PROPERTIES OF COMPACTS FROM BaF<sub>2</sub> NANO-POWDER OBTAINED BY PULSED ELECTRON BEAM EVAPORATION
In this work, a mesoporous crystalline BaF2 nanopowder with specific surface area (Sred)34,8 m2/g was obtained by evaporation of targets of a micron BaF powder (Sred = 0,38 m2/g) of optical purity with a pulsed electron beam. Textural and thermal features of BaF nanopowder (before and after annealing at 200 °C in air) and individual properties of compacts made from BaF nanopowder by pulsed magnetic pressing and static pressing are studied. By means of pulsed magnetic pressing in vacuum at a temperature of about 425 °C, vitreous, opaque compacts of black color, promising for use as scintillators and dosimeters, were obtained. The effect of pressing methods on the cathodoluminescence and photoluminescence characteristics of compacts from BaF is studied.