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On some projects I’ve seen the samples collected by pounding an opaque PVC tube into the wall of an excavation unit.
Grains are then optically stimulated by blue, green or infrared photons, and the OSL emissions are detected using a photomultiplier tube.
For single-grain analysis, individual grains are deposited in holes drilled into custom-made discs and a focussed laser beam is shone into each hole (photos: Risø National Laboratory and Bert Roberts).
Moser This summer during the height of the University of South Florida/Ohio State University field school at Crystal River Archaeological State Park, I had the opportunity to speak with Dr.
It is recognised as one of the world’s leading archaeological dating laboratories, based on its track record of using OSL dating to answer internationally significant questions in archaeology and palaeoanthropology.
Past and present research interests span a wide geographic compass, including Africa, Asia, Australia, Europe and North America, and topics as diverse as the evolution and behaviour of humans (Homo sapiens, Homo floresiensis and Homo neanderthalensis), their response to climatic changes over the past 200,000 years, and their interaction with the indigenous fauna and flora.