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For instance, it is possible to date the wood support of a panel as well as canvas.

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Thermoluminescence dating is generally not very accurate.

The accuracy of thermoluminescence dating is only about 15% for a single sample and 7 to 10% for a suite of samples in a single context.

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Energy absorbed from ionizing radiation frees electrons to move through the crystal lattice, some of which are trapped at imperfections in the crystal lattice.

Later, heating releases the trapped electrons, producing light.This usually occurs when the items are heated to 350 degrees Celsius.Therefore, in archaeology, thermoluminescence dating works best for ceramics, cooking hearths, incidentally fire-cracked rocks, and deliberately fire-treated rocks, such as flint or chert.Electron trapping Energy absorbed from ionizing radiation frees electrons to move through the crystal lattice, where some are trapped at imperfections.Later heating releases the trapped electrons, producing light whose intensity is proportional to the amount of radiation absorbed.A sample of the earth also needs to be collected so environmental radiation can be tested.