View of the ATLAS experimental loop. KAERI, Korea
The Advanced Thermal-hydraulic Test Loop for Accident Simulation (ATLAS) is a thermal-hydraulic integral effect test facility for advanced light wate...
Published date:
29 January 2025
The NEA ATLAS3 and NEA ETHARINUS projects organised a workshop on 7-9 November 2023.
Published date:
23 November 2023
The 9th edition of the Computational Fluid Dynamics for Nuclear Reactor Safety workshop was hosted by Texas A&M University on 20-22 February 2023.
Published date:
23 March 2023
The CSNI Code Validation Matrix (CCVM) is a repository of nuclear data and identified phenomena used to run tests, experiments and other procedures to ensure safety assessments and related operationa...
Published date:
25 March 2025
Published date:
7 May 2010
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...
Published date:
4 October 2024
The Nuclear Energy Agency (NEA) has launched the fourth phase of the Advanced Thermal-Hydraulic Test Loop for Accident Simulation (ATLAS) project, continuing its mission to address critical thermal-h...
Published date:
5 June 2025
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...
Published date:
31 August 2023
Understanding the accident at the Fukushima Daiichi Nuclear Power Plant is important for safe and timely decommissioning of the reactors. This objective, together with the development of better compu...
Published date:
28 September 2021
NEA/CSNI/R(2015)18
In 2012, following a proposal from Japan, the Committee on the Safety of Nuclear Installations (CSNI) decided to initiate a joint project to conduct a study of the accident progression for the Fukush...
Published date:
1 March 2015
Units 1 and 2 End of Fukushima Daiichi Nuclear Power Station of Tokyo Electric Power Company Holdings (4th October, 2011). Photo: Tokyo Electric Power Company Holdings
The Benchmark Study of the Acci...
Published date:
25 November 2022
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...
Published date:
6 October 2023
More than ten years after the Fukushima Daiichi Nuclear Power Plant accident, many lessons have been learnt that have helped improve preparedness for nuclear emergencies and awareness of the global r...
Published date:
18 May 2022
NEA/CNRA/R(2022)2
This report presents nuclear plant operator and regulatory practices in the area of severe accident management (SAM) in general and more specifically the regulation of its severe accident mitigation ...
Published date:
8 April 2025
Photo of CEA VITI facility
The COrium Properties for reactor Simulation and uncertainties (COPS) project began in April 2024 its five-year programme to investigate the thermo-physical properties of c...
Published date:
4 February 2025
10.1787/6b12e37e-en
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...
Published date:
12 June 2025
PKL facility. Photo: FRAMATOME, Germany
The Experimental Thermal Hydraulics for Analysis, Research and Innovations in Nuclear Safety (ETHARINUS) project was launched in October 2020 to address knowle...
Published date:
31 January 2025
CHIP experimental facility to study fission product transport and deposition in the primary circuit. Photo: ASNR
Following several years of experimental research on source term analysis conducted und...
Published date:
24 April 2025
The experience mostly derived from Chernobyl and Fukushima post-accident situations has shown that the management of contaminated food after such nuclear disasters can lead to a number of public heal...
Published date:
9 June 2022
Project members gathered at Argonne National Laboratory in Lemont, Illinois.
Published date:
9 October 2024
The fourth FACE meeting brought together experts to Cologne, Germany.
Published date:
27 February 2024
26 -
27 September 2024
Argonne National Laboratory, Building 240, Room 1416, Lemont, IL, United States
Context of the workshop
Since its inception, the Nuclear Energy Agency (NEA) has served as a flexible and powerful platform for multinational research co-operation, particularly in areas related to n...
Published date:
10 September 2024
This is one of the main conclusions of the FRAME workshop, organised on 26-27 September 2024.
Published date:
4 October 2024
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...
Published date:
3 February 2025
Panda facility under construction. Photo courtesy of the Paul Scherrer Institute
HYMERES phases
First phase (2013-2016)
The main objective of the first phase of the Hydrogen Mitigation Experiments fo...
