ZnO CERAMIC-BASED SCINTILLATION MATERIAL, METHOD FOR PRODUCTION THEREOF AND SCINTILLATOR Russian patent published in 2013 - IPC G01T1/20 

FIELD: physics.

SUBSTANCE: invention can be used to detect different types of ionising radiations, including alpha particles, in nuclear physics for exposure control and spectrometry of said radiations, in space engineering, medicine, in control devices and in industry. The invention enables to obtain scintillation material, which is a ZnO based ceramic containing dopants in form of Ce or LiF. The method of producing transparent doped scintillation ZnO ceramic involves cold pressing (briquetting) starting powder at pressure of 12-25 MPa, treating the briquette in a vacuum at temperature of 600-800°C, followed by uniaxial hot pressing at temperature of 900-1100°C and pressure of 100-200 MPa. The starting material contains ZnO doped with Ce in amount of 0.002-0.08 wt % or with LiF in amount of 0.004-0.1 wt %. The scintillator has a working body made of doped transparent ZnO ceramic in form of a plate, one of the bases of which receives ionising radiation and the other is connected to a photodetector, the working body providing fluorescence time of the fast component of not more than 100 ns.

EFFECT: improved transparency and kinetics of luminescence of the transparent scintillation ZnO ceramic.

5 cl, 4 dwg