发明名称 |
PHOSPHOR, RADIATION DETECTOR CONTAINING THE SAME, AND X-RAY CT APPARATUS |
摘要 |
<p>A novel phosphor represented by the general formula (Gd1-y-zCeyScz)3Al5-dGadO12 (wherein y, z and d are values falling in the ranges of 0.0005≤y≤0.05, 0 < z≤0.03 and 0 < d < 5) is provided by adding scandium (Sc) to a phosphor represented by the general formula of (Gd1-yCey)3Al5-dGadO12 (wherein y and d are values falling in the ranges of 0.0005≤y≤0.02 and 0 < d < 5). The phosphor has a high luminous efficiency and a very small afterglow. A radiation detector using this phosphor as ceramic scintillator is capable of obtaining a high luminous output and suitable for a radiation detector of X-ray CT because of its high luminous output and a very small afterglow.</p> |
申请公布号 |
EP1279717(A1) |
申请公布日期 |
2003.01.29 |
申请号 |
EP20010919967 |
申请日期 |
2001.04.17 |
申请人 |
HITACHI MEDICAL CORPORATION |
发明人 |
YAMADA, HIROMICHI;KANAI, TSUNEYUKI;KOBIKI, TAKAAKI;MIURA, ICHIRO;SATO, MAKOTO;YOSHIDA, MINORU |
分类号 |
G21K5/02;A61B6/03;C09K11/00;C09K11/77;C09K11/80;G01T1/202;(IPC1-7):C09K11/80;G01T1/20 |
主分类号 |
G21K5/02 |
代理机构 |
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代理人 |
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