Loop for 4 light water fuel pins irradiated at the OSIRIS reactor. Development of techniques for dosimetry
Description
The ISABELLE 4 loop is designed for experimental irradiation of 4 LWR fuel pencils under thermohydraulic power reactors conditions. The loop is operated in OSIRIS (70 MW) test reactor reflector at Saclay. Present studies cover pellet-clad interaction (PCI). Each pencil can be removed, tested (NDT) and reloaded in OSIRIS pool. The fuel dosimetry technique has been developped in the ISIS reactor (OSIRIS neutronic model): enrichments determination allowing equivalent power from front and back bundle; simultaneous irradiation of removable fuel pencils in SPND equipped ISABELLE mock-up, and of UO2 powder in a standard neutron field (thermal column); power measurement by means of relative liquid sources counting; loop monitoring with Self Powered Neutron Detectors
Availability note (English)
MF available from INIS under the Report Number.Abstract (French)
La boucle ISABELLE 4 permet l'irradiation de 4 crayons combustibles aux conditions thermohydrauliques des reacteurs a eau, dans le reflecteur du reacteur OSIRIS (70 MW) de Saclay. Les experiences actuelles couvrent notamment l'interaction pastille-gaine (sauts de puissance, ...). Chaque crayon peut etre defourne et examine (C.N.D.) dans la piscine d'OSIRIS. On presente la technique de dosimetrie combustible developpee dans le reacteur ISIS (maquette d'OSIRIS): calcul des enrichissements pour une puissance identique a l'avant et a l'arriere de la grappe; irradiation simultanee de crayons combustibles demontables en maquette instrumentee en collectrons, et de poudre UO2 en colonne thermique (reference); mesure de puissance par comptage relatif de sources liquides; pilotage de la boucle par collectronsFiles
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Additional details
Additional titles
- Original title (French)
- Boucle 4 crayons combustibles eau legere irradiee en peripherie du reacteur OSIRIS. Techniques de dosimetrie mises en oeuvre
Publishing Information
- Imprint Pagination
- 7 p.
- Report number
- CEA-CONF--7404
Conference
- Title
- 5. ASTM-Euratom symposium on reactor dosimetry.
- Dates
- 24-28 Sep 1984.
- Place
- Geesthacht (Germany, F.R.).
INIS
- Country of Publication
- France
- Country of Input or Organization
- France
- INIS RN
- 16035066
- Subject category
- S21: SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS;
- Resource subtype / Literary indicator
- Conference
- Descriptors DEI
- DOSIMETRY; FUEL PINS; FUEL-CLADDING INTERACTIONS; IN PILE LOOPS; PWR TYPE REACTORS; RADIATION DOSES; SPENT FUEL ELEMENTS
- Descriptors DEC
- ENRICHED URANIUM REACTORS; FUEL ELEMENTS; POWER REACTORS; REACTOR COMPONENTS; REACTOR EXPERIMENTAL FACILITIE; REACTORS; THERMAL REACTORS; WATER COOLED REACTORS; WATER MODERATED REACTORS