories for radioactive waste, significant quantities of gases may be generated as a result of several processes. The potential impact of gas generation, accumulation and migratio...
Published date:
20 April 2001
GEOTRAP is the OECD/NEA Project on Radionuclide Migration in Geologic, Heterogeneous Media carried out in the context of site evaluation and safety assessment of deep repository systems for long-live...
Published date:
13 February 2001
Safety assessments of disposal sites for radioactive waste involve analyses of potential releases of radionuclides from the disposed waste and subsequent transport to the human environment. An import...
Published date:
19 January 2000
This report is aimed at safety assessors of deep geological repositories and at technical specialists concerned with radioactive waste disposal. It is intended to improve communication among interest...
Published date:
6 January 2000
This report presents the common views of the International Review Team established by the NEA Secretariat on behalf of the Swedish Nuclear Power Inspectorate (SKI) to perform a peer review of a post-...
Published date:
1 January 2000
Nirex has responsibilities for nuclear waste management in the UK. The company’s top level scientific objectives are to maintain technical credibility in deep disposal, to gain public acceptance for ...
Published date:
1 January 1999
The Probabilistic System Assessment Group (PSAG) was established by the RWMC in January 1985 (originally under a different name) to help co-ordinate the development in OECD member countries of probab...
Published date:
1 January 1997
The assessment of the long-term safety of radioactive waste repositories includes examining natural or human disruptive events and evaluating their impact. This report reviews the main issues raised ...
Published date:
31 December 1996
L'évaluation de la sûreté à long terme des centres de stockage des déchets radioactifs nécessite notamment d’étudier les événements perturbateurs d’origine naturelle ou humaine et d’en évaluer les im...
Published date:
1 January 1995
The Probabilistic System Assessment Group (PSAG) (formerly the Probabilistic System Assessment Code (PSAC) User Group was established in 1985 by the Nuclear Energy Agency (NEA) of the Organisation fo...
Published date:
1 January 1993
The analysis of the long-term safety of radioactive waste disposal systems requires the use of mathematical models and scenarios that simulate repository behavior in response to future events. This r...
Published date:
2 January 1992
This report presents a collective opinion of the Radioactive Waste Management Committee of the OECD Nuclear Energy Agency (OECD/NEA) and of the International Radioactive Waste Management Advisory Com...
Published date:
1 January 1991
The Probabilistic System Assessment Group (PSAG) (formerly the Probabilistic System Assessment Code (PSAC) User Group was established in 1985 by the Nuclear Energy Agency (NEA) of the Organisation fo...
Published date:
1 January 1990
The Probabilistic System Assessment Group (PSAG) (formerly the Probabilistic System Assessment Code (PSAC) User Group was established in 1985 by the Nuclear Energy Agency (NEA) of the Organisation fo...
Published date:
1 January 1987