Filter arrangement for an x-ray apparatus
US4347440A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jul 9, 1980 |
| Grant date | Aug 31, 1982 |
| Priority date | — |
| Expiry date | Jul 9, 2000 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG21K1/10
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
The filter arrangement for an X-ray apparatus contains an X-ray source for emitting a diverging beam of X-rays and a filter plate positioned in the beam of X-rays. The beam is symmetrical with respect to a center beam axis. The filter plate which serves for attenuation of the X-rays before they impinge on a target is mounted on a pivoting axis. The pivoting axis is preferably arranged remote from and transverse to the center beam axis. By pivoting the filter plate about the pivoting axis into a selected position, a selected radiation profile can be obtained on the target. The rotatable filter plate can thus replace a plurality of wedge filters.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.