Emission surface for an X-ray device
US9251987B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 14, 2012 |
| Grant date | Feb 2, 2016 |
| Priority date | — |
| Expiry date | Jul 12, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J2235/1212
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Embodiments of the disclosure relate to electron emitters for use in conjunction with X-ray devices. In one embodiment, the emitter features a round emission area capable of emitting electrons when heated, wherein the round emission area comprises at least one of a gap, a channel, or a combination thereof that separates a first portion of the round emission area from a second portion of the round emission area and permits thermal expansion of the first portion and the second portion within the at least one gap or channel without permitting the first portion and the second portion to touch one another. The two electrically conductive legs coupled to the surface at respective locations outside the round emission area and that are capable of supplying current to the round emission area.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.