Spatial correlation of latent image centers active in photostimulable luminescence of irradiated doped alkali halides

Aija Tale; Irena Plavina

doi:10.1117/12.417595

8 March 2001 Spatial correlation of latent image centers active in photostimulable luminescence of irradiated doped alkali halides

Aija Tale, Irena Plavina

Author Affiliations +

Proceedings Volume 4318, Smart Optical Inorganic Structures and Devices; (2001) https://doi.org/10.1117/12.417595
Event: Advanced Optical Materials and Devices, 2000, Vilnius, United States

Abstract

Changes in the photostimulated luminescence (PSL) spectrum of an electron irradiated KBr:Tl single crystal in relation to the A-luminescence spectrum upon direct activator ion excitation in the A-absorption band (AL) are found. Based on the view about the spatial correlation between F and activator hole centers, it is suggested that anion vacancy is an additional perturbing factor fot he activator (Tl⁺) excited (p-electron) state which is already subject to the dynamical Jahn-Teller effect. Dependences of the PSL efficiency on activator (In⁺) concentration in KBr:In samples irradiated by UV-light (6.30-6.45 eV), X-rays (30 keV or electrons (5.6 keV), are compared. The possible role of 6.45 eV photons is discussed in context with the hypothesis of efficient exciton energy transfer at room temperature (RT).

Citation Download Citation

Aija Tale and Irena Plavina "Spatial correlation of latent image centers active in photostimulable luminescence of irradiated doped alkali halides", Proc. SPIE 4318, Smart Optical Inorganic Structures and Devices, (8 March 2001); https://doi.org/10.1117/12.417595

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