255 ASN report on the state of nuclear safety and radiation protection in France in 2017 Chapter 08 - Regional overview of nuclear safety and radiation protection Pays de la Loire The Nantes division regulates nuclear safety, radiation protection and the transport of radioactive substances in the 5 départements of the Pays de la Loire region. I n 2017, ASN carried out 34 inspections, of which 32 were in small-scale nuclear activities and 2 in the transport of radioactive substances. Among the notified events, none was rated level 1 or higher on the INES scale and 7 events in radiotherapy were rated level 1 on the ASN-SFRO scale and one was rated level 1+ (cohort of patients). The installations and activities to regulate comprise: ཛྷ ཛྷ the Ionisos irradiator in Sablé-sur-Sarthe; ཛྷ ཛྷ the Ionisos irradiator in Pouzauges; ཛྷ ཛྷ the facilities and activities using ionising radiation in the medical, industrial and research sectors: -- medical services: 6 external- beam radiotherapy departments, 4 brachytherapy units, 11 nuclear medicine departments, 40 centres performing fluoroscopy-guided interventional procedures, 52 computed tomography scanners, about 2,500 medical and dental radiology devices; -- industrial and research uses: one cyclotron, 34 industrial radiography companies, including 7 gamma radiography contractors, about 400 licences for industrial and research equipment, including 220 users of devices to detect lead in paint; -- 5 radiation protection technical control agencies, one radon screening agency and one head office of laboratories approved for taking environmental radioactivity measurements. 1. Assessment by domain 1.1 The nuclear installations Industrial irradiators operated by the company Ionisos ASN considers that the Ionisos irradiators in the Pays de la Loire region are operated with due attention to nuclear safety and radiation protection. ASN continued the examination of the periodic safety review of the Sablé-sur-Sarthe irradiator in 2017. ASN asked IRSN for an analysis and expert assessment of this file, asking it to examine more particularly the relevance of the licensee’s proposed action plan and the corresponding implementation schedule. This periodic safety review is also used to study the additional measures to be put in place concerning accesses to the irradiation cell, further to the incident of June 2009 involving the untimely opening of the irradiation cell access door on the Pouzauges site. In 2017, ASN authorised the extension of the handling hall of the Sablé-sur-Sarthe facility and the renovation of its fire safety and remote alarms transmission system. ASN also authorised the renovation of the Pouzauges facility’s fire detection and extinguishing system. Ionisos submitted the first periodic safety review of the Pouzauges site in 2017. ASN had asked the licensee to integrate the lessons learned from the safety review of the Sablé-sur- Sarthe site. ASN will examine this file in 2018.