[en] A dosimetric methodology was established for the determination of extremity doses of individuals occupationally exposed to beta radiation, using Al₂O₃:C detectors and the optically stimulated luminescence (OSL) reader system microStar, Landauer. The main parts of the work were: characterization of the dosimetric material Al₂O₃:C using the OSL technique; establishment of the dose evaluation methodology; dose rate determination of beta radiation sources; application of the established method in a practical test with individuals occupationally exposed to beta radiation during a calibration simulation of clinical applicators; validation of the methodology by the comparison between the dose results of the practical test using the OSL and the thermoluminescence (TL) techniques. The results show that both the OSL Al-2O₃:C detectors and the technique may be utilized for individual monitoring of extremities and beta radiation. (author)