Patent ID: 6851854
Filing Date: 2005-02-08
Classification: A61B

Abstract:
1. An X-ray apparatus comprising: a radiation source which emits a radiation beam propagating along a propagation direction; at least one radiation filter insertable into said radiation beam, said radiation filter having a filter effect which alters said radiation beam; an area dose measuring device having a measurement chamber which emits measured signals by interacting with said radiation beam, and an evaluation device, at least said measurement chamber being disposed preceding said filter in said propagation direction; a recognition unit for interacting with said radiation filter when said radiation filter is disposed in said radiation beam to identify said radiation filter and which provides an identification signal to said evaluation device; and said evaluation device calculating an area dose product of said radiation beam dependent on said measured signals and correcting said area dose product with at least one filter-specific correction value dependent on the filter effect of the radiation filter identified by said recognition unit.