What is Thermoluminescence and how does it contribute to Archaeology?

Write about what thermoluminescence (TL)is, some facts and figures about it, its dating range for example.
Discuss its benefits and limitations as an archaeological practise.
Discuss its archaeological contributions
Discuss how some (TL) contributions are more valuable than others
Compare (TL) contributions and practicality with other dating methods including radio carbon dating and dendrochronology