(d) Further light exposure of grains with erosion and transport zeros the luminescence.(e) The grains are buried again and luminescence is acquired with exposure to ionizing radiation.
Luminescence dating is particularly appropriate when radiocarbon dating is not possible (either where no suitable material is available or for ages beyond the radiocarbon age limit) or for applications affected by radiocarbon plateau effects (e.g.
post 1700 AD, early Iron Age contexts, late glacial timescales) and when the relationship between the organic materials and the archaeological context is uncertain.
Alpha particles are about 90 to 95% less effective in inducing luminescence compared to beta and gamma radiation.
Thus, the population of stored electrons in lattice-charge defects increases with prolonged exposure to ionizing radiation and the resolved luminescence emission increases with time.
In addition, the inherent residual level is influenced by the susceptibility of the luminescence signal of a specific mineral to solar resetting.