Optically Induced Effects in Irradiated Ultrafine Al2O3–BeO Ceramics

We studied optically induced effects in ultrafine Al 2 O 3 –BeO ceramics irradiated with a high-dose pulsed electron beam (130 keV). Upon optical excitation of ceramics at 470 nm, optically stimulated luminescence is observed due to the depletion of traps associated with thermoluminescence peaks at...

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Bibliographic Details
Published in:Technical physics letters 2019-11, Vol.45 (11), p.1078-1081
Main Authors: Nikiforov, S. V., Borbolin, A. D., Marfin, A. Yu, Nikiforov, A. F.
Format: Article
Language:English
Subjects:
Aluminum oxide
Ceramics
Classical and Continuum Physics
Depletion
Dosimeters
Electron beams
Energy spectra
Luminescence
Photoionization
Physics
Physics and Astronomy
Thermoluminescence
Ultrafines
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Summary:We studied optically induced effects in ultrafine Al 2 O 3 –BeO ceramics irradiated with a high-dose pulsed electron beam (130 keV). Upon optical excitation of ceramics at 470 nm, optically stimulated luminescence is observed due to the depletion of traps associated with thermoluminescence peaks at 380 and 530 K. These traps are characterized by a complex energy spectrum with a nonuniformly distributed photoionization cross section. The prospects of using optically stimulated luminescence of Al 2 O 3 –BeO ceramics in high-dose dosimetry (3–30 kGy) have been proved.
ISSN:1063-7850
1090-6533
DOI:10.1134/S1063785019110105