Rare earth oxyorthosilicate scintillation crystals
US9428843B2 · kind B2 · utility
8Cited by
3References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 28, 2014 |
| Grant date | Aug 30, 2016 |
| Priority date | — |
| Expiry date | Jul 20, 2034 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC30B33/08
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
The use of the effect of crystallographic axis orientation on the effectiveness in annealing in multiple atmospheres and chemical compositions of lutetium oxyorthosilicate crystals and other scintillator crystals is disclosed. By controlling axis orientation an favorable annealing condition can be selected to repair both internal interstitial and vacancy defects through the crystal lattice. Axis orientation can be further utilized to control the uniformity of surface finish of chemically etched crystal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.