Published date:
12 August 2024
NEA/CSNI/R(2010)10/VOL1
A joint workshop of the Working Group on the Analysis and Management of Accidents (WGAMA) and the Working Group on Risk Assessment (WGRISK) on implementation of severe accident management (SAM) measu...
Published date:
3 December 2010
NEA/CSNI/R(2010)10/VOL2
A joint workshop of the Working Group on the Analysis and Management of Accidents (WGAMA) and the Working Group on Risk Assessment (WGRISK) on implementation of severe accident management (SAM) measu...
Published date:
3 December 2010
The NEA Expert Group on Recovery Management (EGRM) held a meeting on 6 May 2021.
Published date:
7 May 2021
FACE project members met on 28-30 June 2023 in Paris, France.
Published date:
24 July 2023
NEA/CSNI/R(2021)9
This synthesis report summarises the technical programme and the outcome of the 2018 International Severe Accident Management Conference (ISAMC-2018) organised in Ottawa, Ontario on 15-18 October 201...
Published date:
11 December 2023
As the Fukushima Daiichi nuclear power plant (NPP) accident illustrates, many challenges have to be faced in maintaining safety over the long term in a damaged NPP following a severe accident. These ...
Published date:
29 April 2021
The NEA Working Group on Analysis and Management of Accidents (WGAMA) organised a specialist workshop entitled “Reactor core and containment cooling systems: Long-term management and reliability (RCC...
Published date:
29 October 2021
The project brings together seven NEA member countries.
Published date:
24 April 2025
Published date:
2 April 2025
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...
Published date:
2 October 2023
The NEA Expert Group on Fukushima Waste Management and Decommissioning R&D (EGFWMD) was established in 2014 to offer advice to the authorities in Japan on the management of large quantities of on-sit...
Published date:
2 December 2016
Project members met in Cadarache, France, on 1-3 April 2025.
Published date:
4 April 2025
Th projects addressed key technical challenges highlighted by the Fukushima Daiichi Nuclear Power Plant accident and have delivered critical insights into melt and debris coolability, fission product...
Published date:
28 April 2025
NEA News is the professional journal of the Nuclear Energy Agency (NEA). It features articles on the latest nuclear energy issues concerning the economic and technical aspects of nuclear energy, nucl...
Published date:
1 October 2020
NEA News is the professional journal of the Nuclear Energy Agency (NEA). It features articles on the latest nuclear energy issues concerning the economic and technical aspects of nuclear energy, nucl...
Published date:
15 July 2021
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...
Published date:
13 April 2023
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...
Published date:
18 October 1990
The THICKET-5 seminar was given by the Committee on the Safety of Nuclear Installations.
Published date:
2 June 2025
NEA/CSNI/R(2022)3
The NEA Specialist Workshop on Advanced Measurement Method and Instrumentation for Enhancing Severe Accident Management in a Nuclear Power Plant addressing Emergency, Stabilisation and Long-term Reco...
Published date:
15 April 2024
“Building a Framework for Post Nuclear Accident Recovery Preparedness: National-Level Guidance” report will will be presented and discussed at a web event on 23 May 2022
Published date:
14 March 2022
NEA Working Group on the Analysis and Management of Accidents (WGAMA) held its annual meeting, hosted by the CEA and atttended by nearly 90 delegates from 19 member countries, along with representati...
Published date:
30 September 2024
The EGFSF will work on harmonising post-accident food safety management approaches to build and maintain producer and retailer’s accountability and consumer trust.
Published date:
27 June 2022
Nuclear emergency planning, response and recovery
Published date:
30 November 2022
NEA/CSNI/R(2007)6
This report provides an overview of experimental facilities that can be used to address nuclear safety research issues in OECD member countries, and identifies priorities for organising international...
Published date:
1 January 2007
The NEA has undertaken a number of activities following the March 2011 accident at the Fukushima Daiichi nuclear power plant in Japan. This brochure contains three extracts from NEA News published in...
Published date:
27 June 2012