ASNR’s nuclear activities in the territory As explained in chapter 2 of the full ASNR Report, ASNR is authorised to carry out nuclear activities, excluding those subject to the BNI regime, in accordance with Article L. 592-14-1 of the Environment Code. ASNR operates the following facilities on the Cadarache site for research and expert assessment purposes. In terms of radiation protection, their activities are governed by the provisions of the Public Health Code: • the MICADO-Lab platform (chronic irradiation means for the acquisition of dose-effect relationships in the laboratory), dedicated to the study of the effects of chronic exposure to ionising radiation on ecosystems; • the STIRCA platform, comprising the AMANDE-MIRCOM and CEZANE facilities, designed to produce neutrons for metrology and dosimetry, and in particular to provide national references for neutron fluence and derived dosimetric quantities in association with the National Metrology and Testing Laboratory (LNE); • the Lear and Epicur facilities, contributing to research and development programmes in the field of major accidents, in particular on the behaviour of iodine, ruthenium and filter media, and on the ageing of reactor containment materials; • specific equipment at the CEA’s Cabri BNI, for experimental research into the behaviour of nuclear fuels in accident situations, in particular by characterising the degradation of fuel rods. In 2025, ASNR conducted three internal inspections of radiation protection arrangements at the above-mentioned facilities, more specifically at the AMANDE-MIRCOM, CEZANE and MICADO-Lab platforms. It appears that radiation protection issues are being addressed in an appropriate and controlled manner by the facilities. Particular attention continues to be paid to formalising the elements used to document operating conditions, notably through examining the implementation of additional protection measures at the facilities in application of certain standards, the justification of radiation protection zoning, the monitoring of releases and the management of sources and waste. Provence-Alpes-Côte d’Azur ASNR actions to prevent radon risk Oversight actions An inspection was carried out on 18 December 2025 at the Château de Saint Martin winery, which is located in a level 3 radon zone and has an underground cellar (specific location). The radon risk was unknown to the establishment before the inspection was announced. Awareness-raising actions In 2025, ASNR held discussions with the Regional Health Agency and the Regional Department of Employment, Economy, Labour and Solidarity (Dreets) for the ProvenceAlpes-Côte d’Azur region, on regulatory changes to the Labour Code relating to radon risk. Areas with radon potential in mainland France, and particularly in the Provence-Alpes-Côte d’Azur region, are shown on page 99. 86 Rn radon ABSTRACTS – ASNR Report on the state of nuclear safety and radiation protection in France in 2025 97
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