Volume 9, Issue 4 (April 2012)

    Dosimetry Assessments for the Reactor Pressure Vessel and Core Barrel in UK Pressurized Water Reactor (PWR) Plant

    (Received 20 May 2011; accepted 14 December 2011)

    Published Online: 2012

    CODEN: JAIOAD

      Format Pages Price  
    PDF Version 14 $25   ADD TO CART


    Abstract

    Specimens for the Sizewell B reactor pressure vessel (RPV) in-service steels surveillance program are irradiated inside eight capsules located within the reactor pressure vessel and loaded prior to commissioning. The periodic removal of these capsules and testing of their contents provides material properties data at intervals during the lifetime of the plant. Neutron activation measurements and radiation transport calculations play an essential role in assessing the neutron exposure of the specimens and RPV. Following the most recent withdrawal, seven capsules have now been removed covering nine cycles of reactor operation. This paper summarizes the dosimetry results of the Sizewell B surveillance program obtained to date. In addition to an overview of the calculational methodology it includes a review of the measurements. Finally, it describes an extension of the methodology to provide dosimetry recommendations for the core barrel and briefly discusses the results that were obtained.


    Author Information:

    Thornton, D. A.
    Serco, Rutherford House, Quedgeley, Gloucester, Gl2 4NF,

    Allen, D. A.
    Serco, Rutherford House, Quedgeley, Gloucester, Gl2 4NF,

    Huggon, A. P.
    Serco, Rutherford House, Quedgeley, Gloucester, Gl2 4NF,

    Picton, D. J.
    Serco, Rutherford House, Quedgeley, Gloucester, Gl2 4NF,

    Robinson, A. T.
    Serco, Rutherford House, Quedgeley, Gloucester, Gl2 4NF,

    Steadman, R. J.
    Serco, Rutherford House, Quedgeley, Gloucester, Gl2 4NF,

    Serén, T.
    VTT, Technical Research Centre of Finland, Otakaari 3 K, Espoo, P.O. BOX 1000,

    Lipponen, M.
    VTT, Technical Research Centre of Finland, Otakaari 3 K, Espoo, P.O. BOX 1000,

    Kekki, T.
    VTT, Technical Research Centre of Finland, Otakaari 3 K, Espoo, P.O. BOX 1000,


    Stock #: JAI104016

    ISSN: 1546-962X

    DOI: 10.1520/JAI104016

    ASTM International is a member of CrossRef.

    Author
    Title Dosimetry Assessments for the Reactor Pressure Vessel and Core Barrel in UK Pressurized Water Reactor (PWR) Plant
    Symposium , 0000-00-00
    Committee E08