Barium iodide and strontium iodide crystals and scintillators implementing the same
US9507032B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 7, 2013 |
| Grant date | Nov 29, 2016 |
| Priority date | — |
| Expiry date | Oct 27, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG21K4/00
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
In one embodiment, a material comprises a crystal comprising strontium iodide providing at least 50,000 photons per MeV, where the strontium iodide material is characterized by a volume not less than 1 cm3. In another embodiment, a scintillator optic includes europium-doped strontium iodide providing at least 50,000 photons per MeV, where the europium in the crystal is primarily Eu2+, and the europium is present in an amount greater than about 1.6%. A scintillator radiation detector in yet another embodiment includes a scintillator optic comprising SrI2 and BaI2, where a ratio of SrI2 to BaI2 is in a range of between 0:1 and 1.0, the scintillator optic is a crystal that provides at least 50,000 scintillation photons per MeV and energy resolution of less than about 5% at 662 keV, and the crystal has a volume of 1 cm3 or more; the scintillator optic contains more than about 2% europium.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.