The NEA Rod Bundle Heat Transfer (RBHT) project focused on reflood thermal hydraulics. The project generated new and unique reflood experimental data and provided these data to the participants, who ...

DOI: 10.1787/cd079210-en

This report further explores some of the key elements presented in The Safety Culture of an Effective Regulatory Body (2016), commonly known as the NEA Green Booklet, and pro...

10.1787/0df32944-en

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 neede...

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...

TCOFF-2 is the second phase of the NEA joint project Thermodynamic Characterisation of Fuel Debris and Fission Products Based on Scenario Analysis of Severe Accident Progression running until 2026.

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 ...

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...

Project members met in France and online to discuss the ongoing and future activities.

Project members discussed the results and the second phase foreseen to start in 2026.

Project members met in Cadarache, France, on 1-3 April 2025.