MIXED OXIDE MATERIALS Russian patent published in 2018 - IPC C09K11/78 C09K11/80 C09K11/82 G01T1/20 A61B6/03 

FIELD: chemistry.

SUBSTANCE: invention can be used in ionizing radiation detectors and CT scanners. First, mixing Y₂O₃, CeO₂, Tb₄O₇, Al₂O₃ and Ga₂O₃, impregnating one or more of them with a source of V. Then, they are dispersed to form a slurry which is dried to form a mixed powder. After that, the resulting powder is sintered at a temperature of not less than 1,400 °C for at least 1 hour. In the method, the scintillator comprises a single crystal or polycrystalline mixed oxide material of the formula (Y_wTb_x)₃Al_5-yGa_yO₁₂:Ce_z, where 0.01≤ w≤0.99, 0.01≤x≤0.99, 0≤y≤3.5 and 0.001≤z≤0.10; w+x+3×z=1, wherein the mixed oxide material is doped with at least 10  illion^-1 V.

EFFECT: resulting material is characterized by an increased light output and transparency for visible light, as well as reduced afterglow.

12 cl, 4 dwg, 4 tbl, 4 ex