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GRS experts develop computational code that can be used to simulate muon radiographic images in order to test the suitability of the method for examining storage casks for spent fuel assemblies
On this page you will find the corporate governance reports of the last five years.
As of today (20 January 2022), the operator EDF has taken five of its reactor units off the grid due to cracks in the weld seams in the safety injection systems. According to statements by the French expert organisation IRSN, it cannot be ruled out at present that these crack indications are a generic problem that could also affect other plants. The following article provides an overview of the current state of knowledge. It is based on information from the French supervisory authority ASN, the operator EDF, and our French partner IRSN, with whom we maintain a close technical exchange via the European network ETSON.
K.-P. Kröhn, M. Kröhn
M. Navarro
Coordinated by the Nuclear Energy Agency of the Organisation for Economic Co-operation and Development (OECD/NEA), a new international research project has been launched to examine further the accident sequences at Fukushima Daiichi. Together with 21 institutions from 11 countries, Germany - represented by GRS - will also participate in the project "Analysis of Information from Reactor Buildings and Containment Vessels of Fukushima Daiichi NPS" (ARC-F). The three-year project is led by the Japan Atomic Energy Agency (JAEA).
ETSON is the network of technical safety organisations (TSOs) in Europe. The TSO of a country supports the national licensing and supervisory authorities in all scientific and technical questions concerning nuclear safety.
In 2011, the most severe nuclear accident since Chernobyl occurred at the Fukushima Daiichi nuclear power plant site in Japan. The accident was classified at the highest level of the International Nuclear Event Scale (INES).
Our GRS colleague Dr Michael Maqua has been performing the function of INES Officer for Germany on behalf of the Federal Ministry for the Environment for more than 13 years. INES stands for "International Nuclear and radiological Event Scale", a scale for the classification of nuclear events and accidents. The trained engineer followed the events around the nuclear accident at Fukushima from the GRS emergency centre. In this interview, he answers our questions about how he remembers this time.
On 10 February 2022, French President Emmanuel Macron explained to the public how he envisages France's energy supply for the next decades. In addition to large-scale new construction projects for offshore wind farms, the expansion of nuclear power in particular is intended to cover the electricity demand that will arise by 2050: Six new types of EPR2 reactors are to be built, and the construction of eight more is to be examined. In addition, the development of a so-called Small Modular Reactor and the long-term operation of older nuclear power plants are planned. What the new reactor types and long-term operation mean from a technical (safety) perspective is outlined below.