Abstract
Pulse annealing techniques are commonly used in OSL studies of quartz to obtain information on the kinetic parameters of OSL traps and hole reservoirs. In this paper, simulations of pulse annealing experiments are carried out using the comprehensive model for quartz developed by Bailey [2001. Towards a general kinetic model for optically and thermally stimulated luminescence of quartz. Radiat. Meas. 33, 17-45] for both natural and laboratory irradiated aliquots. The results of the simulations are in qualitative agreement with, and reproduce, several unusual features of the experimental data of Wintle and Murray [1998. Towards the development of a preheat procedure for OSL dating of quartz. Radiat. Meas. 29, 81-94]. The simulations are also carried out using different heating rates, and show that pulse annealing experiments can be used to recover appropriate kinetic parameters for both the OSL traps and the hole reservoirs known to exist in quartz. The results of the simulations show the importance of these hole reservoirs in determining how the OSL signal depends upon the preheat temperature.
| Original language | English |
|---|---|
| Pages (from-to) | 1587-1599 |
| Number of pages | 13 |
| Journal | Radiation Measurements |
| Volume | 42 |
| Issue number | 10 |
| DOIs | |
| State | Published - Nov 2007 |
Keywords
- Activation energy
- Lifetime
- OSL
- Pulse annealing
- Quartz
- Sensitivity changes
