Thermoluminescence of Natural Quartz Irradiated by Gamma Rays

Abstract

The Present investigation was undertaken to explore gamma irradiation effect of natural quartz by thermoluminescence. Glow curves of the samples irradiated by γ-rays were observed for various doses at the temperature 50°C∼500°C and were resolved into four component peaks, B 1 , B 2 , C and D. The nature of defects responsible for each peak was determined by comparison with glow peaks resulting from the samples to which Li + , Na + and Al 3+ were added by the diffusion at 1000°C. As the results, the defects responsible for the B 2 and the C peaks were due to the disturbed-network in the vicinity of the Li + and the Na + respectively, and the B 1 peak was associated with the aluminium center, and the defect for the D peak was due to oxygen vacancy. Increase and decrease of the B 1 peak height for the doses were related to the enhancement of the B 2 peak and the D peak respectively.