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OECD Nuclear Energy Agency

Experience from past nuclear and radiological accidents has shown that the consequences of a radiological emergency can be profound and long lasting, affecting public health, the environment, food systems, infrastructure and social trust. Recognising this, the Committee on Radiological Protection and Public Health (CRPPH) Expert Group on Recovery Management (EGRM), in its report “Building a Framework for Post Nuclear Accident Recovery Preparedness, National Level Guidance,” emphasised the need for countries to establish dedicated recovery frameworks that extend beyond initial emergency response plans, and expressed the lack of international exercises covering recovery. This upcoming workshop, organized by the NEA and hosted by the Autorité de Sûreté Nucléaire et de Radioprotection (ASNR), will present key outcomes and lessons learned from the INEX-6 evaluation and define concrete next steps to strengthen both national and international recovery preparedness.

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OECD Nuclear Energy Agency

This 5-day training course will be taught in English by a member of the SCALE development team from Oak Ridge National Laboratory (ORNL) in collaboration with a NEA highly-experienced Senior Scientist, former SCALE/ORIGEN training instructor at ORNL.

Kurse in Kerntechnik,    Kernphysik

OECD Nuclear Energy Agency

The NEA is organising a workshop on initial estimation of back-end costs for small modular reactors (SMRs) and Generation IV technologies. This topic has gained significant attention within both the Committee for Decommissioning and Legacy Management (CDLM) and Radioactive Waste Management Committee (RWMC), reflecting a growing interest from NEA Member Countries. The CDLM Expert Group on Costing for Decommissioning of Nuclear Installations and Legacy Management (EGCDL) is responsible for the organisation of the event.

OECD Nuclear Energy Agency

The Expert Group on SMRs (EGSMR) of the Committee on the Safety of Nuclear Installations (CSNI) addresses safety challenges and develops a scientific basis which supports safety demonstration of the advanced and innovative methodologies and technologies used for SMRs. In a comprehensive report published in 2023, the EGSMR identified SMR safety related gaps of knowledge, cross cutting safety issues and provided recommendations for co-operative activities. Since then, the CSNI, through its working groups and joint undertakings, has launched several activities to make progress on the safety assessment of SMRs. More generally, cross cutting safety topics have recently been investigated deeper through national and multilateral initiatives. These include the reliability of passive systems, transportability, application of defense-in-depth principle for innovative designs, remote/autonomous operation, multi-unit/module probabilistic safety assessment, human and organizational factors, emergency planning zones, fuel safety and more.

OECD Nuclear Energy Agency

The course main objective is to provide a basis for fundamental concepts of numerical evaluation of analytical solutions to a variety of neutron transport equations.

OECD Nuclear Energy Agency

The NJOY Nuclear Data Processing System is a modular computer software package designed to read evaluated data in the Evaluated Nuclear Data File (ENDF) format, transform the data in various ways and output the results as libraries designed to be used in various applications.

Kernphysik,    Wissenschaftliches Rechnen und Datenwissenschaft

OECD Nuclear Energy Agency, Division of Nuclear Law

The 2026 International Nuclear Law Essentials (INLE) programme will be conducted under the leadership of Paul Bowden, Honorary Professor of Law at the Nottingham Law School. Comprehensive lectures will be delivered by renowned specialists in nuclear law from international organisations, governments and the private sector.

OECD Nuclear Energy Agency, Division of Nuclear Law

Under the guidance of the NEA Nuclear Science Committee (NSC), the Working Party on Scientific Issues and Uncertainty Analysis of Reactor Systems (WPRS) studies the reactor physics, fuel performance, and radiation transport and shielding in present and future nuclear power systems. The working party also studies the uncertainties associated with the modelling of these phenomena, particularly the modelling of reactor transient events.

OECD Nuclear Energy Agency (NEA), in collaboration with the European project EASI-SMR

The OECD Nuclear Energy Agency (NEA), in collaboration with the European project EASI-SMR, is pleased to announce the International Workshop on Passive Systems Performance and Reliability, to be held in Paris, France, from 30 March to 1 April 2026. This workshop is organised under the auspices of the NEA Committee on the Safety of Nuclear Installations (CSNI), by its Working Group on Risk Assessment (WGRISK) and Working Group on Analysis and Management of Accidents (WGAMA), in collaboration with the EASI-SMR project, co-funded by the Euratom Research and Training Programme.

Passive safety systems are central to the safety concepts of many advanced reactor designs, including Small modular reactors (SMRs) and micro-reactors. Despite their widespread use, consensus is lacking regarding modelling approaches, reliability assessment, and crediting methods in safety analyses. This workshop builds on the 2024 NEA Status Report on Reliability of Thermal-Hydraulic Passive Systems and supports the goals of the Ensuring Assessment of Safety Innovations for SMR (EASI-SMR project), which addresses key safety challenges in light-water SMRs through a structured R&D framework.

With the current global focus on climate change and the energy crisis, nuclear energy is playing an increasingly important role in achieving deep decarbonization. This was recognized at COP28 in Dubai (2023), where nuclear energy was identified as a major low-emission technology. As of 2024, there are approximately 60 nuclear reactors under construction worldwide and around 110 additional planned reactors, most of which are based on traditional water-cooled technologies. Furthermore, new reactor types such as Small Modular Reactors (SMR) and Advanced Modular Reactors (AMR) are gaining traction, demanding innovations in ground and civil structures.

TINCE’26 will focus on the interplay between design and construction, an evolving area that leverages advances in interoperability between BIM and structural calculations. The development of environmentally friendly materials with lower carbon emissions is a key priority. Additionally, the conference will address long-term operational challenges, like structural health monitoring and the development of tools for managing aging effects in nuclear facilities. These include new sensing techniques, non-destructive testing methods, and digital twins to assess and predict asset conditions.