Luminescence dating definition

any giving off of light caused by the absorption of radiant or corpuscular energy and not by incandescence; any cold light; specif., fluorescence or phosphorescence occurring in various chemical, biological, electrical, etc.

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The clay core of bronze sculptures made by lost wax casting can also be tested.

Different materials vary considerably in their suitability for the technique, depending on several factors.

Luminescence is caused by chemical, biochemical, or crystallographic changes, the motions of subatomic particles, or radiation-induced excitation of an atomic system.

Emission of light by certain substances resulting from the absorption of energy (e.g.

The heating must have taken the object above 500° C, which covers most ceramics, although very high-fired porcelain creates other difficulties.

It will often work well with stones that have been heated by fire.

See bioluminescence; fluorescence; incandescence; fluorescent lamp; phosphorescence.

Sensor Application Handbook" or to talk to an applications engineer about how UV sensors can reduce manufacturing costs and improve processes, call EMX at 800-426-9912, send email to [email protected]

Subsequent irradiation, for example if an x-ray is taken, can affect accuracy, as will the "annual dose" of radiation a buried object has received from the surrounding soil.

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