Following a safety-oriented, stepwise procedure for geological repository siting, the Nuclear Waste Management Organization of Japan (NUMO) requested in 2021 that the NEA facilitate an independent in...

Optimisation has always been a fundamental concept in decision making for all parts of society, but the way decisions are taken has changed in recent years. Societal considerations towards nuclear-re...

NEA’s Working Party on the Technical, Environmental, and Safety Aspects of Decommissioning and Legacy Management gathered for a workshop on  29 November to 1 December 2022 in Paris. 

In the current project, a new systematic approach has been developed, called SAPIUM (systematic approach for input uncertainty quantification methodology) for transparent and rigorous model IUQ. This...

The publication of the latest EGIR report marks the completion of phase one of the group's programme of work.

In order to test the evolved communication and information technologies, the NEA organised the INEX 2000 exercise hosted in France at the Gravelines nuclear power plant, 22-23 May 2001. This internat...

The first INEX exercise was held in 1993 to address the international community need to improve the quality and the co-ordination of emergency response systems on a regional scale, in particular in t...

The INEX-2 exercise was planned as a series of regional, command-post exercises with the simultaneous real-time participation of many countries – including those from Eastern Europe and Asia – and in...

Despite the significant advances made in early phase emergency management as a result of INEX series, longer-term consequence management has remained a difficult challenge for emergency managers. In ...

The INEX-4 exercise was designed to allow participants to investigate the national and, in some cases, international arrangements for responding to widespread radiological contamination of the urban ...

The INEX-5 exercises series were developed in 2013-2014 and were conducted between September 2015 and June 2016. The preliminary analysis of the INEX-5 evaluation questionnaires, as well as details o...

INEX-6 will be the largest exercise in over 20 years.

The Global Forum Secretariat works with the Global Forum to provide support to the Council of Advisors to make products available to the Agency’s bodies and projects as appropriate. The Secretariat a...

Members of the WGHOF gathered in Vantaa, Finland, for its 33rd meeting.

The Joint Evaluated Fission and Fusion File (JEFF)  Nuclear Data Library Project is a collaboration between NEA Data Bank participating countries. The JEFF library combines the efforts of its differ...

This Global Forum Working Group focuses on activities to increase the number of women in the nuclear field.

Presentation of NEST Fellows

The working groups are comprised of experts from primarily academic institutions and other relevant stakeholders from NEA member and non-member countries.   

Co-Chair: Raul Barrachina (left), National Atomic Energy Commission and Kenichi Ishikawa (right), University of Tokyo

Co-Chair: Emanuela Colombo (left), Politecnico di Milano and Edward Obbard (right), The University of New South Wales Sydney (UNSW)

Co-Chair: Ian Farnan (left), University of Cambridge and Man-Sung Yim (right), Korea Advanced Institute of Science and Technology (KAIST)

Sustained performance of nuclear technology depends on access to a talented and well-qualified workforce, thus it is important to ensure that adequate infrastructures exist for education and training...

Le Bulletin de droit nucléaire est une publication internationale unique en son genre destinée aux juristes et aux universitaires en droit nucléaire.

The NEST Secretariat monitors the progress of the different NEST Projects, supports the Management Board in the Monitoring and Evaluation process and provides the interface between the NEST Projects ...

A list of NEST events, conferences, workshops and summer schools organised in the context of ongoing NEST projects.

At the heart of the NEST Framework are multinational and multidisciplinary projects, so-called NEST projects.

The main decision body of the NEST Framework is the Management Board which includes one member and one alternate from each NEST Country.

The NEA launched the Nuclear Education, Skills and Technology (NEST) Framework in partnership with its member countries to help address important gaps in nuclear skills capacity building, knowledge t...

The Global Forum on Nuclear Education, Science, Technology and Policy acts as an inclusive network of experts in the nuclear energy sector, primarily from academia, focused on enabling the generation...

The Nuclear Law Bulletin is a unique international publication for both professionals and academics in the field of nuclear law.

Le Bulletin de droit nucléaire est une publication internationale unique en son genre destinée aux juristes et aux universitaires en droit nucléaire. Ses lecteurs bénéficient d’informations exhaustiv...

The Nuclear Law Bulletin is a unique international publication for both professionals and academics in the field of nuclear law. It provides readers with authoritative and comprehensive information o...

The Integration Group for the Safety Case (IGSC) provides advice to the Radioactive Waste Management Committee (RWMC) on major and emerging issues to facilitate the development of waste management st...

Radioactive waste management is the safe treatment, storage and disposal of liquid, solid and gas discharge from nuclear industry operations with the goal of protecting people and the environment.

