Patent ID: 8937286
Filing Date: 2015-01-20
Classification: C09K,G21K,H01J,Y10T

Abstract:
1. A solid scintillator comprising a rare earth oxide sintered body, wherein: an afterglow time, which is the time required for a light output from the solid scintillator to degrease from a maximum value to 1/e of the maximum value, is 200 ns or shorter, and the rare earth oxide sintered body has a composition represented by a following general formula (1): wherein Ln is one or more elements selected from Y, Gd and Lu; X is one or more elements selected from Si, Al and B; and a, b and c satisfy 1≦a≦5, 0.9≦b≦6, and 2.5≦c≦13, respectively.