An intercomparison of detectors for measurement of background radiation

S.P. Nielsen, L. Bøtter-Jensen

    Research output: Book/ReportReport

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    Measurements of the background radiation were made in 1978 at 14 locations with a high-pressure ionization chamber, thermoluminiscence dosimeters (TLD's), two Nal(Tl) detectors, and a Ge(Li) spectrometer system. Simultaneous measurements with the ionization chamber and the spectrometer system provide reliable estimates of the total background exposure rate, of the individual contributors to the terrestrial exposure rate, and of the exposure rate from the secondary cosmic radiation. The TLD results agree with those of the ionization chamber. The Nal(Tl) detector results show that accurate estimates of the terrestrial exposure rate can be obtained if empirical corrections are applied.
    Original languageEnglish
    Place of PublicationRoskilde, Denmark
    PublisherRisø National Laboratory
    Number of pages39
    ISBN (Print)87-550-0755-4
    Publication statusPublished - 1981


    • Risø-M-2239
    • Background radiation
    • Calibration
    • Comparative evaluations
    • Cosmic radiation
    • Ionizing chambers
    • Li-drifted Ge detectors
    • Nai detectors
    • Radiation dose
    • Thermoluminescent dosemeters


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