Abstract
The use of Al 2O 3:C single crystals as optically stimulated luminescnce (OSL) dosemeters for rapid assessment of the environmental photon dose rate is proposed. It is shown that Al 2O 3:C possesses higher OSL sensitivity than TL sensitivity. In TL measurements thermal quenching is a major problem that crucially depends on the heating rate used and, therefore, the all-optical nature of the OSL procedure is an obvious advantage as it obviates the necessity to heat the material thereby avoiding destruction of the luminescence signal. It is demonstrated that the exceptional high OSL sensitivity and the energy response (equal to that of quartz) make Al 2O 3:C ideal for measuring the environmental dose rates in connection with luminescence dating and retrospective dosimetry using natural materials and ceramics.
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