The conference will provide a forum for ministers, policymakers, senior officials and experts to engage in high-level dialogue on the role of nuclear energy in the transition to clean energy sources,...

This course is addressed to researchers in Radiation Physics and its applications. The main objective is to provide the participants with a detailed description of the new, 2020, version of PENELOPE,...

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.

Following the accident at the Fukushima Daiichi Nuclear Power Plant, many countries began funding research and development on nuclear fuel designs with enhanced accident tolerance (ATFs). ATFs have i...

The Boiling Water Reactor Turbine Trip (BWRTT) Benchmark was established to challenge the coupled system thermal-hydraulic/neutron kinetics codes against a Peach-Bottom-2 (a GE-designed BWR/4) turbin...

To ensure reliable modelling of neutron physics within a state-of-the-art transient code, the neutron kinetics part of such a code should be based on the full-scale calculation of the space-time neu...

The Liquid Metal Fast Reactor (LFMR) is one of the next generation reactor designs. This benchmark consists of steady-state numerical predictions of Texas A&M University (TAMU) separate effect tests ...

TVA Watts Bar Unit 1 Multi-Physics Benchmark

The new project assembled global experts at the NEA.

The NEA Data Bank organised a PENELOPE training course at the University of Barcelona in Spain on 11-15 July 2022

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 Working Party on Scientific Issues and Uncertainty Analysis of Reactor Systems (WPRS) and its expert groups co-ordinate benchmark activities on Reactor Single- and Multi-Physics. The benchmark ac...

A number of tests with detail well documented neutronics and thermal-hydraulics measurements data have been performed at the Rostov Unit 2 (Rostov-2) nuclear power plant (NPP). The reactor type is a ...

Forsmark 1 and 2 Boiling Water Reactor Stability Benchmark

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

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 ...

The goal of the LOCA-MIR experiments is to study the behaviour of high burnup, gadolinia-doped fuel under design-basis LOCA conditions.

This workshop is organised by the NEA Radioactive Waste Management Committee (RWMC) and hosted by the Nuclear and Radioactive Waste Agency (ANDR), Romania.

At the back end of the nuclear fuel cycle, ...

The OECD Nuclear Energy Agency (NEA), Idaho National Laboratory, and International Atomic Energy Agency (IAEA) are co-organising the Sixth International Workshop on Structural Materials for Innovativ...

PHITS (Particle and Heavy Ion Transport code System) is a general purpose Monte Carlo particle transport simulation code developed under a collaboration between Japan Atomic Energy Agency (JAEA) and ...

Hydrogen is expected to play an essential role as part of sustainable and resilient pathways to net zero. There is growing momentum among CEM countries for scaling-up the production of low-carbon hyd...

OpenMC is a community-developed Monte Carlo neutron and photon transport simulation code. It is capable of performing fixed source, k-eigenvalue and subcritical multiplication calculations on models ...

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 ...

This report provides insights from a survey of Nuclear Energy Agency (NEA) member countries on the concepts used to establish effective measures to cope with external flooding hazards and on the term...

Under the guidance of the Nuclear Science Committee (NSC), the Task Force on Demonstration of Fuel Cycle Closure including Partitioning and Transmutation (P&T) for Industrial Readiness by 2050 (TF-FC...

The Specialists Workshop on Advanced Instrumentation and Measurement Techniques for Experiments Related to Nuclear Reactor Thermal Hydraulics and Severe Accidents (SWINTH-2019), co-organised by the S...

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...

Advanced nuclear fuel cycles to improve the safety, sustainability and economics of nuclear energy are being investigated worldwide. Partitioning and transmutation (P&T) is one of the candidate techn...

The modelling and simulation of nuclear systems allow scientists and engineers to probe aspects of the operation of these systems beyond what has been precisely measured. This has numerous applicatio...

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...

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...

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...

View of Dragon Reactor. Photo: AEA Technology.

In 1959, twelve OECD countries began the Dragon Reactor Experiment (DRE) to build a reactor at Winfrith in Dorset, United Kingdom. The Dragon was the fi...

