Abstract
Thermoluminescence (TL) glow curves of gamma-irradiated SrCl2 doped with Eu, Gd, Tb and Am in trivalent form have been obtained in the temperature ranges 77-300K and 300-600K. The glow peaks in the lower temperature range are accounted for by the successive bleaching of Vk-type trapped hole centres. Electron paramagnetic resonance (EPR) studies of Eu-doped samples in the temperature range 300-500K have been carried out in detail and the results strongly suggest that the TL glow peak around 500K is followed by the trapping of an electron by Eu3+ and the TL glow around 420K is due to the thermal destruction of OH0 centres. The TL glow curves have been analysed to obtain the trap depth and frequency factors.
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