During the s and s scientists at Simon Frasier University, Canada, developed standard thermoluminescence dating procedures used to date sediments. Inthey also developed optically stimulated luminescence dating techniques, which use laser light, to date sediments. How does Luminescence work? By heating the ceramic or mineral to above degrees Celcius, these trapped electrons are released, creating a flash of light called thermoluminescence.
When a laser light source is used to stimulate the release of electrons, the optical luminescence dating california is called optically stimulated luminescence. Luminescence Profile In the process of making a ceramic vessel, the soft clay vessel must be heated in a kiln to harden it. The process of firing the vessel releases the trapped electrons energyand resets the thermoluminescence clock to zero.
The principal minerals used in luminescence dating are quartz and potassium feldspar. Types of Luminescence Dating Techniques. Thermal (TL); Optically.