Quartz Defects, Optically Stimulated Luminescence and Thermoluminescence
Point defects in solids. Any break in the regular pattern of a crystal, due to absence of an atom (vacancy) or to an atom of the crystal in a position out of the regular lattice (interstitial) or an extra atom of different species (impurity).
Luminescence. Energy emission in the form of light as a consequence of absorption of energy of various types: As an example radioluminescence occurs when a crystal emits light after absorption of ionizing radiation. As a general rule luminescence involves electrons that increase their energy level in the absorption (excitation) and return to the original level causing light emission (de-excitation).
Delayed luminescence is a particular type of luminescence occurring when on average there is light emission long after the energy absorption. The most frequently reported delayed luminescence is phosphorescence, caused by transition rules that make scarcely probable the radiative recombination.
Thermoluminescence (TL)is a kind of delayed...
KeywordsElectron Spin Resonance Electron Spin Resonance Signal Optically Stimulate Luminescence Glow Peak Luminescence Emission
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