Sodium Iodide Crystal Dosimeters for Use in Surveys of Regions of High Background Radiation

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Science  12 Oct 1962:
Vol. 138, Issue 3537, pp. 145-146
DOI: 10.1126/science.138.3537.145


In a study of selected regions of high background radiation in Brazil, thallium-activated NaI crystals were used as density amplifiers for dosimeter film badges. Calibration experiments were made, and the field results are summarized.