METHOD FOR PRODUCING ZINC OXIDE CRYSTAL, ZINC OXIDE CRYSTAL, SCINTILLATOR MATERIAL AND SCINTILLATOR DETECTOR

摘要

PROBLEM TO BE SOLVED: To provide a method for producing a zinc oxide crystal which has a short fluorescent lifetime, exhibits little in-plane variation, and can be used as a scintillator material, and to provide the zinc oxide crystal.SOLUTION: A zinc oxide crystal doped with an impurity is grown by a hydrothermal synthesis method or a flux method using a seed crystal 6 that is subjected to mirror finish. The mirror finish is composed of rough polishing with SiC, polishing with diamond abrasive grain, and mechanical polishing with buff and water. The impurity is indium and the doping amount thereof is 0.05 to 0.25 mol.