Simulation of the Pre-Dose Effect of the 110(C TL Peak in Quartz

Abstract

Computer simulations of the pre-dose effect of the 110°C thermoluminescence (TL) peak in quartz are presented, based on an improved trap model. The proposed model includes a deep hole trap acting as reservoir, two recombination centres and two electron traps, of which one is a deep, not thermally disconnected trap. The model and its physical parameters have been chosen to simulate experimental data of pre-dose sensitisation, thermal activation curves and spectral emission. The simulations were performed by numerically solving the corresponding differential rate equations by a standard Runge-Kutta algorithm. It was possible to simulate a whole pre-dose cycle and to explain the shape of the thermal activation curve and linear dose dependencies of the sensitisation for pre-dose and test dose.