Method for the use of an X-ray image intensifier tube and circuit for the implementation of the method
US5656808A · kind A · utility
3Cited by
10References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 19, 1995 |
| Grant date | Aug 12, 1997 |
| Priority date | — |
| Expiry date | Jul 19, 2015 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05G1/64
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Disclosed is a method for the use of an X-ray image amplifier tube comprising a succession of electrodes, among them a photocathode. This X-ray image intensifier tube may have, alternately, an off state and an operating state. The method consists of the application, to the photocathode, of an operating voltage that is a substantially zero voltage when the X-ray image intensifier tube is in an operating state and a positive turning-off voltage greater than the operating voltage so that the X-ray image intensifier tube is in the off state. Application is notably to X-ray image intensifier tubes used in sets that work alternately.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.