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    STP1398

    Comparative Analysis of DPA Processed from Current Evaluated Nuclear Data Libraries

    Published: 0


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    Abstract

    Recent pressure vessel surveillance reports contain DPA rates as an exposure parameter. In order to assess the reliability of the DPA data, it is useful to inter-compare available DPA data processed from current evaluated nuclear data libraries. We generated the damage energy production cross sections for elements in a RPV of a PWR and a core barrel of a LMR, with NJOY 97 code system from the currently available evaluated nuclear data libraries, ENDF/B-VI.5, JEF-2.2, JENDL-3.2, BROND-2.2, and CENDL-2.1. The DPA rates using the neutron spectra from the surveillance test of Korean PWR Ulchin Unit 1 and the design of KALIMER LMR were inter-compared. The results show a maximum relative difference of 22% for carbon steel in a PWR. The effect of partial damage cross sections such as elastic scattering, inelastic scattering and disappearance reaction has been analyzed as well as status of iron, chrome and nickel.

    Keywords:

    DPA, evaluated nuclear data libraries, NJOY, iron, nickel, chrome


    Author Information:

    Chang, J
    Korea Atomic Energy Research Institute, Taejon,

    Gil, C-S
    Korea Atomic Energy Research Institute, Taejon,

    Cho, YS
    Korea Atomic Energy Research Institute, Taejon,

    Kim, J-D
    Korea Atomic Energy Research Institute, Taejon,


    Committee/Subcommittee: E10.08

    DOI: 10.1520/STP13645S