Highlights
- Phototransferred thermoluminescence (PTTL) of rose quartz induced by 470 nm is reported.
- The sample presented five TL glow peaks at 76 °C (I), 115 °C (II), 180 °C (III), 290 °C (IV), and 423 °C (V).
- Only peaks I and II are reproduced by PTTL using blue light.
- The pulse annealing showed peaks I and II likely present one acceptor and two donors in the PTTL signal.
- Dependence on illumination time results shows a good fit when using the equation based on one acceptor and two donors (peak I and II), demonstrating a good correlation between pulse annealing prediction and the model.
Abstract
We report a preliminary study of phototransferred thermoluminescence (PTTL) induced by 470 nm light source in rose quartz. The glow curve corresponding to 1 Gy consists of five peaks at 76, 115, 180, 290 and 423 °C labelled I through V in that order. In the PTTL experiments employing blue light. PTTL was regenerated at peak I following preheating to remove peak I only and at peaks I and II otherwise. The dependence of the PTTL intensity on duration of illumination is analyzed in terms of a system of one acceptor and two donors in both cases. The mechanisms for the PTTL phenomena in the rose quartz are comprehensively discussed in this paper.
