Scintillator compositions, and related processes and articles of manufacture
US7576329B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 20, 2005 |
| Grant date | Aug 18, 2009 |
| Priority date | — |
| Expiry date | Oct 28, 2026 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01T1/2023
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Scintillator materials based on certain types of halide-lanthanide matrix materials are described. In one embodiment, the matrix material contains a mixture of lanthanide halides, i.e., a solid solution of at least two of the halides, such as lanthanum chloride and lanthanum bromide. In another embodiment, the matrix material is based on lanthanum iodide alone, which must be substantially free of lanthanum oxyiodide. The scintillator materials, which can be in monocrystalline or polycrystalline form, also include an activator for the matrix material, e.g., cerium. To further improve the stopping power and the scintillating efficiency of these halide scintillators, the addition of bismuth is disclosed. Radiation detectors that use the scintillators are also described, as are related methods for detecting high-energy radiation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.