Lutetium oxyorthosilicate scintillator having improved scintillation and optical properties and method of making the same
US8278624B2 · kind B2 · utility
20Cited by
4References
31Claims
0Family size
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Key dates
| Filing date | Aug 21, 2007 |
| Grant date | Oct 2, 2012 |
| Priority date | — |
| Expiry date | May 2, 2030 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC30B29/34
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
LSO scintillation crystals with improved scintillation and optical properties are achieved by controlled co-doping a LSO crystal melt with amounts of cerium and an additional codopant such as calcium or other divalent cations. Crystal growth atmosphere is optimized by controlling the amount of oxygen in the atmosphere. Zinc is added as an additional material to restabilize crystal growth where calcium co-dopant is added. The decay time of the scintillation crystal can be controlled by controlling the concentration of co-dopant added.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.