| 简介 |
PROBLEM TO BE SOLVED : To provide a crystal material having short fluorescence lifetime and a manufacturing method therefor, a radiation detector, an imaging device, and a nondestructive detection device using the crystal material.
SOLUTION : A crystal material is constituted by (RExLn1-x-s-tAsMt)2Si2O7 having a pyrochlore type structure. In the above described formula, Ln contains at least one or more kind selected from Gd and Y, RE contains at least one kind selected from Ce, Pr, Nd, Eu, Tb and Yb, 0
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