The sealing of a geological repository for radioactive waste must ensure a major containment function over a very long period. To enable its experts to assess the safety files drawn up by Andra (1) as part of the CIGÉO project (2) IRSN is conducting active research on this topic, as shown by the VSEAL project, carried out in its underground research laboratory in Tournemire (Aveyron).

A team of young researchers at the National Radiation Protection Institute in Prague uses state-of-the-art tools to measure and instantly visualise current radiological and meteorological data, making the results ready for interpretation in a matter of seconds.

GRS now offers an extended and revised version of its AC² code package which is used worldwide by supervisory authorities, expert organisations and universities as well as research centres to review the safety of nuclear power plants and other nuclear facilities. The updated version allows i. a. the better simulation of technical features of so-called SMRs (Small Modular Reactors). 

Under the Convention on Assistance in the Case of a Nuclear Accident or Radiological Emergency, IAEA Member States may request assistance by the Agency via its Response and Assistance Network (RANET).

Steam generator tubes in pressurised water reactors are exposed to high stresses such as high temperatures or large pressure differences. In combination with possible corrosive effects due to deposits in the outer area of the tubes, these stresses can at worst lead to leakages, which in turn could have an influence on operational safety. A team of researchers from GRS and the Materials Testing Institute of the University of Stuttgart has therefore conducted in-depth investigations into such leakages with the support of the Federal Ministry for the Environment and the Federal Ministry of Economic Affairs. The scientists have now developed a flow model with which the leakage rate of the escaping medium can be determined even more precisely than previously possible.

During the last weeks, I have observed the status of nuclear safety in Ukraine with regard to the Russian Federation’s continued attacks against Ukraine with great concern. I specifically reviewed the nuclear safety implications of the attacks against nuclear installations in Ukraine, which I strongly condemn. 

Concerning the situation in the Ukraine, some members of ETSON have published notes and reports.

The UK Nuclear Decommissioning Authority (NDA) believes that digital transformation is the future of its asset management. It aims to deliver savings of up £150m per annum through efficient data and information management.

VUJE in a consortium with other partners is implementing the Project: “D4.2 Dismantling of Reactor Coolant System Large Components” being a crucial part of V1 Nuclear Power Plant (two units with VVER– 440 reactors located in Jaslovské Bohunice site in Slovakia). In Cooperation with the company JAVYS, a material archive and a related database including all relevant information to specific material parts is created in order to LTO support of the operated units. 

Ensemble weather forecasts can be very useful in properly predicting the dispersion of radioactive material in an accident, but they are very expensive to use. We present a surrogate model approach that aims at recovering the information from the whole ensemble while trying to still be fast enough to be used in emergency situations.