publications by Joseph A. Izatt.


Papers Published

  1. Izatt, J.A. and Scobie, J., A programme to reduce down-time and site radiation dose through improvements in control rod design, Nucl. Energy (UK), vol. 24 no. 3 (1985), pp. 187 - 91 .
    (last updated on 2007/04/13)

    Abstract:
    In many nuclear facilities a high proportion of the total radiation dose to staff may be ascribed to just one or a few routine operations. Often this critical operation will require significant shutdown time, both to perform the function itself and to allow sufficient decay time to reduce radiation levels to acceptable values. In these circumstances a careful re-assessment of the design of particular items of plant or of modes of operation may lead to substantial improvements in availability and radiation safety. A good examples of this situation arises on the UTR-300 reactor at SURRC, where it has been found necessary to carry out preventive or remedial maintenance at least once per year on the in-core elements of the control rod assemblies. This had led to reduced availability of the reactor and to significant overall radiation doses to the few long-serving staff members who carry out this work. In an attempt to reduce down-time and radiation dose to staff a radical re-design of the control assemblies was undertaken in-house, and a conversion programme has been underway over the last four years. Details of the design improvements are presented together with a discussion of the operating experience to date

    Keywords:
    dosimetry;fission reactor core control and monitoring;fission reactor safety;fission reactor theory and design;