Lessons learnt from an international intercomparison of national network systems used to provide early warning of a nuclear accident

J.C. Saez-Vergara, I.M.G. Thompson, E. Funck, C.E. Andersen, S. Neumaier, L. Bøtter-Jensen

    Research output: Contribution to journalJournal articleResearchpeer-review

    Abstract

    As part of the European Research Council's Fourth Framework Programme, the EURADOS Action Group on Monitoring of External Exposures held an intercomparison of national network systems. This took place during May/June 1999 at the Riso Natural Environmental Radiation Measurement Station in Denmark and at the Underground Laboratory for Dosimetry and Spectrometry (UDO) of the Physikalisch-Technische Bundesanstalt (PTB) in Germany. The network systems are used continuously to monitor radiation levels throughout a country in order to give early warning of nuclear accidents having transboundary implications. The radiation levels measured are used to estimate the radiation risks to people arising from the accident. Seven European countries participated in the intercomparison with detector systems used in their national network systems as well as with detectors being developed for future use. Since different radiation quantities were measured by the systems (namely exposure, air kerma and ambient dose equivalent), the initial analysis of the intercomparison results was made in terms of the quantity air kerma rate. This report completes the analysis of the results and these are given in terms of air kerma rate in order to be consistent with the preliminary report. In addition, in some cases the results are also given in terms of the quantity measured by each national network system. The experience gained from this intercomparison is used to help organise a follow-up intercomparison to be held at the PTB Braunschweig in September 2002 and in which a further seven or eight countries from Europe will participate.
    Original languageEnglish
    JournalRadiation Protection Dosimetry
    Volume103
    Issue number3
    Pages (from-to)197-210
    ISSN0144-8420
    Publication statusPublished - 2003

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