Then we need to correlate thermoluminescence light to radiation dose rate per year which the sample has received since its last clock resetting event.
Eventually, we will follow this formula to found out how many years old the sample is: Age (year) = accumulated dose / dose rate per year Thermoluminescence dating can be performed only in a specialized laboratory which will have a chemical section for the treatment of the samples with reagents and a radiation hazard restricted area.
For instance, it is possible to date the wood support of a panel as well as canvas.
The three most important dating techniques which are useful for the analysis of works of art are: Thermoluminescence (TL), Dendrochronology (DC), and Carbon 14 (C15). It dates items between the years 300-10,000 BP (before present).
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.
Thermoluminescence dating is generally not very accurate.