Maintenance by divers of the reactor core instrumentation system: assessment, optimization and management of exposure to ionizing radiations
Description
Onet Technologies is at the forefront of all the technologies that come into play during the life cycles of nuclear and industrial plants. Drawing on forty years' experience in the field, Onet Technologies specializes in reactor engineering and maintenance, decommissioning and dismantling and nuclear waste treatment. At the sight of duct's deformations, AREVA and Onet Technologies divers teamed up in order to replace thermocouples conduits and thermocouples of RIC system. So as to keep ionizing radiation exposure to a minimum, the radiation protection unit has developed and implemented an optimization approach based on compliance with applicable regulations and contractual requirements. The latter is made up of three different phases: The ionizing radiation risk assessment, The radiation protection optimization, Management of ionizing radiation doses. All points listed above will be analyzed in detail in this study. (author)
Abstract (French)
Etudiant en Master IS-PRNT option Risques nucleaires, j'ai eu l'opportunite de realiser un apprentissage d'une duree de deux annees au sein de la societe Onet Technologies, specialisee dans la maintenance d'installation nucleaire. Face au constat de degradation des instruments de pilotage du coeur du reacteur de la centrale de PALUEL, AREVA et Onet Technologies se sont allies pour concevoir une operation de maintenance de ces instruments. Face aux enjeux dosimetriques forts, la cellule 2SR m'a mandate pour conduire les etudes radioprotection en phase de conception, gerer les expositions aux rayonnements ionisants en phase de realisation de l'intervention et de rediger le retour d'experience a l'issue de l'intervention. Toutes ces missions seront ainsi detaillees tout au long de ce memoire. (auteur)
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Additional details
Additional titles
- Original title (French)
- Maintenance du systeme d'instrumentation du coeur du reacteur par scaphandriers: evaluation, optimisation et gestion des expositions aux rayonnements ionisants
Publishing Information
- Imprint Pagination
- 51 p.
- Report number
- FRNC-TH--15990
INIS
- Country of Publication
- France
- Country of Input or Organization
- France
- INIS RN
- 55093583
- Subject category
- S61: RADIATION PROTECTION AND DOSIMETRY; S21: SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS;
- Resource subtype / Literary indicator
- Thesis
- Descriptors DEI
- BIOLOGICAL SHIELDING; CONTAMINATION; CONTRACTOR PERSONNEL; CONTROLLED AREAS; DIVING OPERATIONS; DOSE EQUIVALENTS; ELECTRICITE DE FRANCE; OCCUPATIONAL EXPOSURE; PALUEL-2 REACTOR; PERSONNEL DOSIMETRY; RADIATION DOSES; RADIATION PROTECTION; REACTOR CONTROL SYSTEMS; REACTOR MAINTENANCE; REMOTE HANDLING EQUIPMENT; THERMOCOUPLES
- Descriptors DEC
- CONTROL SYSTEMS; DOSES; DOSIMETRY; ENRICHED URANIUM REACTORS; EQUIPMENT; FRENCH ORGANIZATIONS; MAINTENANCE; MATERIALS HANDLING EQUIPMENT; MEASURING INSTRUMENTS; NATIONAL ORGANIZATIONS; OPERATION; PERSONNEL; POWER REACTORS; PWR TYPE REACTORS; REACTOR LIFE CYCLE; REACTOR OPERATION; REACTORS; SHIELDING; THERMAL REACTORS; UNDERWATER OPERATIONS; WATER COOLED REACTORS; WATER MODERATED REACTORS
Optional Information
- Notes
- 16 refs.; Available from the INIS Liaison Officer for France, see the INIS website for current contact and E-mail addresses