Development of a Magnetic Diagnostic Suitable for the ITER Radiation Environment

P Morreau, I Bolshova, Benoît Brichard, , Marc Schyns

    Research outputpeer-review


    Magnetic diagnostics of the ITER tokamak must fulfill demanding specifications, because their accuracy and reliability affects margins to the machine engineering limits and therefore operational flexibility. This paper describes the challenging issues related to the implementation of the magnetic diagnostics in a tokamak environment. We focus on nuclear radiations as they can significantly affect the measurement through Radiation Induced Electromotive Force (RIEMF) or Thermally Induced Electromotive Force (TIEMF). Thermal modeling of magnetic sensors and associated design studies are also reported as the thermal gradient in the sensors must be reduced to avoid TIEMF. Alternative magnetic sensors such as fiber optic current sensors (FOCS) or steady state magnetic field sensors are also discussed because they serve as a backup to the usual inductive magnetic measurements. We conclude by a brief review of the development needs for magnetic diagnostics
    Original languageEnglish
    Title of host publicationANIMMA International Conference
    Place of PublicationFrance
    StatePublished - 11 Jun 2009
    Event2009 - ANIMMA - Advancements in Nuclear Instrumentation Measurement Methods and their Applications: International Conference on Advancements in Nuclear Instrumentation, Measurement Methods and their Applications - CEA, Marseille
    Duration: 7 Jun 200911 Jun 2009


    Conference2009 - ANIMMA - Advancements in Nuclear Instrumentation Measurement Methods and their Applications

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