Browsing Zinātniskie raksti (CFI) / Scientific articles by Author "Kuzovkov, Vladimir N."
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Distinctive features of diffusion-controlled radiation defect recombination in stoichiometric magnesium aluminate spinel single crystals and transparent polycrystalline ceramics
Lushchik, Aleksandr Ch; Feldbach, Eduard Kh; Kotomin, Eugene A.; Kudryavtseva, Irina; Kuzovkov, Vladimir N.; Popov, Anatoli I.; Seeman, Viktor O.; Shablonin, Evgeni (2020)MgAl2O4 spinel is important optical material for harsh radiation environment and other important applications. The kinetics of thermal annealing of the basic electron (F, F+) and hole (V) centers in stoichiometric MgAl2O4 ... -
Evidence for the formation of two types of oxygen interstitials in neutron-irradiated α-Al2O3 single crystals
Lushchik, Aleksandr; Kuzovkov, Vladimir N.; Kotomin, Eugene A.; Prieditis, G.; Seeman, V.; Shablonin, E.; Vasil’chenko, E.; Popov, Anatoli (Nature Research, 2021)Due to unique optical/mechanical properties and significant resistance to harsh radiation environments, corundum (α-Al2O3) is considered as a promising candidate material for windows and diagnostics in forthcoming fusion ... -
Kinetic Monte Carlo modeling of Y2O3 nano-cluster formation in radiation resistant matrices
Zvejnieks, Guntars; Anspoks, Andris; Kotomin, Eugene A.; Kuzovkov, Vladimir N. (Elsevier B.V., 2018)As known, Y2O3 nano-clusters considerably increase radiation resistance of reactor construction materials. To model the nano-cluster formation kinetics, we propose the simplest possible mathematical model and perform kinetic ... -
Kinetics of dimer F2 type center annealing in MgF2 crystals
Kuzovkov, Vladimir N.; Kotomin, Eugene A.; Popov, Anatoli (Elsevier B.V., 2018)In this paper, we analyzed experimental annealing kinetics of the primary electronic F centers and dimer F2 centers observed in MgF2 at higher radiation doses and temperatures. The developed phenomenological theory takes ... -
Kinetics of the electronic center annealing in Al2O3 crystals
Kuzovkov, Vladimir N.; Kotomin, Eugene; Popov, Anatoli (Elsevier B.V., 2018)The experimental annealing kinetics of the primary electronic F, F+ centers and dimer F2 centers observed in Al2O3 produced under neutron irradiation were carefully analyzed. The developed theory takes into account the ... -
Peculiarities of the diffusion-controlled radiation defect accumulation kinetics under high fluencies
Kuzovkov, Vladimir N.; Kotomin, Eugene A.; Popov, Anatoli I.; Vila, Rafael (Elsevier B.V., 2020)Theory is developed for kinetics of the diffusion-controlled radiation defect accumulation in crystalline solids under high fluencies taking into account recently observed correlation between the defect diffusion energy ...