Phototransferred thermoluminescence of quartz

We investigate the thermoluminescence (TL) of natural quartz at low tempera tures. The samples were given different thermal treatments, followed by gam ma; irradiation at room temperature, illumination with UV light at -100 deg reesC and readout of the TL signal. At least five peaks were observed in th e TL glow curves of these samples. The dependence of these TL signals on th e heating temperature and UV illumination enable us to propose plausible ph ototransfer mechanisms at low temperatures. (C) 2001 Elsevier Science Ltd. All rights reserved.