X-ray source with increased operating life
US8995622B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 18, 2011 |
| Grant date | Mar 31, 2015 |
| Priority date | — |
| Expiry date | Feb 11, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J35/186
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An x-ray source is described. During operation of the x-ray source, an electron source emits a beam of electrons. This beam of electrons is focused to a spot on a target by a magnetic focusing lens. In response to receiving the beam of focused electrons, the target provides a transmission source of x-rays. Moreover, a repositioning mechanism selectively repositions the beam of focused electrons to different locations on a surface of the target based on a feedback parameter associated with operation of the x-ray source. This feedback parameter may be based on: an intensity of the x-rays output by the x-ray source; a position of the x-rays output by the x-ray source; an elapsed time during operation of the x-ray source; a cross-sectional shape of the x-rays output by the x-ray source; and/or a spot size of the x-rays output by the x-ray source.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.