RÉSUMÉLa division production nucléaire (
ABSTRACT Radiation protection and inspection of industrial radiography.The EDF nuclear power division (NPD) conducts a substantial number of industrial γ-ray inspections: about 40.000 inspections are conducted annually on the nuclear fleet. Point sources of iridium-192 are generally used. In normal configurations, the activity of these sources can go up to 4.4 TBq (120 Ci), inducing -at a range of 1 meter -such a high dose equivalent rate that the value of 20 mSv is reached in a little more than 2 minutes. To date, no exceeding of the regulatory limit has been observed within EDF, but during the observation of events, a practice that has been in effect for many years, "low-level events", such as unplanned exposures lower than the regulatory limits, were noted. NPD management thus decided to take particular actions in the field. An analysis of unplanned exposures was carried out.
Feedback experience from incidents and its use. ABSTRACTThis working group aimed at listing and, if possible, improving feedback experience from incidents in the field of gamma radiography. The documents produced by the group may be used to enrich the content of training courses addressed to operators or health physicists from gamma radiography firms. The participants analysed different bibliographical sources where incidents/accidents were presented: the incident databases named IRID and RELIR were particularly studied. It was then identified that the existing feedback experience was not representative from the events occurring today in France. New types of incidents (no mastery of the demarked area, source stuck due to foreign bodies in the guide tube) were thus identified from which new RELIR publications were established. In parallel,
Présentation Le groupe de travail sur la sécurité des contrôles radiographiques industriels Les contrôles non destructifs (CND) sont mis en oeuvre dans pratiquement tous les domaines de l'industrie (pétrole, nucléaire, aéronautique, etc.). Ils constituent un élément clé de la sécurité et de la sûreté des installations, soit qu'il s'agisse de justifier de la qualité d'une installation neuve, soit de sa tenue dans le temps aux contraintes d'exploitation. Les contrôles non destructifs utilisent différentes techniques, les plus utilisées étant les ultrasons, les courants de Foucault, et la radiographie industrielle. C'est cette dernière technique qui a motivé le travail présenté dans ce numéro spécial de notre revue. Le travail réalisé dans le cadre de ce groupe initié par la Section de protection technique de la SFRP, auquel se sont joints dès sa création les professionnels de
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