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

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 International Criticality Safety Benchmark Evaluation Project (ICSBEP) and International Reactor Physics Experiments Evaluation Project (IRPhEP) Technical Review Groups, and the Shielding Int...

Photo credit: Joel A. Kulesza, Roger Lee Martz, LANL LA-UR-17-23854

Suppliers play a critical role in the construction and operation of nuclear power plants. With a declining number of nuclear grade suppliers and a loss of skills in some regions, supply chain oversig...

4-8 March 2024 

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Programme

The 2024 International Nuclear Law Essentials (INLE) programme will be conducted under the leadership of Paul Bowden, Honorary Professor of Law at the Nottingham L...

Under the guidance of the Nuclear Science Committee (NSC), the Working Party on Scientific Issues and Uncertainty Analysis of Reactor Systems (WPRS) studies the reactor physics, fuel performance, an...

The NEA Radioactive Waste Management Committee (RWMC) created the Ad-hoc Group on the Extended Storage and Transportation (AhGEST) in 2021. Following the work on these two topics, AhGEST presented it...

NEA Leaderership Series brought together three leaders in the nuclear sector to discuss what creates effective leadership and why it's essential for the nuclear sector's success. 

The NEA held its second Risk Communication Training Course on 13-16 November in Abu Dhabi.

Declaration draws on NEA analysis which shows that that tripling nuclear energy capacity by 2050 provides the world with a realistic and practical path to meet net zero carbon emissions goals. 

The Working Group on Supply Chain (WGSUP) works to provide a mechanism for nuclear safety regulators and technical support organizations (TSOs) to share their knowledge and experience on regulatory a...

The NEA will participate in the 28th UN Climate Change Conference of the Parties (COP28) in Dubai, United Arab Emirates, to shed light on nuclear energy’s role in addressing climate change.

NEA workshop addresses the importance of a secure supply chain of medical radioisotopes to save lives.

The Working Group on Reactor Oversight (WGRO) works to provide a mechanism for nuclear safety regulators and Technical Support Organisations (TSOs) to share their knowledge and experience on both, th...

NEA organised the first official visit to Ghana on 1-6 November 2023.

To celebrate the achievements of the Nuclear Education, Skills and Technology (NEST) Framework since its inception in 2019, the NEA will hold a virtual NEST Fellows Award Competition on 28 November 2...

On 11-12 October 2023, the NEA Task Group on Improving the Gender Balance in the Nuclear Sector (GB-TG) met in Paris to discuss ongoing work and future activities.

FIDES-II member assembled at the Japan Atomic Energy Agency (JAEA) in Mito, Japan.

In preparation for INEX-G, the NEA Expert Group on the Sixth International Nuclear Emergency Exercise held a briefing session on 19 October.

The NEA ATLAS3 and NEA ETHARINUS projects organised a workshop on 7-9 November 2023. 

The Fire Incidents Records Exchange (FIRE) Project started in 2002 and phase 7 of the project began in 2023 for a duration of three years, with 14 countries currently participating. The main purpose ...

The benchmark will predict the Critical Heat Flux (CHF).

The NEA hosted the 16th edition of information exchange meetings on actinide and fission product partitioning and transmutation (16IEMPT).

The 13^th National Workshop organised by the NEA Forum on Stakeholder Confidence (FSC) took place on 23-25 October in Ohio, United States.

While the ongoing war in Ukraine has not thus far resulted in any major radiological threats to public health and safety, it is the first time in history that a country with significant nuclear and r...

The NEA and IAEA jointly organised an international workshop in Vienna, Austria, on 2-6 October 2023.

Established in 2014, the WGDECOM unites 19 experts from 12 countries in developing a process to better share radiological protection data.

The NEA Second Framework for Irradiation Experiments (FIDES-II) supports the fuel and material experimental needs of nuclear safety regulators, technical support organisations, research institutions ...

In November 2023, the NEA Data Bank held two beginner level courses in Paris, France.

The Integration Group for the Safety Case (IGSC) has been organising a series of symposia every five years focusing on the development of a competent and robust safety case since 2007, in co‑operatio...

International workshop convened experts in the field to United States.

The mission of the CRPPH Working Party on Nuclear Emergency Matters (WPNEM) is to improve nuclear emergency management systems within member countries, and to share its knowledge and experience widel...

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

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

The Critical Heat Flux (CHF) benchmark exercise of the Task Force on Artificial Intelligence and Machine Learning for Scientific Computing in Nuclear Engineering leverages the recently published CHF ...

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 INCA experiments will provide comparative data on the irradiation induced creep of current Zr alloys and Cr coated samples

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

Date: 14-17 November 2023

Applications for the Nuclear Risk Communication Training Course (RCTC) are now closed.

