Volume 5, Issue 4 (April 2008)

    Track Detector Measurements in RPV of WWER-1000 Mock-Up in the LR-0 Reactor

    (Received 20 June 2005; accepted 14 January 2008)

    Published Online: 2008

    CODEN: JAIOAD

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    Abstract

    The fission rates measurements were carried out with track detectors in the WWER-1000 mock-up assembled in the experimental reactor LR-0.

    The 238U and 236U isotopes with the fission energy thresholds approximately 1.5 MeV and 0.8 MeV, respectively, were used. The tracks were counted by means of a photomicroscope with a digital camera controlled by a PC with corresponding software. The fission rate ratio of 236U and 238U has been evaluated in different measuring points as well as the fast neutron fluxes attenuation factors. The correction for photo fission has been included. The results obtained with different techniques were compared: the fast flux above 0.5 MeV was measured absolutely with a stilbene detector.


    Author Information:

    Ošmera, B.
    Senior Staff Scientists, Nuclear Research Institute, Řež,

    Pošta, S.
    Senior Staff Scientists, Nuclear Research Institute, Řež,

    Karpunin, N. I.
    Head of Department and Leading Research Scientist, SEC ROSTECHNADZOR, Moscow,

    Lomakin, S. S.
    Head of Department and Leading Research Scientist, SEC ROSTECHNADZOR, Moscow,


    Stock #: JAI100372

    ISSN: 1546-962X

    DOI: 10.1520/JAI100372

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    Author
    Title Track Detector Measurements in RPV of WWER-1000 Mock-Up in the LR-0 Reactor
    Symposium Reactor Dosimetry, 2005-05-13
    Committee E10