The committee supports member countries in the development of safe and economically efficient management of all types of radioactive waste (including spent fuel) based on the latest scientific and te...

Despite progress over the past decades, women remain under-represented in executive positions in science, technology, engineering and mathematics. Female students tend to do very well in math and sci...

In today’s society, the population of men and women is essentially equal in terms of numbers. However, in the domain of science and technology, which is part of the same society, this is not the case...

The NEA mentoring workshops are in line with the initiatives being undertaken by countries around the world to ensure that expertise is maintained in highly technical areas such as nuclear safety, ra...

In capacity building and gender balance, a key goal is to attract and retain more women in the technology and science fields by promoting education and development in those areas.

The opening session of the Sixth International Conference on Geological Repositories (ICGR-6) in Helsinki, Finland. Photo: Krystal Kenney

There is consensus within the international scientific commun...

The NEA participated in the European Nuclear Young Generation Forum in Krakow, Poland, an international platform for collaboration between the nuclear sector and the next generation.

The annual Benchmark Workshops of the Working Party on Scientific Issues and Uncertainty Analysis of Reactor Systems will be hosted by the Italian National Agency for New Technologies, Energy and Sus...

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...

The ICGR brings together high-level decision-makers from regulatory and local government bodies, waste management organisations and public stakeholder communities to review current perspectives of ge...

Decommissioning refers to all the actions taken to remove a licensed or authorised nuclear facility as well as legacy sites from regulatory control after their permanent shutdown.

The NEA nuclear science programme is developed and executed by the Nuclear Science Committee (NSC), comprising high-level scientific experts from all NEA member countries.

This report presents the results of a benchmark study on innovative fuels for fast reactors using fuel performance codes. Irradiation results were shared among participants of the expert group and co...

Monte Carlo criticality calculations involve a two-step procedure based on a stochastic implementation of the power iteration method: first, achieve convergence of the fission source distribution dur...

Since the early 2000s there is an increasing demand from nuclear research, industry, safety and regulation for best-estimate predictions to be provided with their confidence bounds. Consequently, an ...

Recent operating experience in nuclear power plants has shown that there is a safety concern associated with the use of new industrial devices, including digital devices, in safety power systems in b...

^{Spent nuclear fuel repository site, Olkiluoto, Finland. Photo: Kallerna.}

Introduction

The Sixth International Conference on Geological Repositories (ICGR) took place in Helsinki, Finland from 4-8 A...

Information note on nuclear power installations in Ukraine, updated periodically.

The overall objective of the High-level Group on Low Dose Research (HLG-LDR) is to support radiological protection policy, regulation and implementation choices by improving the effectiveness and eff...

All low-carbon solutions will be required to achieve the world's net zero targets. Nuclear energy has a role to play in meeting this need. A wave of innovation in small modular reactors (SMRs) is adv...

Deadline for submission of abstracts       30 June 2023    

Notification of accepted contributions      17 July 2023

Deadline for attendance registration          27 Oct 2023      

Deadline for presentation submissions 27 Oct 2...

The NEA thermal hydraulic code validation benchmark for high temperature gas-cooled reactors using HTTF data (HTGR T/H), supervised by the Expert Group on Reactor Core Thermal-Hydraulics and Mechanic...

The NEA is organising the 16^th Information Exchange Meeting on Actinide and Fission Product Partitioning and Transmutation (16IEMPT) on 24-27 October 2023. The meeting will be held at the NEA offices...

In the early decades of nuclear reactor development, many countries built and operated zero-power facilities in which many different critical arrangements of materials were studied. These flexible ex...

The FIDES-II framework is designed to do more than just produce data on transient fuel behavior and safety related issues. 

NEST Alumni share valuable lessons from their fellowships

The Technical Review Groups for both projects met at the NEA headquarters on 3-7 April 2023.

Members of FIDES-II from 12 countries assembled in Prague, Czech Republic, on 17-21 April 2023 for meetings of its Technical Advisory Group and Governing Board.

The WPRS met from 20-24 February 2023.

Expert groups on structural and fuel materials meet to advance materials science activities

Thermodynamic databases and accident prevention

International experts gathered at the NEA for the commencement of the third phase TAF-ID on 16-17 February 2023.

The Nuclear Law Bulletin is a unique international publication for both professionals and academics in the field of nuclear law. It provides readers with authoritative and comprehensive information o...

Registrations are now closed.

The International workshop on disruptive technologies for nuclear safety applications is one of the most significant digital innovation events of the year. This two-day ...

Principles and Practice of International Nuclear Law examines the various interrelated legal issues for the safe, efficient and secure use of nuclear energy. It provides an overview of the complex bo...

