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en:aree:epr:altre_risorse:luminescenze [2018/08/07 16:21] Gianluca Frustagli English translation. |
en:aree:epr:altre_risorse:luminescenze [2019/06/19 14:03] (current) Gianluca Frustagli Adjusted text in fig. 1 (stimulated luminescence). |
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| Stimulated luminescence is observed during optical or thermal stimulation of materials previously exposed to ionizing radiation. These materials are mostly solid insulators which can keep track of the ionizing radiation interaction through processes of charge trapping in defects of the crystal lattice (Figure 1). | Stimulated luminescence is observed during optical or thermal stimulation of materials previously exposed to ionizing radiation. These materials are mostly solid insulators which can keep track of the ionizing radiation interaction through processes of charge trapping in defects of the crystal lattice (Figure 1). | ||
| - | {{ :aree:epr:altre_risorse:luminescenza_stimolata.svg |Stimulated luminescence mechanism}} \\ | + | {{ :en:aree:epr:altre_risorse:luminescenza_stimolata.svg |Stimulated luminescence mechanism}} \\ |
| <wrap lo>**Figure 1:** The phenomenon of stimulated luminescence in a quartz crystal: in the crystal structure there are defects (oxygen vacancies, aluminum impurities) where the charges released by the ionizing radiation are trapped. The optical or thermal stimulation provides the energy needed to free the charges and restore the initial conditions. The recombination processes of trapped charges can produce light emission.</wrap> | <wrap lo>**Figure 1:** The phenomenon of stimulated luminescence in a quartz crystal: in the crystal structure there are defects (oxygen vacancies, aluminum impurities) where the charges released by the ionizing radiation are trapped. The optical or thermal stimulation provides the energy needed to free the charges and restore the initial conditions. The recombination processes of trapped charges can produce light emission.</wrap> | ||
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| <wrap lo>**Figure 2:** Example of OSL decay curve.</wrap> | <wrap lo>**Figure 2:** Example of OSL decay curve.</wrap> | ||
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| + | /* > FIXME **To be revised.**\\ //(remove this paragraph once finished)// */ | ||