NEA Director-General

Appearance of Unit 1 and 2 reactor buildings at Fukushima Daiichi Nuclear Power Station of Tokyo Electric Power Company Holdings (June 2022). Photo: Japan Nuclear Regulation Authority

The FACE projec...

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...

Due to circumstances imposed by the ongoing COVID-19 pandemic, this year's event will take place online.

The 6^th edition of the annual NEA TDB course on the topic of thermodynamic data collection a...

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...

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...

Investigation for damage condition and radiation dose in Unit 3 at Fukushima Daiichi Nuclear Power Station of Tokyo Electric Power Company Holdings (December 2019). Photo: Japan Nuclear Regulation Au...

Under the guidance of the Working Party on Scientific Issues and Uncertainty Analysis of Reactor Systems (WPRS), the Expert Group on Physics of Reactor Systems (EGPRS) performs specific tasks associa...

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...

CHIP experimental facility to study fission product transport and deposition in the primary circuit. Photo: IRSN

Following several years of experimental research in the field of source terms analysis...

Feeders on the Reactor Face in the Feeder Cabinet Photo: Canadian Nuclear Safety Commission (CNSC)

The Component Operational Experience, Degradation and Ageing Programme (CODAP) combines the follow-u...

High Burnup Experiments in Reactivity Initiated Accident (HERA) is dedicated to the understanding of LWR fuel performance at high burn-up under reactivity-initiated accidents (RIA).

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 Multinational Design Evaluation Programme (MDEP) continues under a new organisational structure after the second Management Board meeting.

Over its 25 years of existence, the working party has contributed many topics and has led advances in criticality safety studies.

The NEA Nuclear Law Committee and the Contracting Parties to the Paris Convention held their meetings to discuss key issues and future work in the field of nuclear law.

The first QUENCH-ATF joint project test was successfully completed by the KIT team on 17 July 2022.

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

The application period for the 2022 session is closed.

Information about the 2023 programme will be available in the fall.

NEA hosted two workshops in Romania on 25-29 July 2022.

An NEA delegation led by Director-General William D. Magwood, IV, visited Japan from 18-24 July for a number of nuclear-energy focused meetings and events.

Nuclear energy is an important source of low-carbon electricity and plays a significant role in avoiding carbon emissions. It has the potential to contribute further to the decarbonisation of the wor...

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...

The International School of Nuclear Law returns to the University of Montpellier

This report from the NEA Working Group on Human and Organisational Performance establishes a common understanding around the terms human performance (HP), organisational performance (OP), and human a...

The fourth edition of the IRPS was held from 22-26 August in Stockholm, Sweden.

Future decommissioning and radiological waste management experts gathered at the Aachen Institute for Nuclear Training in Stolberg, Germany. 

As a follow-up to the 2010 NEA report Nuclear Fuel Behaviour under Reactivity-initiated Accident (RIA) Conditions: State-of-the-art Report 2010, this report presents the state-of-the-art knowledge on...

Prevention, mitigation and management of potential accidents in nuclear power plants

The GB-TG discussed the latest data, actions and objectives as part of their mission to improve gender balance in the nuclear energy sector. 

The Country-Specific Safety Culture Forum takes place in Canada.

NEST Board assembles for 6^th meeting in Paris 

The event gathered 129 participants from 75 international institutions.

Nuclear Education, Skills and Technology Press Pitch 2022

Members of the Expert Group on comparison and understanding of Dose Prognosis (EGDP) met on 5-6 October 2022

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

Nuclear-hydrogen drives discussions at the Global Clean Energy Action Forum in Pittsburgh.

The cold leg mixing computational fluid dynamics (CFD) – uncertainty quantification (CLM-UQ) benchmark is the fifth benchmark concerning CFD applications to nuclear reactor safety to be organised in ...

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...

Published every year, the NEA Annual report includes an overview of NEA's activities and publications produced during the year, as well as the latest developments in nuclear energy sector around the ...

