EFFECT OF ELECTRON IRRADIATION CONDITIONS ON THE EFFICIENCY OF DEFECT FORMATION IN MgAl2 O4 SPINEL

Abstract

The efficiency of defect formation in spinel ceramics of magnesium aluminate (MgAl2O4) under electron irradiation has been determined. A strong effect of cooling on the concentration of residual defects was revealed. When using electrons with energies above the giant dipole resonance for Mg, Al, O and cooling the sample with an air-blown aluminum radiator, a total increase in the efficiency of F-center formation by a factor of 4.3 was obtained. PACS: 61.72.jn; 61.80.Fe. © 2022, National Science Center, Kharkov Institute of Physics and Technology. All rights reserved.