X-ray tube
US7236569B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 1, 2005 |
| Grant date | Jun 26, 2007 |
| Priority date | — |
| Expiry date | Jul 26, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J35/16
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The invention improves an insulating performance of an X-ray tube without increasing an insulation size. An X-ray tube in accordance with the invention keeps a mechanical strength of a glass insulation material and improves an insulation withstand voltage by a concavity and convexity, by forming a concavity and convexity having an arithmetic mean surface roughness of JIS B0601-1994 equal to or more than 1.0 μm and equal to or less than 10 μm in a vacuum side surface of a glass insulation material supporting electric conductors within a vacuum chamber for a range equal to or more than 2 mm from a position in an end of the electric conductors.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.