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TRANSPARENT CERAMIC GARNET SCINTILLATOR DETECTOR FOR POSITRON EMISSION TOMOGRAPHY 发明申请

2023-05-27 1830 1338K 0

专利信息

申请日期 2025-06-27 申请号 KR1020217037863
公开(公告)号 KR1020210145838A 公开(公告)日 2021-12-02
公开国别 KR 申请人省市代码 全国
申请人 L LIVERMORE NAT SECURITY LLC; SIEMENS MEDICAL SOLUTIONS USA INC
简介 In one embodiment, a method includes forming a powder having a composition with the formula : AhBiCjO12, where h is 3±10%, i is 2±10%, j is 3±10%, A includes one or more rare earth elements, B includes aluminum and/or gallium, and C includes aluminum and/or gallium. The method additionally includes consolidating the powder to form an optically transparent ceramic, and applying at least one thermodynamic process condition during the consolidating to reduce oxygen and/or thermodynamically reversible defects in the ceramic. In another embodiment, a scintillator includes (Gd3-a-cYa)x(Ga5-bAlb)yO12Dc, where a is from about 0.05-2, b is from about 1-3, x is from about 2.8-3.2, y is from about 4.8-5.2, c is from about 0.003-0.3, and D is a dopant, and where the scintillator is an optically transparent ceramic scintillator having physical characteristics of being formed from a ceramic powder consolidated in oxidizing atmospheres.


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