GARNET SCINTILLATOR SOLEGATED WITH A MONOVALENT ION Russian patent published in 2023 - IPC C09K11/78 C09K11/80 C09K11/55 G01T1/10 G01T1/20 

FIELD: chemical industry.

SUBSTANCE: invention can be used in the manufacture of scintillation materials for the detection of x-ray, gamma, neutron, cosmic radiation and/or particles having an energy of 1 keV or more. Praseodymium (Pr) doped lutetium yttrium aluminum garnet (LuYAG) is produced in the presence of a monovalent sodopant ion, which is an alkali metal ion. The resulting scintillation material is (Lu0.75,Y0.25)₃Al₅O₁₂:0.4% Pr³⁺, co-doped with 0,2% Li⁺; (Lu0.75,Y0.25)₃Al₅O₁₂:0.4% Pr³⁺, co-doped with 0.8% Li⁺; (Lu0.75,Y0.25)₃Al₅O₁₂:0.4% Pr³⁺, co-doped with 2.0% Li⁺; (Lu0.75,Y0.25)₃Al₅O₁₂:1.2% Pr³⁺, co-doped with 0.308 at.% Na⁺; (Lu0.75,Y0.25)₃Al₅O₁₂:1.2% Pr³⁺, co-doped with 0.6 at.% Li⁺; (Lu0.75,Y0.25)₃Al₅O₁₂:1.2% Pr³⁺, co-doped with 0.6 at.% K⁺; (Lu0.75,Y0.25)₃Al₅O₁₂:1.2% Pr³⁺, co-doped with 2.4 at.% Li⁺; and (Lu0.75,Y0.25)₃Al₅O₁₂:1.2% Pr³⁺, co-doped with 6 at.% Li⁺. The radiation detector contains one of the specified scintillation materials and a photon detector.

EFFECT: invention makes it possible to change the scintillation and/or optical properties of the scintillation material in such a way as to increase its light output, improve the energy resolution and reduce the decay time of the scintillation.

4 cl, 10 dwg, 3 tbl, 3 ex