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Thermoluminescence , emission of light from some minerals and certain other crystalline materials. The light energy released is derived from electron displacements within the crystal lattice of such a substance caused by previous exposure to high-energy radiation. The intensity of the emission can be correlated to the length of time that a given substance was exposed to radiation; the longer the time allowed for the radiation to build up an inventory of trapped electrons, the greater the energy released. Because of this feature, thermoluminescence has been exploited as a means of dating various minerals and archaeological artifacts. Article Media. Info Print Cite.

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Read More on This Topic. Thermoluminescence means not temperature radiation but enhancement of the light emission of materials already excited electronically. Learn More in these related Britannica articles:.

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Thermoluminescence means not temperature radiation but enhancement of the light emission of materials already excited electronically by the application of heat. The phenomenon is observed with some minerals and, above all, with crystal phosphors after they have been excited by light.

Thermoluminescence dating

Another technique commonly applied in personnel monitoring is the use of thermoluminescent dosimeters TLDs. This technique is based on the use of crystalline materials in which ionizing radiation creates electron-hole pairs see below Active detectors: Semiconductor detectors.

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In this case, however, traps for these charges are. Potassium-argon dating has made it possible to establish that the earliest remains of man and his artifacts in East Africa go back at least 2, years, and probably further.

Thermoluminescence Dating. Thermoluminescence can be used to date materials containing crystalline minerals to a specific heating event. This is useful for ceramics, as it determines the date of firing, as well as for lava, or even sediments that were exposed to substantial sunlight. There are two main methods which use radiative dose: fission-track dating and luminescence methods, which include thermoluminescence and optically stimulated luminescence (Aiken, ). Another radiative dose method which can sometimes be used is the study of the buildup of electronic 'traps' by ESR dating (Lee and Schwarcz, ). Thermoluminescence, emission of light from some minerals and certain other crystalline materials. The light energy released is derived from electron displacements within the crystal lattice of such a substance caused by previous exposure to .

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Thermoluminescence dating history definition

Definition of thermoluminescence. Keep scrolling for more.

Thermoluminescence dating definition, a method of dating archaeological specimens, chiefly pottery, by measuring the radiation given off by ceramic materials as they are heated. See more. Aug 24,   Luminescence dating (including thermoluminescence and optically stimulated luminescence) is a type of dating methodology that measures the amount of light emitted from energy stored in certain rock types and derived soils to obtain an absolute date for a specific event that occurred in the past. Thermoluminescence definition is - phosphorescence developed in a previously excited substance upon gentle heating.

Examples of thermoluminescence in a Sentence Recent Examples on the Web Chantal Tribolo of the University of Bordeaux Montaigne performed what is called thermoluminescence analysis to determine whether the silcrete tools from Pinnacle Point were intentionally heated. First Known Use of thermoluminescencein the meaning defined at sense 1. History and Etymology for thermoluminescence International Scientific Vocabulary.

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Time Traveler for thermoluminescence The first known use of thermoluminescence was in See more words from the same year. Dictionary Entries near thermoluminescence thermohydrometer thermojunction thermolabile thermoluminescence thermomagnetic thermomechanical thermometamorphic See More Nearby Entries.

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Thermoluminescence Thermoluminescence (TL) dating is a technique that is based on the analysis of light release when heating crystalline material. TL-dating is used in mineralogy and geology, but is also increasingly being applied for dating of anthropological and archaeological samples. chlorophane mineral cool state heated stateFile Size: 1MB.

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Thermoluminescence Dating in Archaeology

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