Luminescence Properties of ZrO: Ti Ceramics Irradiated with Electrons and High-Energy Xe Ions.

Samples of ZrO ceramics with different concentrations of impurity titanium ions were synthesized by mixing zirconium and titanium oxide powders in different mass ratios. The X-ray diffraction analysis was used to determine the phase composition, lattice parameters, and crystallite size of the ceramics with varying dopant concentrations. Upon irradiation of the samples with 220 MeV Xe ions to a fluence of 10 ions/cm, a decrease in the intensity of the pulsed cathodoluminescence band at 2.

Effect of structural changes on luminescent and dosimetric properties of nanoscale aluminum oxide.

Variations of the particle size and porosity of the alumina ceramics synthesized by annealing compacted nanopowder at 1500-1700°С in vacuum for various periods of time have been studied by SEM. Particle size distributions, which depend on the conditions of the ceramics synthesis, were obtained and discussed. The formation of fine grains and the growth of their fraction with the increasing annealing temperature increase the thermoluminescence intensity and expands the usable dose range upwards.