Journal article
Charge movement in grains of quartz studied using exo-electron emission
Radiation Physics, Radiation Research Division, Risø National Laboratory for Sustainable Energy, Technical University of Denmark1
Radiation Research Division, Risø National Laboratory for Sustainable Energy, Technical University of Denmark2
Risø National Laboratory for Sustainable Energy, Technical University of Denmark3
A flow-through Geiger-Muller pancake electron detector attachment has been fitted to the Riso TL/OSL reader, enabling optically stimulated electrons (OSE) to be measured simultaneously with optically stimulated luminescence (OSL). This detector has been used to provide new insights into charge movement in luminescence phosphors.
Here we show that OSE from natural quartz grains gives an easily detectable, reproducible and light sensitive signal, although it is not as intense as OSL. A single sample of natural quartz grains extracted from a sediment is used to investigate the thermal stability and dependence on stimulation temperature of the OSE and OSL signals.
The response to dose of these signals is also investigated, and conclusions drawn on the movement of electrons in this natural phosphor. (C) 2007 Elsevier Ltd. All rights reserved.
| Language: | English |
|---|---|
| Year: | 2008 |
| Pages: | 273-277 |
| Proceedings: | Solid State Dosimetry Conference |
| ISSN: | 18790925 and 13504487 |
| Types: | Journal article |
| DOI: | 10.1016/j.radmeas.2007.10.044 |
| ORCIDs: | 0000-0001-5559-1862 , Ankjærgaard, Christina and Jain, Mayank |
