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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.A sample of the earth also needs to be collected so environmental radiation can be tested.The wetness of the soil and the sample should also be recorded.When collecting samples for thermoluminescence dating, several samples from different vessels should be taken, not smaller than 1 gram.Samples should not be exposed to heat and powdery examples should not be exposed to bright light.Indeed, the figure shows an automatic instrumentation which allows measurement of thermoluminescence light from samples and also the determination of the dose rate per year.
Generally, for example, we can’t establish when a vermilion stroke was brushed onto a painting, but we can date most of the materials that the pigments are painted on.
When the object is heated to 350 degrees Celsius the trapped electrons are released and this is called a clock resetting event.
From this time on, electrons start to build up again because of the natural radioactivity.
Create fake pottery that will pass the thermoluminescence test One way to pass a fake through a TL test is to expose the newly-made pottery to a high dose of artificial radiation sources, thus fooling the measurement instruments.
However, producing fakes with this method calls for expertise on the subject, as well as expensive instruments.