Quartz OSL: Effects of thermal treatment and their relevance to laboratory dating procedures |
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| Affiliation: | 1. Institute of Geography and Earth Sciences, University of Wales, Aberystwyth SY23 3DB, UK;2. The Nordic Laboratory for Luminescence Dating, Department of Earth Sciences, Aarhus University, Risø National Laboratory, DK-4000 Roskilde, Denmark;1. University of Cologne, Institute of Geography, Zülpicher Str. 45, 50674 Cologne, Germany;2. Birkbeck University of London, Department of Geography, Environment and Development Studies, London, UK;3. University Paris Est Créteil Val de Marne, Department of Geography, Paris, France;4. Centro Nacional de Investigación sobre la Evolución Humana (CENIEH), Burgos, Spain;5. Edge Hill University, Department of Geography, Ormskirk, UK;6. University of Mainz, Institute for Geosciences, Mainz, Germany;1. National Research Centre for Radiation Medicine, Kyiv, Ukraine;2. Lviv Polytechnic National University, Lviv, Ukraine;3. Institute of Physics, Polish Academy of Sciences, Warsaw, Poland;1. School of Geography and the Environment, University of Oxford, South Parks Road, Oxford, OX1 3QY, UK;2. Institute of Earth Surface Dynamics, University of Lausanne, Bâtiment Geopolis, UNIL-Mouline, 1015 Lausanne, Switzerland;3. Department of Geography and Earth Sciences, Aberystwyth University, Aberystwyth, Ceredigion, SY23 3DB, UK |
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| Abstract: | In dating procedures, whether single or multiple aliquot, OSL signals are obtained after samples have been heated in the laboratory with preheat procedures as short as a few seconds or as long as several hours. The OSL signals may be obtained whilst stimulating at a variety of temperatures. These thermal treatments will affect both the trapped electron population(s) in the material and the recombination centres (or trapped hole populations). Several effects may occur simultaneously. Experimental evidence is presented which is used to select the most appropriate thermal treatments in laboratory dating procedures. |
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