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  • Title: [A gamma-ray sensitometer for film-screen combinations in diagnostic radiology].
    Author: Nowotny R, Bliem J.
    Journal: Rontgenblatter; 1985 Apr; 38(4):117-20. PubMed ID: 4001775.
    Abstract:
    On account of the high cost of standardised x-ray equipment, a 5 Ci Am-241 gamma ray source (59.6 keV) was used for setting up a sensitometer. The exposure rate at the film cassette is adjusted by means of a variable distance (5-250 cm) from the source. Using exposure times of 2 sec, screens with sensitivities greater than 500 can be measured. The properties of the sensitometer are described.
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