X-ray apparatus has x-ray source pivotable around axis and detector co-operating with the x-ray source, where collimator is arranged between x-ray source and detector
Ein Röntgengerät (1) weist eine um eine Achse (A) verschwenkbare Röntgenquelle (2) und einen mit dieser zusammenwirkenden Detektor (3) auf, wobei zwischen der Röntgenquelle (2) und dem Detektor (3) ein Kollimator (7) angeordnet ist. Während der Verschwenkung der Röntgenquelle (2) wird, basierend auf vom Detektor (3) aufgenommenen Daten, mindestens ein geometrischer Parameter des Kollimators (7) variiert.The x-ray apparatus (1) has an x-ray source (2) pivotable around an axis (A) and a detector (3) co-operating with the x-ray source. A collimator (7) is arranged between the x-ray source and the detector. A collimator tracking unit (9) is formed to vary a geometrical parameter of the collimator during the pivoting of the x-ray source based on the data recorded from the detector. The geometrical parameters concern the position of the collimator. The x-ray source and the detector are formed for acquisition of three-dimensional image data. An independent claim is included for a method for operating an x-ray apparatus.