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Thermoluminescence dating problems

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Abstract — Thermoluminescence TL dating is a powerful tool in archaeology, and its reliability has been checked since the early s. It is, in principle, specific for ceramic, but it can also be successfully applied to other materials of archaeological interest, provided that they have been submitted in the past to some kind of heating up to several hundreds of degrees centigrade. This is the case of prehistoric flint deliberately or accidentally burnt by ancient man. Illustrating the specific aspects of this application, we report the TL dating results of a group of burnt flints from three prehistoric sites in northern Italy.
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Luminescence Dating

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DRI Luminescence Laboratory - DRI

Thanks for helping us catch any problems with articles on DeepDyve. We'll do our best to fix them. Check all that apply - Please note that only the first page is available if you have not selected a reading option after clicking "Read Article". Include any more information that will help us locate the issue and fix it faster for you. The thermoluminescence dating of burnt flints has become a major tool in the elaboration of the chronology of human settlements of the last half a million years. The reliability of an age estimate depends to a great extent on the accuracy with which the internal and external radiation dose rates prevailing during the duration of burial can be determined. While determining the internal dose rate is relatively straightforward, the same cannot be said of the external, particularly if the sediment surrounding the flints is mineralogically heterogeneous or has undergone diagenetic changes during prolonged burial.
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DRI Luminescence Laboratory

Thermoluminescence dosimetry TLD is a versatile tool for the assessment of dose from ionising radiation. The wide variety of TLD materials and their different physical forms allow the determination of different radiation qualities at dose levels from microGy to kGy. Major advantages of TL dosimeters are their small physical size and that no cables or auxiliary equipment is required during the dose measurement.
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Thermoluminescence Testing TL is an advanced scientific method used to help date ceramics, clay, lava and some bronzes. It measures the accumulation of natural radiation in the item since it was last fired at high temperature, such as when ceramics were originally made or during a volcano eruption. However, even at the high margin of error, it is still useful in determining if a vase or ceramic figure is really ancient or a modern fake. The science of thermoluminescence testing Most natural minerals, such as the quartz and felspar contained in clay and ceramics, have the property of thermoluminescence where they retain energy from natural radioactive decay in and around the mineral. The retained energy is in the form of trapped electrons.
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