Scintillator, scintillator array, radiation detector, and radiation examination device
US10132939B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Mar 6, 2017 |
| Grant date | Nov 20, 2018 |
| Priority date | — |
| Expiry date | Mar 30, 2037 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG21K4/00
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
To suppress a decrease in optical output of a scintillator. A scintillator includes a sintered body of 1 mm3 or less that contains a rare earth oxysulfide. In a composition image obtained by observing a cross-section of the sintered body under a scanning electron microscope, the sum of the number of oxide regions that contain at least one of a rare earth oxide different from the rare earth oxysulfide and an impurity metal oxide and the number of sulfide regions that contain at least one of a rare earth sulfide different from the rare earth oxysulfide and an impurity metal sulfide, which exist in a unit area of 500 μm×500 μm, is zero or more and five or less. Each of the oxide regions and the sulfide regions has a major axis of zero or more and 100 μm or less.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.