Rare-earth oxyorthosilicate scintillator crystals and method of making rare-earth oxyorthosilicate scintillator crystals
US8394195B2 · kind B2 · utility
16Cited by
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15Claims
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Key dates
| Filing date | Jan 27, 2012 |
| Grant date | Mar 12, 2013 |
| Priority date | — |
| Expiry date | Jan 27, 2032 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC30B15/04
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A method of making LSO scintillators with high light yield and short decay times is disclosed. In one arrangement, the method includes codoping LSO with cerium and another dopant from the IIA or IIB group of the periodic table of elements. The doping levels are chosen to tune the decay time of scintillation pulse within a broader range (between about ˜30 ns up to about ˜50 ns) than reported in the literature, with improved light yield and uniformity. In another arrangement, relative concentrations of dopants are chosen to achieve the desired light yield and decay time while ensuring crystal growth stability.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.