X-ray phosphor composition and x-ray intensifying screen employing same
US4054799A · kind A · utility
9Cited by
4References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 23, 1975 |
| Grant date | Oct 18, 1977 |
| Priority date | — |
| Expiry date | Oct 23, 1995 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09K11/7733
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A mixture of from 5% to 95% by weight of calcium tungstate and from 5% to 95% of europium activated barium fluorochloride exhibits brightness and x-ray absorption characteristics superior to that which would be predicted from the foregoing properties of the individual phosphors. Intensifying screens employing the above mixtures have a speed in excess of the commercially available intensifying screens using the present calcium tungstate x-ray phosphors.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.