International Mentoring Workshop in Spain

As governments around the world are committing to reaching net zero emissions by 2050, many countries are looking at the role hydrogen can play in mitigating climate change. This page provides more i...

Small modular reactors (SMRs) are nuclear reactors with power output less than 300 megawatts electric (MWe), with some as small as 1-10 MWe.

The NEA Working Group on Digital Instrumentation and Controls (WGDIC) has agreed that a consensus position on the impact of cyber security features on digital instrumentation and control (I&C) system...

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...

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

The International Handbook of Evaluated Reactor Physics Benchmark Experiments (IRPhE) contains reactor physics benchmark specifications that have been derived from experiments that were performed at ...

FIDES-II members hold meeting at Idaho National Laboratory

Nuclear Fuel Cycle Facilities Safety Week

NEA Steering Committee for Nuclear Energy biannual meeting took place on 20-21 October 2022.

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

The primary purpose of the International Criticality Safety Benchmark Evaluation Project (ICSBEP) is to compile critical and subcritical benchmark experiment data into a standardised format that allo...

The International Criticality Safety Benchmark Evaluation Project (ICSBEP) Handbook contains criticality safety benchmark specifications that have been derived from experiments that were performed at...

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...

The 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...

The 2021 edition can be downloaded online.

Since 2001, the NEA has supported the Senior Expert Group on Safety Research Thermal-hydraulics (SETH), the Primärkreislauf-Versuchsanlage - Primary Coolant Loop Test Facility (PKL), PKL-2 and PKL-3 ...

^{Picture: ANSTO}

The in-person registration to attend this event is now closed. Interested participants can still register to join the event virtually through the link above.

The NEA Working Party on T...

JANIS (Java-based nuclear information software) is an application designed to facilitate the visualisation and manipulation of nuclear data. JANIS will be helpful to engineers and physicists who use ...

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...

Around 90 radiological protection professionals and researchers, representing regulators, research institutions and government entities from NEA member countries and beyond, joined Preparedness for P...

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...

The new task force will explore radiological protection and publich health challenges of SMRs.

MeshTal Viewer user manual

^{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...

End state of debris in the units 1-3 of Fukushima Daiichi Nuclear Power Station of Tokyo Electric Power Company Holdings. Photo: Japan Atomic Energy Agency

The Preparatory Study on Analysis of Fuel D...

Units 1 and 2 End of Fukushima Daiichi Nuclear Power Station of Tokyo Electric Power Company Holdings (4^th October, 2011). Photo: Tokyo Electric Power Company Holdings

The Benchmark Study of the Acci...

Under the auspices of the NEA Nuclear Science Committee (NSC), the Working Party on Scientific Issues of Advanced Fuel Cycles (WPFC) was established to co-ordinate scientific activities related to ad...

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 Expert Group on Used Nuclear Fuel criticality (EGUNF) organised a Phase IIB benchmark to re-examine code and nuclear data performance for BWR lattice calculations and focus on the depletion m...

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...

^{Figure 1: Generation IV International Forum [gen-4.org]}

The Nuclear Energy Agency (NEA) and Natural Resources Canada (NRCan) organised an international workshop on the implementation of radioactive w...

The NEA Working Group on Safety Culture (WGSC) gathered delegates for its biannual meeting on 18-20 October 2022.

Nuclear emergency planning, response and recovery

Studsvik’s pool facility for storage and inspection of SMILE materials, left: 29 tonnes transportation flask, three pools each about 8 meters deep; and right: pool-in-pool for cutting and inspections...

A delegation led by NEA Director-General William D. Magwood, IV attended the conference on 26-28 October 2022.

Two new reports from the WGFS highlight the latest developments in RIA research.

The Integration Group for the Safety Case (IGSC) was established in 2000 by the OECD Nuclear Energy Agency (NEA) Radioactive Waste Management Committee (RWMC) in recognition of the need for continued...

