Mitsubishi Chemical Corporation

Toshiaki Katayama

Keiji Yamahara

Koji Hazu

The present invention provides a gadolinium oxysulfide sintered body having a high light output. The problem is resolved by a gadolinium oxysulfide sintered body in which the ratio of the light transmittance Tof 410 nm to the light transmittance Tof 512 nm (T/T) is from 0.31 to 0.61, or a gadolinium oxysulfide sintered body in which the ratio of the diffraction peak intensity Iof a phase different from gadolinium oxysulfide appearing at 2&#x3b8;=from 20 to 29&#xb0; to the diffraction peak intensity (I) of (102) or (011) of gadolinium oxysulfide appearing at 2&#x3b8;=30&#xb0;&#xb1;1&#xb0; (I/I) is 0.1 or less in an XRD diffraction pattern and which contains one or more activators selected from the group consisting of praseodymium, terbium, and cerium.

Gadolinium oxysulfide sintered body, and scintillator, scintillator array, radiation detector, and radiation inspection apparatus including gadolinium oxysulfide sintered body

Growing community of inventors

Chiyoda-ku, Japan

Toshiaki Katayama