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Advances in luminescence instrument systems |
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| Authors: | L. B tter-Jensen, E. Bulur, G. A. T. Duller,A. S. Murray |
| Affiliation: | a Risø National Laboratory, DK-4000, Roskilde, Denmark b Institute of Geography and Earth Sciences, University of Wales, Aberystwyth SY23 3DB, UK c The Nordic Laboratory for Luminescence Dating, Department of Earth Sciences, Aarhus University, Risø National Laboratory, DK-4000, Roskilde, Denmark |
| Abstract: | We report on recent advances in the development of luminescence measurement systems and techniques at Risø. These include: (1) optical stimulation units based on new-generation powerful blue light (470 nm) emitting diodes providing up to 28 mW/cm2 for OSL measurements; (2) an infrared (830 nm) laser diode unit providing up to 400 mW/cm2 for stimulation of feldspars; and finally (3) an optical stimulation attachment based on a focused solid state green (532 nm) laser for rapid OSL measurements of individual sand-sized single grains of a sample. Facilities for heating samples during beta irradiation and performing linearly modulated OSL measurements have also been incorporated into the system. |
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