Crisis and post-accident
As part of its contribution to managing nuclear risks and their consequences on people and the environment, IRSN provides its support to the public authorities in situations of radiological or nuclear emergency. As part of this mission, it takes part in the monitoring and warning system in the event of an incident or accident involving sources of ionising radiation, activates its technical crisis centre (CTC), centralises the results of measurements made in the environment, and dispatches its mobile resources on site. In parallel, it proposes to the safety authorities measures aimed at ensuring the protection of the population, workers and the environment, and at re-establishing the safety of facilities.
For this, the Institute possesses crisis organisation that can be activated around-the-clock in less than one hour and which is capable of mobilising, in every field concerned by an emergency situation, a coordinated team of 400 experts in the CTC, based on the site at Fontenay-aux-Roses (Hauts-de-Seine) and equipped with a communication cell. The members of the crisis team convene there to analyse in real time the information transmitted by the nuclear facility operators, by Météo France and by the Téléray network (which conducts real-time measurement of the radioactivity in the air), to establish a diagnostic of the situation and a forecast of its development, and to assess the discharges and the consequences for people and the environment. The CTC coordinates a mobile cell which is responsible, on the ground, for taking measurements in the environment and on people, and coordinates the fixed laboratories of the Institute, the remote monitoring network support, and the dispatching of representatives to the Prefect concerned and the interministerial crisis cell (CIC – Cellule Interministérielle de Crise).
IRSN takes part every year in national crisis exercises, to which it contributes the preparation of scenarios, and in international exercises, particularly for the IAEA, as well as in-house exercises on topics such as acts of malice.