Article

Information system for monitoring occupational exposure to ionizing radiation (SISERI) in France

Division of Health Research and Expertise, Nuclear Safety and Radiation Protection Authority (ASNR), 31 Avenue de la Division Leclerc, 92260 Fontenay-aux-Roses, France

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Received: 16 April 2025
Accepted: 19 August 2025

Abstract

A comprehensive analysis of the Information System for Monitoring Exposure to Ionizing Radiation (SISERI) in France is presented, focusing on its origin, its evolution, regulatory framework, and recent developments in occupational radiation exposure. Established in 2005, SISERI has undergone significant transformations, including a redesign in 2023 aimed at enhancing data accuracy and accessibility. The study analyzes trends in occupational exposure from 2015 to 2023 across various sectors, including medical, nuclear, and natural radiation exposure. Results reveal fluctuations in the number of monitored workers and average annual doses, reflecting changes in workplace practices and external factors such as the COVID-19 pandemic. Some cases of exceeding regulatory dose limits of 20 mSv/year should be mentioned, mainly in the medical field. Moreover, French dosimetry data are compared to European (ESOREX) and international (UNSCEAR), noting the harmonization efforts through ISO 24426 to improve data comparability. Despite the challenges associated with transitioning to unified methods, SISERI’s data collection aligns with these standards, positioning France as a significant contributor to international radiation protection efforts. Overall, the study underscores the importance of robust monitoring systems in ensuring the safety and health of radiation workers. Radiation protection practices for workers will adapt/evolve in the coming years, especially with emerging technologies in medical applications and the challenges posed by aging nuclear facilities.