PHOSPHOR, RADIATION DETECTOR CONTAINING THE SAME, AND X-RAY CT APPARATUS

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专利权人:

发明人:

申请号：

EP01919967.8

公开号：

EP1279717B1

申请日:

2001.04.17

申请国别(地区):

EP

年份:

2016

代理人:

摘要：

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.

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