In 2002, the NEA CRPPH established a dedicated expert group (EGIR) to evaluate draft general recommendations developed by the International Commission on Radiological Protection (ICRP) and to provide...

The Expert Group on International Recommendations (EGIR) was re-established by the NEA Committee on Radiological Protection and Public Health (CRPPH) in 2021 to evaluate the International Commission ...

Over the past two decades, the safety case has become a powerful and essential tool to support decision making at every stage of a geological disposal programme. Now, an increasing number of national...

In response to the technical and scientific needs emerged recently in this area, the Working Group of External Events (WGEV) and the Working Group on Risk Assessment (WGRISK) initiated a joint task e...

^{Picture: ANSTO}

This event has now finished. Speaker presentations are available for download using the links in the 'Download' section.

NEA article reporting on this workshop:

Examining new technolog...

The CDLM assists member states in holistically addressing challenges in the execution of decommissioning and legacy management through sharing experiences among members with a broad range of expertis...

The NEA has organised the first International School on Simulation of Nuclear Reactor Systems (SINUS) on the topic of Reactor single- and multi-physics simulations based on Light Water Reactor (LWR) ...

The Thermochemical Database (TDB) Project develops a reference database of chemical thermodynamic values for elements and compounds relevant to the safety of radioactive waste repositories and vital ...

The seventh edition of the annual NEA Thermochemical Database (TDB) Project course on the topic of thermodynamic data collection and assessment will take place as a one-day, in-person event on 23 Sep...

Approximately 30 experts from WGAMA discussed how to advance the understanding of phenomena in pool in the situation of a loss of cooling accident.

NEA Regulators' Forum meet at the NEA in Paris to discuss regulatory issues

An NEA delegation led by Director-General William D. Magwood, IV visited the Netherlands to meet with government and industry representatives.

The Steering Committee for Nuclear Energy convened on 20-21 April in Paris.

Cabri Reactor (Commissariat à l’énergie atomique et aux énergies alternatives)

The Cabri International Project (CIP) began in March 2000 to study the behaviour of nuclear fuel rods and cladding durin...

The Horonobe International Joint Project (HIP) is a collaborative project between the NEA and Japan Atomic Energy Agency established in February 2023.

As part of the NEA Global Forum on Nuclear Education, Science, Technology and Policy, the Rising Stars Programme leverages the weight of the Agency and the academic institutions to build new pipeline...

The NEA has launched a survey to collect information from member countries to be incorporated into a revised version of the NEA’s Country Protective Measures Handbook.

The NEA and the World Association of Nuclear Operators have signed a new Memorandum of Understanding (MoU).

The CRPPH held its annual meeting on 4-6 April 2023 at the NEA premises in Boulogne-Billancourt, France.

The NEA in collaboration with the Japanese Nuclear Regulatory Authority (NRA) will host an international workshop on 28-29 June 2023 on the topic of Ageing management considerations in mechanical cod...

A cabinet containing copper bus before the HEAF test (left) and after the test(right). Source: NRC

Massive electrical discharges, referred to as high energy arcing faults (HEAF), have occurred in nuc...

The Forum on Stakeholder Confidence (FSC) was established by the NEA Radioactive Waste Management Committee (RWMC) in 2000 and serves as a platform for understanding stakeholder dialogue and discussi...

International Fuel Performance Experiments (IFPE) is a data collection of nuclear fuel performance experiments for the purpose of code development and validation.

The NEA will hold the Third Stakeholder Involvement workshop to advance the issue of optimisation in decision making on 5-7 September 2023, in close co-operation with all interested NEA Standing Tech...

Applications for the fifth session of the International Radiological Protection School (IRPS) are now closed.

The 2023 edition of the IRPS is scheduled to take place in person in Stockholm, Sweden fr...

NEA News is the professional journal of the NEA. It features articles on the latest nuclear energy issues concerning the economic and technical aspects of nuclear energy, nuclear safety and regulatio...

Development started on DATIF, the DATabase for IFpe, in 2018 in order to enhance accessibility to the IFPE legacy collection of integral fuel performance experiments data, jointly put together by the...

The Joint Evaluated Fission and Fusion (JEFF) Nuclear Data Library is a collaboration between NEA Data Bank member countries. The JEFF library combines the efforts of its different Working Groups to ...

The Nuclear Data Service of the Data Bank supports the development, compilation, testing, verification and dissemination of experimental and evaluated nuclear data, and develops in-house analysis and...

With the growing importance of SMRs, following the proposal of the CSNI Bureau, the CSNI has decided to create an Expert Group on SMRs (EGSMR), at its 69th meeting held on 2-3 June 2021.

