Nuclear Research Emulsion Measurements and the Observation of Proportional Counter Perturbation Factors in VENUS-1

R. Gold, C. C. Preston, J. H. Roberts, G. DeLeeuw, A. Fabry, L. Leenders

    Research outputpeer-review

    Abstract

    Nuclear research emulsion (NRE) observed/-integral and J-integral reaction rates are reported for VENUS-I. Proton-recoil energy-dependent reaction rates are predicted using CEN/SCK calculated 17 group neutron energy spectra. These calculated reaction rates are compared with absolute NRE observations at seven different locations in steel and water regions of VENUS-1. The agreement between calculations and NRE observed absolute proton-recoil reaction rates depends sensitively on location in VENUS-1. Adequate agreement is attained near the center of the core. However, as one approaches the edge of the core corner at approximately 28°, the agreement deteriorates. Comparisons between theory and experiment are limited by the broad energy resolution of the 17 energy group structure used in the calculations. Nevertheless, these comparisons do suggest that difficulties arise in the calculation of neutron transport as one approaches the edge of the core corner. In the 1983 dosimetry campaign in VENUS-I, possible perturbations introduced by 4π proton-recoil gas-filled proportional counters were investigated with NRE. Preliminary l-integral and J-integral proton-recoil reaction rates from NRE irradiated in this perturbation study reveal that proportional counters do create non-negligible perturbations in LWR-PV environments.

    Original languageEnglish
    Title of host publicationReactor Dosimetry
    Subtitle of host publicationMethods, Applications, and Standardization
    EditorsHarry Farrar, Ezra Parvin Lippincott
    PublisherAmerican Society for Testing and Materials
    Pages348-356
    Number of pages9
    ISBN (Electronic)9780803111844
    DOIs
    StatePublished - 1989
    Event1987 - 6th ASTM-Euratom Symposium on Reactor Dosimetry: Methods, Applications, and Standardization - Jackson Hole
    Duration: 31 May 19875 Jun 1987

    Publication series

    NameASTM Special Technical Publication
    VolumeSTP 1001
    ISSN (Print)0066-0558

    Conference

    Conference1987 - 6th ASTM-Euratom Symposium on Reactor Dosimetry
    Country/TerritoryUnited States
    CityJackson Hole
    Period1987-05-311987-06-05

    Funding

    FundersFunder number
    NRC - National Research Council of Canada

      ASJC Scopus subject areas

      • General Materials Science

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