Thermoluminescence dating example

thermoluminescence dating example

The sample material is illuminated with a very bright source of green or blue light for quartz or infrared light for potassium feldspars. The flux of ionizing radiation—both from cosmic radiation and from natural radioactivity —excites electrons from atoms in the crystal lattice into the conduction band where they can move freely. In other words, the OSL date on a foundation wall of a building is the last time that foundation was exposed to light before being used as the initial layers in a building, and hence when the building was first built. Share Flipboard Email.

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