X-Ray tube cathode multiple polarization device and a radiation source incorporating such a device
US4559640A · kind A · utility
3Cited by
6References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 10, 1982 |
| Grant date | Dec 17, 1985 |
| Priority date | — |
| Expiry date | Jun 10, 2002 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J2235/068
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The invention relates to the polarization of a cathode of an X-ray tube by a high voltage cable comprising less conductors than the tube has polarization terminals. The missing voltages are processed by a device according to the invention, which comprises a voltage divider positioned between two of the voltages applied to the input terminals. It permits the use of standard long high voltage cables with limited stray capacitance without inducing dimensional control losses with respect to the tube foci. Application to multifocus X-ray sources.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.