Thermoluminescence
Thermoluminescence[edit | edit source]
Thermoluminescence is a form of luminescence that is exhibited by certain crystalline materials, such as some minerals, when they are heated. It is caused by pre-existing ionizing radiation that is absorbed by the material, which can be natural or artificial.
Principle[edit | edit source]
The principle of thermoluminescence is based on the ability of certain materials to store energy when they are exposed to radiation. This energy is trapped in the form of electrons that are displaced from their normal positions in the crystal lattice. When the material is heated, these trapped electrons are released and recombine with ions in the lattice, emitting light in the process. The amount of light emitted is proportional to the amount of radiation absorbed by the material, which allows the dose of radiation to be measured.
Applications[edit | edit source]
Thermoluminescence has a wide range of applications in various fields. In archaeology, it is used for thermoluminescence dating of ancient pottery and other ceramic artifacts. In geology, it is used for dating rocks and sediments. In radiation dosimetry, it is used for measuring the dose of radiation received by a material or a person. In material science, it is used for studying the properties of materials.
Thermoluminescence Dating[edit | edit source]
Thermoluminescence dating is a method of determining the age of certain types of artifacts and geological samples. It is based on the principle that some materials, such as pottery and certain types of rock, absorb radiation from the environment over time. When these materials are heated, they release this stored energy in the form of light. By measuring the amount of light emitted, scientists can determine the amount of radiation that the material has absorbed, which can be used to estimate its age.
See Also[edit | edit source]
References[edit | edit source]
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Contributors: Prab R. Tumpati, MD
