Use of codoping to modify the scintillation properties of inorganic scintillators doped with trivalent activators
US8617422B2 · kind B2 · utility
54Cited by
4References
15Claims
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Key dates
| Filing date | Sep 28, 2009 |
| Grant date | Dec 31, 2013 |
| Priority date | — |
| Expiry date | Mar 2, 2030 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC30B15/00
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
Crystals with improved scintillation and optical properties are achieved by codoping with a trivalent dopant and a divalent and/or a monovalent dopant. Embodiments include codoping LSO, YSO, GSO crystals and LYSO, LGSO, and LYGSO crystals. Embodiments also include codoped crystals with a controlled monovalent or divalent:trivalent dopant ratio of from about 1:1 for increased light yield to about 4:1 for faster decay time.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.