The purpose of this paper is to investigate characteristics of luminescence signals resulting from pulsed optical stimulation of feldspars and thereby to understand the underlying processes giving rise to the signal. Fourteen different feldspar specimens were investigated using time-resolved optically stimulated luminescence (TR-OSL), and these signals can be mathematically described as a sum of 4 exponential components (a, b, c, d). The slowest component, d, increases with the duration of the light pulse as expected from the exponential model. The stimulation temperature dependence experiment suggests that the TR-OSL signal decay is governed by the recombination process and not by the excited state lifetime. Furthermore data from the TR-OSL signal dependence on stimulation time and preheat temperature suggest that the recombination process may not be a sum of exponentials, although the model cannot be rejected definitively.
|Publication status||Published - 2009|
|Event||12th International Conference on Luminescence and Electron Spin Resonance Dating - Beijing, China|
Duration: 18 Sep 2008 → 22 Sep 2008
|Conference||12th International Conference on Luminescence and Electron Spin Resonance Dating|
|Period||18/09/2008 → 22/09/2008|
- Radiation physics
- Nuclear technologies