Terbium-activated rare earth oxysulfide X-ray phosphors
US3974389A · kind A · utility
43Cited by
3References
8Claims
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Key dates
| Filing date | Nov 20, 1974 |
| Grant date | Aug 10, 1976 |
| Priority date | — |
| Expiry date | Nov 20, 1994 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01T1/1641
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Terbium-activated rare-earth oxysulfide X-ray phosphors containing small amounts of cerium exhibit shorter decay times than the same materials without cerium. X-ray intensifying screens employing such phosphors enable improved resolution.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.