Input screen scintillator for an X-ray image intensifier tube and manufacturing process of this scintillator
US4980561A · kind A · utility
6Cited by
3References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 10, 1989 |
| Grant date | Dec 25, 1990 |
| Priority date | — |
| Expiry date | Jan 10, 2009 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J29/385
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The invention concerns an input screen scintillator for an X-ray image intensifier tube. This tube comprises light-conductive cesium iodide needles formed on an electrically conductive substrate. According to the invention, each needle is entirely coated with a material such as a metal or a semiconductor which reflects the light travelling within the needles and allows an identical potential level in the coating material as in the substrate towards the inside of said needles. The coating can enhance the efficiency and resolution of image intensifier tubes. The invention has applications in the field of X-ray imagery.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.