OSIRIS REACTOR - Centre de Cadarache - CEA

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18EXPERIMENTAL DEVICESCEA••• NUCLEAR ENERGY AUTHORITYEXPERIMENTALDEVICES20 ••• CHOUCA21 ••• IRMA22 ••• PHAETON23 ••• GRIFFONOS24 ••• ISABELLE loops26 ••• TANOXOS26 ••• IRIS27 ••• BARITON27 ••• Instrumentation of the devices27 ••• Qualification of the instrumentation
EXPERIMENTAL DEVICESNUCLEAR ENERGY AUTHORITY ••• CEA19Technological irradiations carried out in experimental reactors are used on the one hand to meet the industrial needsof the present fleet of power stations as well as for the developement and support to that fleet, and on the other handto meet the needs of new types of reactors satisfying the broad objectives of sustainable development and reconcilingreliability, economy, safety and ecology. One of the principal advantages of experimental reactors is to be able to carry outexperiments up to limits that could not be achieved in a power reactor since instrumented irradiation can be produced byadjusting experimental parameters such as temperature and neutron flux.The issues at stakePreparing an experimental device.The industrial stakes in the short and medium term consistin ensuring the operation of the current installed base andimproving its performance characteristics. In the longer term,the stake lies in the development of new types of reactors.OPERATION OF THE CURRENT INSTALLEDBASETo ensure the operation of the installed base of reactorsand to improve their competitiveness under optimum conditions,the industry must:• optimise the performance characteristics of fuels and theirconsumption,• evaluate the increase in the service life of power stations,• anticipate the requests from the safety authorities.IssuesOptimisationof fuel performancecharacteristicsRequirements in research and development programmes (R&D)• Behaviour of fuels during power transients• Behaviour of fuels with high burnup rates: core temperature, clad deformation,fission gases release, densification, clad corrosion• Qualification and characterization of new fuels• Development of clad alloys optimised in relation to the mechanical behaviourand corrosion resistanceIncrease theservice life ofpower stations• Behaviour of the assembly and internal structures:corrosion, growth, creep kinetics• Behaviour of vessel materials and internal assemblies for lengthened operations:changes in the mechanical properties of vessel steels, corrosion resistanceSafety• Reaction of fuels in incidental situation• Behaviour of materials in specific areas (welding etc.)
Page 3 and 4: CONTENTS04•••THE OSIRISREACTO
Page 7: OT 102 - Winter 2003 - Bethel Semin
Page 11 and 12: THE OSIRIS REACTORNUCLEAR ENERGY AU
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Page 15 and 16: IRRADIATION POSITIONS AND EXPERIMEN
Page 20 and 21: 20EXPERIMENTAL DEVICESCEA•••
Page 30 and 31: 30MORE ABOUT IRRADIATIONCEA••
Page 36 and 37: 36THE HOT LABS ASSOCIATED TO OSIRIS
Page 38: 38THE HOT LABS ASSOCIATED TO OSIRIS
Page 41 and 42: IRRADIATION FOR INDUSTRYNUCLEAR ENE
Page 43 and 44: IRRADIATION WITH OSIRISNUCLEAR ENER

OSIRIS REACTOR - Centre de Cadarache - CEA

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