Investigation of the spectrally resolved TL peaks of quartz in the 70°C–220°C temperature region

Abstract

In this work, we investigate the thermoluminescence emission in the temperature range 70 °C–220 °C for different types of quartz, both natural and synthetic. We focus on three thermoluminescence peaks, the so called 110 °C one, which we detect at around 85 °C (5 °C/s), and the two intermediate peaks detected at about 150 °C and 200 °C. The effect of thermal annealing at 500 °C and 1000 °C on the glow curves are also considered. Using interference filters and, for selected samples, a wavelength resolved detection system, we analyse the different spectral components of the peaks. It turns out that the spectral emission of the three peaks is significantly different. The 85 °C peak shows the simultaneous emission of at least two UV bands, together with a blue and a red contribution. The two peaks at higher temperature spectra are identical and involve only a single UV emission band.