Left: Scheme of Studsvik LOCA test facility Right: Microstructure of fragmented nuclear fuel, Studsvik

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

TCOFF Phases

First Phase (2017-2020)

The TCOFF project established a framework for the exchange of technical...

Photos: SFP testing. Left: fuel assembly after a Zr fire; right: fire ignition test. SNL/USNRC.

The goal of the Sandia Fuel Project was to provide experimental data relevant for hydraulic and ignitio...

PKL facility. Photo: FRAMATOME, Germany

The Experimental Thermal Hydraulics for Analysis, Research and Innovations in Nuclear Safety (ETHARINUS) project serves the objectives of investigating phenome...

The COP27 NEA delegation were at the forefront of several discussions on the pathways that nuclear energy can offer to reduce carbon emissions.

Community and industry come together to workshop radioactive waste management strategies

NEA article from the Nuclear-Hydrogen Digest: Nuclear Energy in the Hydrogen Economy, published by NICE Future and the NEA.

Gender balance policy framework approved

The FSC workshop participants discussed best practices for community and youth engagement around the topic of radioactive waste disposal.

- Registration for the 2022 course is closed -

This training course focused on communicating risk on a daily basis. Its aim was to improve the effectiveness of risk communication in order to enhance ...

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...

Image source: KKG

As one of the NEA member countries with the lowest carbon emissions, Switzerland is well positioned to achieve its objective of net zero carbon emissions by 2050. The main features ...

The 2021 edition contains data from 169 experimental series that were performed at 57 nuclear facilities.

The Working Group on the Radiological Protection Aspects of Decommissioning Activities at Nuclear Power Plants (WGDECOM) holds its 12^th meeting in Germany

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

Courses were held in November 2022 in paris, France.

NEA take part in International Youth Nuclear Congress which was held 27 November - 2 December 2022 in Komiyama, Japan. (Image source: IYNC)

The NEA took part in the ENEN2plus project which aims to address the key challenges of energy security and climate change through training and education on the occasion of the 80th anniversary of the...

Second Workshop on International Harvesting Co-operation focused on the status of aged metals harvesting and opportunities for international collaborative research.

On 2-4 November, the NEA Working Group on Human and Organisational Factors (WGHOF) held its 32^nd biennial meeting at the Nuclear Energy Agency headquarters in Paris, France.

Attaining net zero carbon emissions by 2050 will require financing and developing significant capacity of new nuclear power generation in the coming years and decades. To facilitate this process, the...

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. 

Realising the contribution of nuclear energy to achieving net zero carbon emission in 2050 will require raising significant amounts of capital at competitive rates. On the basis of work under the aeg...

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...

Pierre Strohl, former Deputy Director-General of the NEA, has passed away.

NEA and NRA held joint conference on regulators' views in Tokyo, Japan 10 years after TEPCO Fukushima Daiichi NPS Accident. 

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...

Hydrogen is expected to play important roles in decarbonised energy systems, as an energy source for otherwise hard-to-electrify sectors as well as a storage vector to enhance power system flexibilit...

With an electricity system defined by high shares of hydropower, large capacity for interconnection with its neighbours and low carbon intensity, Switzerland is well positioned to attain its objectiv...

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

The Nuclear Law Committee (NLC) is a highly focused group of specialists designated by the NEA member countries, comprising lawyers, policy makers, academics and from time to time, technical experts....

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 Nuclear Law Committee (NLC) established the Working Party on the Legal Aspects of Nuclear Safety (WPLANS) in 2016 to support the NEA’s efforts to strengthen its work in the nuclear safety area.

The Convention on the Establishment of a Security Control in the Field of Nuclear Energy ("Security Control Convention") and the Protocol on the Tribunal established by the Security Control Conventio...

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...

This structural materials Joint Experimental Program (JEEP) is aimed at developing the capability to perform a variety of in-core mechanical testing measurements.

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.

Robotics and remote systems (RRS) are essential technologies for work in the radiation environments typically encountered in the nuclear back-end, such as in radioactive waste management and decommis...