Following the first edition of the Nuclear Risk Communication Training Course, the NEA will host the 2023 sessio...

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 and enhancing stakeholder engagem...

RASPLAV-A-Salt Facility, EREC.

The RASPLAV* Project was regarded as a successor to the Three Mile Island Vessel Investigation Project (TMI-VIP) completed in 1993. The TMI-VIP Project was set up t...

Control room, PAKS NPP.

Software-based systems are used and retrofitted in operating nuclear power plants worldwide. The failure modes of both hardware and software in these systems are to some ext...

JAEA  High-temperature Engineering Test Reactor Photo: Japan Atomic Energy Agency (JAEA)

The Committee on the Safety of Nuclear Installations (CSNI) Task Group on Advanced Reactor Experimental Facil...

There is significant international interest in the effects of temperature on criticality safety evaluations. Improved access to nuclear data, notably thermal scattering data S(α,β) for hydrogen in ic...

The International Framework for Nuclear Energy Cooperation (IFNEC) hosted its first Ministerial Conference since the COVID-19 pandemic on 1-3 November 2023. Organised in co-operation with the Ghana A...

NEA and CNIC announced plans for collaborative efforts to help ensure the supply of medical radioisotopes.

This report includes information provided confidentially by supply chain participants to support this new work of the NEA, which follows previous work undertaken by the High-level Group on the Securi...

Current status and future actions to ensure the reliable supply for molybdenum-99 (⁹⁹Mo), and a conversation on a new generation of innovative radioisotopes for diagnostics and therapy

The NEA hosted...

Post-test view inside OLHF-4 vessel showing penetrations and resolidified weld material at the vessel bottom.

During a severe accident, the lower head of a reactor pressure vessel (RPV) can be subj...

                                                                                  EPICUR facility, IRSN.

STEM phases

First phase (2011-2015)

The STEM Project was initiated with a first phase in 20...

The Steering Committee for Nuclear Energy held its 146^th Session in Paris.

Experts from 16 countries met on 13-15 September for the 24^th annual Working Group on Fuel Safety GFS meeting in Paris. 

Photo: RBHT Test Facility. US NRC.

Modelling reactor core behaviour under accident conditions with delayed re-introduction of cooling water (commonly referred to as reflood) is a challenge for safety...

A new collaboration with the EPRI and the NEA will focus on waste management strategies for small modular reactors.

Medical Radioisotopes

_{Image adapted from Romolo Tavani, Shutterstock.}

Exploring how innovative nuclear systems require innovative waste management solutions

The new NEA Joint Project on Waste Integration for Small and Adv...

Information System on Occupational Exposure (ISOE) is jointly sponsored by the Nuclear Energy Agency (NEA) and the International Atomic Energy Agency (IAEA). Since 1992, ISOE has provided a forum for...

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...

The NEA and CAEA held the NEA-China Forum on Nuclear Decommissioning and Radioactive Waste Management in Beijing. 

Leaders from regulation, government, industry, academia, international organisations and NGOs on 5-7 September 2023 in Paris.

The NEA workshop took place in Fukushima on 29-31 July.

Encouraging greater cohesion of social sciences and STEM to push the nuclear sector forward

The NEA Global Forum on Nuclear Education, Science Technology and Policy (the NEA Global Forum) held a coun...

Fire protection layer for electrical cables

The Stress Corrosion Cracking and Cable Ageing Project (SCAP) lasted four years (2006-2010). The project’s main objectives were to:

• establish two comple...

Illustration of the Horonobe Underground Research Laboratory and locations of the in situ experiments planned in each of the three HIP Joint Project task

The Horonobe International Project (HIP) is a...

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

Ahmad Sleiman, a PhD student in neurotoxicology at IRSN, talks about his NEST Framework Fellowship.

While there is a growing interest in the deployment of small modular reactors (SMRs) as a promising option to help mitigate climate change, further international efforts are needed to accelerate the ...

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 ...

View of the RASPLAV-3 Facility.

The Material Scaling (MASCA) Project was a follow-up of the RASPLAV Project and investigated in-vessel phenomena during a severe accident with core melt. Specifica...

Scheme of the PSB-VVER facility, EREC

The NEA PSB-VVER project provided unique and useful experimental data for code validation using the PSB-VVER test facility. The PSB-VVER facility is a large-scal...

PKL facility. Photo: FRAMATOME, Germany

The Primärkreislauf-Versuchsanlage (Primary Coolant Loop Test Facility [PKL]) is a facility owned and operated by Framatome GmbH (formerly AREVA NP) in Erlange...

^{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...

Scheme of the ROSA LSTF facility, JAEA

The Rig-of-safety Assessment (ROSA) Project aimed to resolve issues in thermal-hydraulics analyses relevant to light water reactor (LWR) safety using the Japa...

