Thermoluminescent dosimeter
Thermoluminescent Dosimeter
A Thermoluminescent Dosimeter (TLD) /θɜːrməˈluːmɪnəsənt doʊˈsɪmɪtər/ is a device that measures ionizing radiation exposure by measuring the intensity of visible light emitted from a crystal in the detector when the crystal is heated. The amount of light emitted is dependent upon the radiation exposure.
Etymology
The term "Thermoluminescent Dosimeter" is derived from three words. "Thermo" comes from the Greek word "therme," meaning heat. "Luminescent" is derived from the Latin word "lumin," meaning light, and "dosimeter" comes from the Greek word "dosos," meaning dose, and "metron," meaning measure.
Function
A Thermoluminescent Dosimeter is used to measure the dose of radiation a person or object has been exposed to. The dosimeter contains a material that absorbs radiation. When this material is heated, it releases the absorbed radiation in the form of light. The intensity of this light is proportional to the amount of radiation absorbed, allowing for an accurate measurement of radiation exposure.
Related Terms
- Ionizing radiation: Ionizing radiation is radiation with enough energy to remove tightly bound electrons from atoms, thus creating ions.
- Dosimetry: Dosimetry is the measurement of the amount of radiation dose received by an individual.
- Radiation exposure: Radiation exposure is the measure of the amount of ionizing radiation that a person or object is exposed to.
See Also
External links
- Medical encyclopedia article on Thermoluminescent dosimeter
- Wikipedia's article - Thermoluminescent dosimeter
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