Open AccessОптически индуцированные эффекты в облученных ультрадисперсных керамиках Al-=SUB=-2-=/SUB=-O-=SUB=-3-=/SUB=--BeO
Author(s) -
S. V. Nikiforov,
А.Д. Борболин,
А.Ю. Марфин,
A. F. Nikiforov
Publication year - 2019
Publication title -
pisʹma v žurnal tehničeskoj fiziki
Language(s) - English
Resource type - Journals
eISSN - 1726-7471
pISSN - 0320-0116
DOI - 10.21883/pjtf.2019.21.48466.17849
Subject(s) - thermoluminescence , optically stimulated luminescence , photoionization , luminescence , materials science , excitation , ceramic , persistent luminescence , irradiation , dosimetry , atomic physics , analytical chemistry (journal) , radiochemistry , optoelectronics , chemistry , ion , nuclear physics , physics , nuclear medicine , ionization , medicine , organic chemistry , chromatography , quantum mechanics , composite material
Optically induced effects in ultrafine Al2O3-BeO ceramics irradiated with high doses of a pulsed electron beam (130 keV) were investigated. It is found that optical (470 nm) excitation of ceramics results in optically stimulated luminescence due to the emptying of traps associated with thermoluminescence peaks at 380 and 530 K. It is found that these traps are characterized by a complex energy spectrum with a non-uniformly distributed photoionization cross section. The prospect of using optically stimulated luminescence of Al2O3-BeO ceramics in high-dose dosimetry (3-30 kGy) is proved.