title: Sodium Iodide Crystal Dosimeters for Use in Surveys of Regions of High Background Radiation.
abstract: 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.
authors.forename: F X
authors.initials: FX
authors.lastname: Roser
authors.forename: T L
authors.initials: TL
authors.lastname: Cullen