X-ray - flat detector and method for controlling the of an x-ray tube to an x-ray - flat detector in the case of recording an x-ray image output image dose

摘要

X-ray - flat detector, with a scintillator (16), the incident x-rays (14) which converts into light, and a light converting layer (12) with detector elements, which the light from the scintillator (16) receiving and electrons for generating a image-data value of the detector elements, characterized in that the x-ray - flat detector at least one optical element (20, 20 '', 20 ", 36, 36'', 38, 40, 44) which comprises a proportion of the light from the scintillator (16) instead of to the detector elements to a photosensitive component (22, 22 '', 22") which, by the optical element (20, 20'', 20 ", 36, 36 '', 38, 40, 44) to the quantity of light directed measures.