Process of preparing tantalate X-ray intensifying phosphors with decreased delayed fluorescence
US5611960A · kind A · utility
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20Claims
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Key dates
| Filing date | Mar 28, 1996 |
| Grant date | Mar 18, 1997 |
| Priority date | — |
| Expiry date | Mar 28, 2016 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09K11/7701
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
The delayed fluorescence observable with tantalate phosphors is decreased by the use of a flux composition consisting essentially of 2-95% by weight KCl, 5-98% by weight of at least one lithium salt chosen from a group consisting of LiCl and Li.sub.2 SO.sub.4 and 0-50% by weight of SrCl.sub.2.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.