Transmission type X-ray tube
US6044130A · kind A · utility
45Cited by
1References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 10, 1998 |
| Grant date | Mar 28, 2000 |
| Priority date | — |
| Expiry date | Jul 10, 2018 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J2235/18
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A transmission type X-ray tube is provided with a ceramic stem fitted with cathode pins; an output window, the lower surface of which is deposited with a target metal; a ceramic bulb provided between the ceramic stem and the output window; and a focusing electrode provided along the inner surface of the ceramic bulb and which lower end is interposed between the upper surface of the ceramic stem portion and the lower end of the ceramic bulb. With this configuration, not only can the size of the X-ray tube be reduced, but mounting of the focusing electrode can also be made easier, thereby simplifying assembly operations.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.