Thermally stimulated luminescence origin in LiF crystals irradiated in a reactor at different temperatures

Thermally stimulated luminescence as well as optical absorption and emission spectra have been studied in LiF crystals irradiated in a reactor at different temperatures. It was shown that aggregate colour centres give rise to thermally stimulated luminescence peaks registered below 450°C. Peak at 47...

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Bibliographic Details
Published in:Radiation effects and defects in solids 2015-06, Vol.170 (6), p.477-483
Main Authors: Kvatchadze, V., Dekanozishvili, G., Kalabegishvili, T., Abramishvili, M., Galustashvili, M., Tavkhelidze, V.
Format: Article
Language:English
Subjects:
Channels
Color centers
colour centres
Crystal defects
Crystals
dislocations
Experiments
Irradiation
Luminescence
neutrons
photoluminescence
Radiation
Reactors
Temperature
thermally stimulated luminescence
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Summary:Thermally stimulated luminescence as well as optical absorption and emission spectra have been studied in LiF crystals irradiated in a reactor at different temperatures. It was shown that aggregate colour centres give rise to thermally stimulated luminescence peaks registered below 450°C. Peak at 470°C is observed only in crystals that have been irradiated at standard temperature of the reactor experimental channels. The peak is caused by interaction of dislocations and F centres.
ISSN:1042-0150
1029-4953
DOI:10.1080/10420150.2015.1036425