LES ACTIVITÉS NUCLÉAIRES : RAYONNEMENTS IONISANTS ET RISQUES POUR LA SANTÉ ET L’ENVIRONNEMENT ASNR points out the obligation for all gamma ray projector users to obey the instructions applicable in the event of a situation of “source jamming” outside the projector, which consists during the emergency phase in immediately stopping any handling of the projector or its accessories, rapidly cordoning off the area to avoid any further exposure to ionising radiation and contacting the device supplier for assistance. Penal enforcement actions have already been proposed for serious breaches, and will continue to be so. The companies must moreover make every effort to ensure that their operators have the applicable safety instructions and the necessary means to respond should “source jamming” or any other anomaly occur (deviation found in one in five inspections in 2025). 2. A description of the event can be found in the 2024 edition of this annual report, which is available on regulation-oversight.asnr.fr, under the headings “Infomation”, “Publications”, “ASNR’s annual reports”. Furthermore, when performing operations in worksite conditions, the outside contractors and their ordering customers must, during the preparation phase, check that any such incident would not produce serious consequences outside the worksite, as was the case with the event that occurred in Colmar in April 2024(2). ASNR remains particularly attentive to the management of “source jamming” events. The need to plan for an emergency organisation for managing such events was moreover recalled in the above-mentioned circular letter. GRAPH 8 Trend in the number of industrial radiography events reported to ASNR for the period 2016-2025 0 5 10 15 20 25 2025 2024 2023 2022 2021 2020 2019 2018 2017 2016 2 5 11 8 15 9 16 10 10 8 23 15 11 13 17 10 17 19 7 19 In BNIs Outside BNIs GRAPH 9 Main factors leading to the reporting of significant industrial radiography events to ASNR over the 2022-2024 period 0 5 10 15 20 25 30 22 27 8 23 8 2 Loss of source control Marking out Damage to the appliance Abnormal exposure of workers Others Number of licensees 250 ASNR Report on the state of nuclear safety and radiation protection in France in 2025
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