Method for correcting aberrations of an X-ray image intensifier system and associated X-ray image intensifier system

摘要

A method for correcting aberrations, in particular distortions, in an X-ray image intensifier system (2) comprising an image converter tube (4) for converting incident X-radiation into visible light and a digital camera system (14) optically connected downstream of the image converter tube (4) Camera system (14) has an image sensor (12) for converting the incident visible light into digital images and wherein an electronic image processing unit (16) is provided for post-processing of the digital images should be particularly simple and inexpensive to implement with high reliability. This object is achieved according to the invention by determining characteristic data of a magnetic field present in the image converter tube (4) with the aid of a magnetic field probe (18) arranged in the image converter tube (4) or in its surroundings; - from the determined characteristic data from the presence of the magnetic field resulting image error is determined on the basis of determining one or more parameters of a correction image leading to the correction of the aberration and - the correction image thus determined in the electronic image processing unit (16) is applied to the digital images.