Fibre optics for metrology in nuclear research reactors Applications to dimensional measurements

G Cheymol, Benoît Brichard, JF Villard, Marco Van Uffelen

    Research outputpeer-review


    In-situ measurement is a key issue for advanced irradiation programs in nuclear research reactors, especially in Material Testing Reactors (MTR). In that prospect, Optical Fibre Sensors (OFS) can feature unique intrinsic properties that bring substantial advantages over conventional sensing approaches. One of the objectives of the Joint Instrumentation Laboratory (JIL), gathering SCKCEN (Belgium) and CEA (France) resources and know-how, is to develop Optical Fibre Sensors (OFS) for metrology under high radiation. A preliminary condition to the development of OFS is to ensure that the Radiation Induced Absorption (RIA) of the light in the fibre does not exceed a pre-defined threshold. We report the results of a long lasting irradiation experiment, at higher dose than previously reported: up to a fast neutron fluence of 1020 n/cm2 and an ionising dose of 16 GGy, carried out on various fibres, including hollow core photonic band gap (PBG) fibres, singlemode (SM) and multimode (MM) fibres.
    Original languageEnglish
    Title of host publicationANIMMA International Conference
    Place of PublicationFrance
    StatePublished - 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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