SCINTILLATOR MATERIAL, METHOD FOR MANUFACTURING THE SAME, AND IONIZING RADIATION DETECTOR

摘要

PROBLEM TO BE SOLVED: To provide a method for improving light emitting intensity of a zinc oxide which has short fluorescent life, whose manufacturing cost is low and which is chemically stable and which is a promising material as a scintillator material for a next-generation PET.

SOLUTION: Light emitting intensity of exciton light emission having the short fluorescent life by reduction of self-absorption is improved by doping a dopant such as Sb and Bi having a deep donor level or doping a plurality of dopants of a donor and an acceptor in the zinc oxide. The zinc oxide is manufactured by preparing dopant substance in a starting raw material by an LPE (liquid phase thin film epitaxial growth) method or hydrothermal synthesis method.

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