Stimulated luminescence of AlN ceramics induced by ultraviolet radiation

Properties of thermally stimulated luminescence (TL) and optically stimulated luminescence (OSL) of the ceramic material AlN-Y₂O₃ have been studied after exposure to ultraviolet radiation (UVR). The dosemeter material Al₂O₃: C has been used for comparative measurements. The spectral sensitivity of the samples has been studied and compared with spectral effectiveness of the UVR-induced biological processes. It has been shown that a very high yield and linear dose response characterise the UVR-induced TL from AlN-Y₂O₃. Although lower than the TL, the OSL signal from UV-exposed AlN-Y₂O₃ is still higher than that of Al₂O₃: C in a broad spectral region. The possibility of using AlN-Y₂O₃ ceramic for UVR dosimetry is discussed.