Radioactive contamination of Danish Territory after core-melt accidents at the Barsebäck Power Plant

H.L. Gjørup, Niels Otto Jensen, Per Hedemann Jensen, Leif Kristensen, Ole John Nielsen, Erik Lundtang Petersen, T. Petersen, Jørn Roed, Søren Thykier-Nielsen, Frits Heikel Vinther, L. Warming, Asker Aarkrog

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    An assessment is made of the radioactive contamination of Danish territory in the event of a core-melt accident at the Barseback nuclear power plant in Sweden.

    Accidents including both core melt-down and containment failure are considered. Consequences are calculated for a BWR-3 release under common meteorological conditions and for a BWR-2 release under extreme meteorological conditions. Calculations are based on experiments and theoretical work relating to deposition vel ocities for different types of surface, shielding effect of structures, and weathering.

    The effects are described of different dose-reducing measures, e.g., decontamination, relocation, destruction of contaminated foodstuffs. The collective effective dose equivalent from external gamma radiation from deposited activity integrated over a time period of 30 years, is calculated to be 3.6 Megamanrem in the BWR-3 case without dose-reducing measures. For the BWR-2 case, the corresponding dose is approx. 41 Megamanrem. A combination of temporary relocation, hosing of roads etc. and digging of gardens is estimated to reduce these doses to approx. 2.5 Megamanrem and approx. 15 Megamanremf respectively.

    The collective committed effective dose equivalent from the consumption of contaminated foodstuffs is calculated to 23 Megamanrem in the BWR-3 case without dose-reducing measures. This dose could be reduced to 0.2 Megamanrem if contaminated crops are destroyed during the first year after the accident and if changes are made in agricultural production in the contaminated area. The corresponding doses in the BWR-2 case would be 197 Megamanrem and 1.4 Megamanrem, respectively.
    Original languageEnglish
    Place of PublicationRoskilde, Denmark
    PublisherDanmarks Tekniske Universitet, Risø Nationallaboratoriet for Bæredygtig Energi
    Number of pages186
    ISBN (Print)87-550-0831-3
    Publication statusPublished - 1982
    SeriesDenmark. Forskningscenter Risoe. Risoe-R


    • Risø-R-462
    • Risø-R-462(EN)

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