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CN106459758A 发光体及辐射探测器 无效 - 撤回

发光体及辐射探测器
摘要：
本发明提供一种荧光寿命短、透明度高、且发光量大的发光体及使用有该发光体的辐射探测器。还提供一种适宜于γ射线、X射线、α射线、中子射线这样的辐射探测器用发光体的、抗辐射性高、荧光衰减时间短且发光强度大的发光体及使用有该发光体的辐射探测器。一种具有使用有Ce3+的4f5d能级的发光的石榴石结构的发光体，所述发光体相对于具有以通式CexRE3-xM5+yO12+3y/2所表示的石榴石结构的发光体，含有相对于全部阳离子以7000ppm以下的摩尔比共掺杂有至少一种以上的一价或二价阳离子的石榴石发光体，式中，0.0001≤x≤0.3、0≤y≤0.5或0≤y≤-0.5、M为选自Al、Lu、Ga、Sc的一种或两种以上，及RE为选自La、Pr、Gd、Tb、Yb、Y、Lu的一种或两种以上。
摘要（英）：

To provide an illuminant for which fluorescence life is short, transparency is high, and luminescence is high, and a radiation detector using the illuminant. Further, to provide an illuminant which is suitable as an illuminant for a radiation detector for gamma rays, x-rays, alpha-rays, and neutron rays, and for which radiation resistance is high, fluorescence attenuating time is short, and fluorescence strength is high, and a radiation detector that uses such illuminant. Provided is an illuminant that has a garnet structure that uses Ce3+ luminescence of a 4f5d level. The illuminant has a garnet structure represented by general formula CexRE3-xM5+yO12+3y/2 (where, 0.0001<=x<=0.3, 0<=y<=0.5 or 0<=y<=-0.5; M is at least one selected from Al, Lu, Ga, and Sc; and RE is at least one selected from La, Pr, Gd, Tb, Yb, Y, and Lu), and the illuminant includes a garnet illuminant in which at least one type of monovalent or divalent cation is co-doped at a molar ratio of no more than 7000ppm with respect to total cations.

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