General view of the EREC test facility BC V-213, source: EREC

There are several VVER-440/213* type nuclear power plants operating in the Czech Republic, Hungary, Slovak Republic, Russia and Ukraine...

Image: Microscopic examination of U-bearing particles collected at Fukushima-Daiichi, JAEA

TCOFF Phases

First Phase (2017-2020)

The Thermodynamic Characterisation of Fuel Debris and Fission Products ...

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...

New NEA-UK programme to bring Ukrainian nuclear energy experts to the Agency. 

The Expert Group on Reactor Systems Multi-Physics (EGMUP) advances the state of the art in establishing processes and procedures for certifying experimental data and benchmarking multi-physics multi-...

The EGMUP Task Force on artificial intelligence and machine learning will design benchmark specifications to evaluate the performance of AI/ML in multi-physics modeling and simulation of reactor syst...

Electrical cable fire test, IRSN.

The NEA PRISME project addressed in a series of 3 phases from 2006 till 2022 fire risk research. Operating experience shows that fire is one of the highest risks i...

WPLANS members gathered on 27 September 2023.

The NEA announced today that it will co-operate with Net Zero Nuclear, the platform that the global nuclear industry has launched to deliver a Financing Nuclear work stream during COP28 in Dubai.

In a core melt accident, if the molten core is not retained in-vessel despite severe accident mitigation actions, the core debris will relocate to the reactor cavity region and interact with the stru...

PAKS Nuclear Power Plant, Hungary.

During a fuel crud removal operation on the Paks-2 unit on 10 April 2003, several fuel assemblies were severely damaged. The assemblies were being cleaned in a sp...

Image at melt distribution and its contour at MBC (KAERI).

The Committee on the Safety of Nuclear Installations (CSNI) Working Group on Analysis and Management of Accidents (WGAMA) initiated a co...

Scheme of the THAI+ facility, Becker Technologies.

The experimental investigations carried out in the frame of the THAI (2007-2009), THAI-2 (2011-2014) and THAI-3 (2016-2019) projects contributed s...

Multi-compartment THAI+ test facility, Becker Technologies GmbH.

In the wake of the OECD/NEA THAI project, conducted in three phases from 2007 until 2019, a new project, THAI Experiments on Mitigat...

View looking down onto the LOFT reactor

The Loss-of-fluid Test (LOFT) Research Programme was originally set up by the US Nuclear Regulatory Commission. Part of the programme was later broadened int...

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 WPLDF was established to identify and address issues of application of the nuclear liability regimes to deep geological repositories (DGRs) and other radioactive waste disposal facilities. 

The 12th International Conference on Nuclear Criticality Safety (ICNC) was held in Sendai, Japan, on 1-6 October 2023. Twenty years after the last conference in Japan, which was held in Tokai-mura as...

NEA and French Ministry for Energy Transition hosted Roadmaps to New Nuclear conference. 

NEA projections show that in order to successfully achieve net zero by 2050, nuclear energy capacity will need to at least double and potentially triple compared to today. As a result, the topic of n...

The NEA and the Ministry of Energy Transition of France will host the first government-industry conference.

A collective statement of the NEA Radioactive Waste Management Committee from 2014 states that maintaining records, knowledge and memory (RK&M) for a radioactive waste repository after its closure wi...

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

Knowledge of basic nuclear physics data is essential for the modelling and safe operation of all types of nuclear facilities. The de facto international standard format, Evaluated Nuclear Data File 6...

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 Task Force on Dose Rate Calculations for Irradiated Fuel Assembly was launched in 2015 to assess code predictions of dose rates from bare spent fuel assemblies and to benchmark multiple codes and...

More than 50 participants from 25 countries took part in the five-day course.

The goal of the Nuclear Energy Agency (NEA) Working Party on Nuclear Criticality Safety (WPNCS) Subgroup on Experimental Needs for Criticality Safety Purposes (SG-5) was to highlight the needs of int...

Experts attended NEA event in France.

The NEA Working Group on the Analysis and Management of Accidents convened for its annual meeting to discuss ongoing work related to accident strategy and management.

One of the major achievements of the OECD Nuclear Energy Agency (NEA) is the knowledge it has helped to generate through the organisation of joint international research projects. Such projects, prim...

The disposal of long-lived radioactive waste in a deep geological repository (DGR) is a scientifically and technically credible solution that meets the need for long-term safety without reliance on a...

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 WPTES aims to address technical, environmental and safety issues in the decommissioning of nuclear installations and legacy management.

ISNL 2023 gathered 60 graduate students and professionals from across the world.

The main mission of the Working Group on Human and Organisational Factors (WGHOF) is to improve the understanding and technical basis for treating human and organisational factors within the nuclear ...

The event examines how nuclear safety culture is affected by the national cultural context of the country operating a nuclear facility. It brings together experts representing both the nuclear indust...

