Does thermoluminescence dating

The process of firing the vessel releases the trapped electrons (energy), and resets the thermoluminescence clock to zero.The process of accumulation of electrons (energy) and then release when heated occurs every time the ceramic vessel is reheated.What an archaeologist would be able to measure using this technique is the last time the vessel was heated above 500 degrees Celcius, either at the time the vessel was first fired or the last time it was heated if it was used as a cooking vessel.

The technique measures the small amount of energy that continually builds up in the mineral crystal lattice.The intensity of the light emmisions (luminescence) can be measured to determine the amount of time that has passed since the vessel was last heated and the present laboratory heating of the vessel. Luminescence Dating of the Buctouche Spit, New Brunswick. ) of nuclear radiation is determined for every artifact through the application of artificial doses of nuclear radiation (through heating or exposure to a laser light beam) to subsamples of the artifact to scale the signal. (in press) Optical Dating: A Review for Non-Specialists. Samples require about 100 milligram and the sample collection and handling step is critical. The rate of energy accumulation depends on the amount of background radiation to which the object has been exposed.Thus, preliminary X-ray or gamma radiography examination of the object can increase the amount of accumulated energy and thus give erroneous dating result.

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