Process for the control of the position of the focus of an X-ray tube and control apparatus performing said process
US4675892A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 17, 1985 |
| Grant date | Jun 23, 1987 |
| Priority date | — |
| Expiry date | May 17, 2005 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05G1/26
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
The invention relates to a process for the controlling of the position of the focus of an X-ray tube, a applicable to the monitoring of X-ray equipment equipped with X-ray tubes and to the installation of the latter in shields. The invention also relates to a control apparatus for performing the above process. According to the process of the invention, the image of the focus of an X-ray tube is produced on two X-radiation sensitive, contiguous detector means. Each of the detector means supplied an output signal, whose amplitude is a function of the distribution of said image of said detector means. The output signals are applied to a comparison means, which supplies a difference signal linked with the position of the focus along a first given axis.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.