Method for correcting a spatially resolved photon scan of an x-ray detector

A method for correcting a spatially resolved photon scan of an X-ray detector, comprising:

• generating in the X-ray detector, from an incident X-ray photon, a signal contribution of a first electrical signal in a spatially resolved manner, a reference value for the first electrical signal being defined by an absence of X-ray photons;
• selecting, for the first electrical signal, an upper threshold value above the reference value and selecting a lower threshold value below the reference value;
• first comparing the first electrical signal in a spatially resolved manner with the upper threshold value;
• generating, upon the first comparing indicating that the upper threshold value is exceeded, a signal contribution of a second electrical signal, spatially resolved;
• second comparing the first electrical signal, in a spatially resolved manner with the lower threshold value;
• generating, upon the second comparing indicating that the lower threshold value is undershot, a signal contribution of a correction signal;
• correcting the second electrical signal based upon the correction signal;
• and
• generating, based upon the second electrical signal corrected, an image data set.