The Expert Group on Small and Modular Reactors (EGSMR) continues to make progress with its forthcoming report 

The Shielding Integral Benchmark Archive and Database (SINBAD) database contains compilations for 46 reactor shielding, 31 fusion neutronics and 23 accelerator shielding experiments.

ICSBEP, SINBAD AND IRPhEP Technical Review Group meetings

NEA Working Party on Scientific Issues of Reactor Systems (WPRS) annual meeting, 19-21 February 2020.

ICSBEP, SINBAD AND IRPhEP Technical Review Group meetings, October 2021.

NEA Working Party on Scientific Issues of Reactor Systems (WPRS) annual meeting, 15-19 February 2021.

EGPRS Task Force members met on 3 April 2023.

High-temperature gas-cooled nuclear reactors are one of the next generation reactor designs. This benchmark consists of a multi-staged code-to-code-to-data thermal hydraulics code validation benchmar...

Left: Test facility for qualification of melt spreading tests. Photo: Argonne National Laboratory (ANL).
Right: Example of corium melt pouring for a melt spreading preparatory test. Photo: Argonne Nat...

The Committee on Nuclear Regulatory Activities (CNRA) is an international committee created in 1989 to guide the NEA concerning safety in the regulation, licensing and inspection of nuclear installat...

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 ...

The VeRCoRs facility mock-up is a reactor containment building at 1/3 scale. The mock-up is instrumented so that its behaviour is monitored from the beginning of construction. More than 700 sensors a...

This report summarises the work done for the activity: “Benchmark analysis on the eXtended Finite Element Method (X-FEM) calculation technology in its use to evaluate the fracture mechanics stress in...

Since its inception in 2002, the operating experience with thermal fatigue mechanisms has been an intrinsic aspect of the technical scope of CODAP, which is a joint database project within the Commit...

Following the recommendations from the technical workshop on “Nuclear Fuel Behaviour during Reactivity-Initiated Accidents” organised by the Nuclear Energy Agency (NEA) in September 2009, a first ben...

This report presents a study performed on a set of common-cause failure (CCF) events within the Nuclear Energy Agency (NEA) International Common-cause Failure Data Exchange (ICDE) Project. The topic ...

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 was multi-unit CCF events.

T...

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...

The aim of this report is to examine whether there are any international variations in the electrical power system designs (“design variations”) of nuclear power plants that affect the system respons...

The present report summarises the main results and learnings from the third phase of the NEA Behaviour of Iodine Project (BIP-3), which was conducted between 2016 and 2019 by the Canadian Nuclear Lab...

In order to reach a better understanding of countries’ different approaches to the evaluation of vibrations detected in piping systems and components, the NEA Committee on the Safety of Nuclear Insta...

Scheme showing the technical scope of NEA ICDE project activities, NEA 

Common-cause failure (CCF) events can significantly affect the availability of safety systems of nuclear power plants. In recog...

^{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...

Female scientists and engineers pioneered the nuclear and radiological fields, with leaders and innovators such as Marie Skłodowska-Curie and Lise Meitner, among many others, establishing the foundat...

Female scientists and engineers pioneered the nuclear and radiological fields, with leaders and innovators such as Marie Skłodowska-Curie and Lise Meitner, among many others, establishing the foundat...

As a low-carbon electricity source, nuclear energy has a role to play in global climate change mitigation efforts.

The "Red Book", is a biennial publication produced jointly by the NEA and the IAEA under the auspices of the joint NEA/IAEA Uranium Group. It is the only government-sponsored publication tracking wor...

This document defines and discusses the purpose and general contents of post-closure safety cases for geological repositories for long-lived radioactive waste. Its aim is to provide a useful point of...

The NEA event reviews the accomplishments of the joint safety projects.

Older issues of the Nuclear Law Bulletin (Nos. 1 to 80).

Anciens numéros du Bulletin de droit nucléaire (nos 1 à 80).

Uranium is the main raw material fuelling all nuclear fission reactors today. Countries around the world use it to reliably generate low-carbon electricity, process heat and hydrogen as part of their...

The International School of Nuclear Law (ISNL) is a two-week programme run annually by the NEA and the University of Montpellier and supported by the International Atomic Energy Agency (IAEA). Coveri...

The application period for the 2023 session is now closed.

The nuclear sector is constantly looking for new technologies that will make nuclear power plants even more reliable, cost-effective and safe.

The group analyses the potential contribution of uranium mining in economic and social development, and explore whether uranium activities are managed to ensure a positive benefit to local and nation...

The transformative activity of mining has numerous economic, social and environmental impacts that can be both positive and adverse for communities, ecosystems and economies. As the uranium industry ...

