Thermoluminescence dating laboratory
When we receive your sample we must first prepare it for measurement.Powder samples (from pottery and bronze cores) are mixed with acetone and allowed to settle, so that fine grains, approximately 1/100mm. These grains are deposited and dried onto aluminium discs (for fine-grain analysis) or rhodium (for pre-dose analysis).The older the pottery, the more radiation it has absorbed and the brighter the pottery sample glows.
post 1700 AD, early Iron Age contexts, late glacial timescales) and when the relationship between the organic materials and the archaeological context is uncertain.The age range for pottery and other ceramics covers the entire period in which these materials have been produced.The typical range for burnt stone or sediment is from about 100 to 300,000 years. The age of the pottery, in principle, may then be determined by the relation Age = Accumulated dose / Dose per year Although conceptually straightforward, TL has proven to to be far from simple in practice. Should I be concerned about artificial irradiation? If the radioactivity of the pottery itself, and its surroundings, is measured, the dose rate, or annual increment of dose, may be computed.Fieldwork (within Southern England) including in-situ radioactivity measurements, sample collection and travel to and from site can be undertaken at a daily rate of £300 VAT.We are also able to conduct sample collection outside of the UK if the client is willing to cover additional transport, accommodation and subsistence costs.Since many years IPSES manufactures and supplies complete laboratories for thermoluminescence analysis for universities and research institutes both in Italy and abroad, providing not only all the necessary equipment, but also advice and training to guide in choosing the best solutions and using the equipment.Our thermoluminescence laboratories are currently used in: Italian National Institute for the Physics of Matter (INFM); University of Milan-Bicocca; University of Torino; University of Lecce; University of Bari; the Research Institute Pastis CNRSM of Brindisi; the Arcadia - Technologies for Cultural Heritage, Milan; Department of Conservation and Restoration of the Museum of Xian (China); Tubitak Marmara Research Institute - CNRS, Gebze (Turkey); Department of Archeology – National Museum and Library of Myanmar. General references Links to other useful sites BACK TO HOME PAGE HOW DOES THERMOLUMINESCENCE DATING WORK?In all, close to two dozen physical quantities must be accurately measured to establish the relationship between doses of different kinds of radiation and light output, and to compute dose rate.