Rare earth ceramic scintillator
US4525628A · kind A · utility
55Cited by
10References
8Claims
0Family size
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Key dates
| Filing date | Jun 18, 1982 |
| Grant date | Jun 25, 1985 |
| Priority date | — |
| Expiry date | Jun 18, 2002 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC04B2235/762
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
An improved scintillator for a solid state radiation detector useful in CT (computed tomography), DR (digital radiography), and related technologies. The scintillator, rather than being grown as a single crystal, is formed by means of hot pressing or sintering, as a polycrystalline ceramic. Rare earth oxides doped with rare earth activators are selected to yield a cubic crystal structure of high density and transmittance, which satisfies radiation detector requirements better than crystals utilized heretofore.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.