International Nuclear Law Essentials course

NEA organises a mentoring workshop in the United Kingdom on International Women's Day.

NEA delegation participates in discussions at the Regulatory Information Conference in Washington D.C.

On 11 March 2011, a massive earthquake of magnitude 9.0 on the Richter scale jolted the eastern coast of Japan. An hour after the earthquake, a 14-15 m tsunami, as estimated at the Fukushima Daiichi ...

The goal of EGCUL is to share state-of-the-art knowledge and experience in characterising a large amount of unknown waste derived from nuclear accidents and past nuclear activities.

Radioactive waste is produced in all phases of the nuclear fuel cycle and from the use of radioactive materials in industrial, medical, defence and research applications. Disposal in engineered repos...

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

The international radiological protection community performed a major status review of the situation around the damaged Chernobyl reactor on the 10-year anniversary of the accident. Since then, studi...

The international radiological protection community performed a major status review of the situation around the damaged Chernobyl reactor on the 10-year anniversary of the accident. Since then, studi...

The OECD Nuclear Energy Agency (NEA) fully supports the proposals made by the IAEA Director General Rafael Mariano Grossi to ensure that the seven pillars of nuclear security and safety are maintaine...

Statement of the Steering Committee for Nuclear Energy on the safety and security of operation of Ukraine’s nuclear installations

The NEA’s ruling body the Steering Committee for Nuclear Energy met for its143rd biannual meeting in April 2022.

The NEA survey on the status of nuclear education, training and outreach in member countries is conducted by the NEA Global Forum on Nuclear Education, Science, Technology and Policy Working Group 2:...

The project led by JAEA/CLADS will be dedicated to advanced remote technology for decommissioning under intense gamma-ray radiation environments (e.g. robotics, virtual reality).

MANTRAS includes educational and training courses, events on applications in the medical sector, and access to the available research infrastructures. It focuses in particular on the development of n...

Le Bulletin de droit nucléaire est une publication internationale unique en son genre destinée aux juristes et aux universitaires en droit nucléaire. Ses lecteurs bénéficient d’informations exhaustiv...

Le Bulletin de droit nucléaire est une publication internationale unique en son genre destinée aux juristes et aux universitaires en droit nucléaire. Ses lecteurs bénéficient d’informations exhaustiv...

Le Bulletin de droit nucléaire est une publication internationale unique en son genre destinée aux juristes et aux universitaires en droit nucléaire. Ses lecteurs bénéficient d’informations exhaustiv...

Le Bulletin de droit nucléaire est une publication internationale unique en son genre destinée aux juristes et aux universitaires en droit nucléaire. Ses lecteurs bénéficient d’informations exhaustiv...

Le Bulletin de droit nucléaire est une publication internationale unique en son genre destinée aux juristes et aux universitaires en droit nucléaire. Ses lecteurs bénéficient d’informations exhaustiv...

Le Bulletin de droit nucléaire est une publication internationale unique en son genre destinée aux juristes et aux universitaires en droit nucléaire. Ses lecteurs bénéficient d’informations exhaustiv...

Le Bulletin de droit nucléaire est une publication internationale unique en son genre destinée aux juristes et aux universitaires en droit nucléaire. Ses lecteurs bénéficient d’informations exhaustiv...

Le Bulletin de droit nucléaire est une publication internationale unique en son genre destinée aux juristes et aux universitaires en droit nucléaire. Ses lecteurs bénéficient d’informations exhaustiv...

Le Bulletin de droit nucléaire est une publication internationale unique en son genre destinée aux juristes et aux universitaires en droit nucléaire. Ses lecteurs bénéficient d’informations exhaustiv...

Le Bulletin de droit nucléaire est une publication internationale unique en son genre destinée aux juristes et aux universitaires en droit nucléaire. Ses lecteurs bénéficient d’informations exhaustiv...

Le Bulletin de droit nucléaire est une publication internationale unique en son genre destinée aux juristes et aux universitaires en droit nucléaire. Ses lecteurs bénéficient d’informations exhaustiv...

Le Bulletin de droit nucléaire est une publication internationale unique en son genre destinée aux juristes et aux universitaires en droit nucléaire. Ses lecteurs bénéficient d’informations exhaustiv...

Le Bulletin de droit nucléaire est une publication internationale unique en son genre destinée aux juristes et aux universitaires en droit nucléaire. Ses lecteurs bénéficient d’informations exhaustiv...

Le Bulletin de droit nucléaire est une publication internationale unique en son genre destinée aux juristes et aux universitaires en droit nucléaire. Ses lecteurs bénéficient d’informations exhaustiv...