Air cooled end-window metal-ceramic X-ray tube for lower power XRF applications
US6075839A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Sep 2, 1997 |
| Grant date | Jun 13, 2000 |
| Priority date | — |
| Expiry date | Sep 2, 2017 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J2235/1287
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An X-ray tube device and a method for construction thereof which provides the cathode assembly and the anode assembly in a nose of the X-ray tube, wherein an emitter face of each assembly is directed toward an X-ray emission end thereof. The electrons emitted from the cathode assembly travel along a path outward until striking the anode assembly which then generates the X-rays which are directed toward a beryllium window in the X-ray tube. This advantageous structure enables the anode-to-window distance to be small, resulting in a large X-ray flux towards a sample. Furthermore, the small nose of the X-ray tube enables a fluorescence detector to be positioned in an optimal location because the X-ray tube's shape does not displace the fluorescence detector.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.