Burn-up credit is a safety approach that accounts for the reduction in the reactivity of configurations with spent nuclear fuel due to the change in their composition after irradiation.

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...

The International Nuclear Law Essentials (INLE) is a one-week programme run by the NEA covering practical issues in international nuclear law.

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...

Image: Microscopic examination of U-bearing particles collected at Fukushima-Daiichi, JAEA

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...

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

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...

There is a consensus in the international community that geological repositories provide the necessary long-term safety and security to isolate long-lived radioactive waste. However, despite the tech...

The scope of the proposed project is therefore to perform practical exercises of demonstration of the SAPIUM approach.

NEA Working Group on Analysis and Management of Accidents (WGAMA) initiated this activity focusing on computational fluid dynamics (CFD) in nuclear reactor safety (NRS).

A CRPPH's task force to provide a high-level analysis report on radiological protection challenges related to the deployment of SMRs. 

Irradiation Vessel with Coupons, CNL

The NEA Behaviour of Iodine Project (BIP) was created to provide separate effects and modelling studies of iodine behaviour in a nuclear reactor containment bui...

PANDA vessel assembly (construction phase, 1993), PSI.

The PANDA project is a follow-up of the HYMERES-2 project, and its general objective is to advance the knowledge on the containment of thermal...

Scheme of the DIVA Facility, IRSN

The Fire Risk Assessment through Innovative Research Project is a follow-up of the PRISME project series which addresses new fire scenarios and new topics of inter...

The objective of the NEA THAI-3 project was to address open questions concerning the behaviour of hydrogen, iodine and aerosols under severe accident conditions in the containment of water cooled rea...

The eighth instalment of the workshop on computational fluid dynamics for nuclear reactor safety (CFD4NRS-8) was organised by the Nuclear Energy Agency (NEA) Committee on the Safety of Nuclear Instal...

The WPMO addresses management and organisational issues for decommissioning of nuclear installations and legacy management projects.

The HDCS will develop a holistic process for decision making and provide guidelines to allow an integral progression from recognition to resolution, to support the decommissioning and management of c...

The main objectives of the Special International Nuclear Regulatory Inspection Workshop on Digital Instrumentation & Control (DI&C), which was jointly held by the Nuclear Energy Agency’s (NEA) Workin...

The EGCDL will address costing issues for decommissioning of nuclear installations and legacy management as a level three expert group.

The EGRRS supports NEA member countries to optimise the development of national radioactive waste management and decommissioning programmes through the application of robotic and remote systems.

In May 2022, the Forum on Stakeholder Confidence (FSC) and the Integration Group for the Safety Case (IGSC) held a Joint Workshop with stakeholders from Germany, Sweden and Switzerland to assess the ...

The application period for the 2023 session is now closed.

Nuclear Energy Agency Welcomes Assistant Secretary Huff’s Announcement on the United States’ Decision to Join the NEA Data Bank

Nuclear Energy Agency welcomes the United States' decision to join the NEA Data Bank

The 2023 edition of the IRPS took place in person in Stockholm, Sweden from 14-18 August 2023, in co-operation with the Swedish Radiation Safety Authority (SSM) and the Centre for Radiation Protectio...

French Ministry for Energy Transition and OECD Nuclear Energy Agency to hold joint conference in Paris.

The NEA participated in the 14th Clean Energy Ministerial in Goa, India.

The NEA Working Party on Nuclear Criticality Safety (WPNCS) held its bi-annual meetings in June 2023

Co-organised with the UK Atomic Energy Authority, the course took place on 20-22 June 2023.

FACE project members met on 28-30 June 2023 in Paris, France.

Benchmarking the progress of SMRs continues with the release of the NEA SMR Dashboard: Volume II. 

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...

The Expert Group on a Data and Information Management Strategy for the Safety Case (EGSSC) shall address activities that help RWMOs to describe and better understand the data and information they hol...

TCOFF-2 members discuss future activities.

The NEA High-level Group on Low-Dose Research (HLG-LDR) met on 27-28 June 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...

The NEA workshop gathered experts to discuss the challenges and opportunities related to the demise of zero power reactors.

NEA delegation led by Director-General Magwood was in Romania for a series of meetings and to co-host a workshop.

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

Supporting the use of computational fluid dynamics for nuclear reactor safety

Innovations in nuclear safety thermal-hydraulics

The NEA gathered nuclear law experts for meetings in June 2023.

Many African countries are considering nuclear energy in their plans to increase electricity supply while reducing emissions. As part of the Summit for a New Global Financing Pact the OECD Nuclear En...

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 CRPPH has long served as a forum for exchange and co-operation, to establish best practices, contribute to the development of the key recommendations of the International Commission on Radiologic...