Thermoluminescence kinetic analysis of quartz with a glow peak that shifts in an unusual manner with irradiation dose

摘要: Thermoluminescence kinetic analysis using Tm–Tstop, glow curve deconvolution, variable heating rate and repeated initial rise methods have been carried out on the curves of a quartz with peak whose temperature goes through as function irradiation dose, an unusual feature for quartz. The sample showed four clear peaks around 82 °C (peak I), 148 II), 200 III) 292 IV) when irradiated to 1.8 Gy read at 1 s−1. IV first increases later decreases dose whereas temperatures I, II III are independent dose. Tm–Tstop deconvolution (GCD) analyses indicated presence least five about 80, 146, 199, 295 350 meaning that apparently single may consist two overlapping peaks. activation energy, E, frequency factor, S, associated each presented. E Tm values all in were found be dose-independent. It was also found, during use GCD, increases, number thermoluminescence (TL) required produce best fit although location TL themselves does not change This effect is explained terms relative intensities We noted ability GCD completely isolate depend