Counting Digital X-Ray Detector and Method for Recording an X-Ray Image

A method for recording an x-ray image of an object with a counting digital x-ray detector, wherein the counting digital x-ray detector is assigned to an x-ray system with an x-ray source for emitting x-ray radiation, the method comprising:

• determining or interrogating at least one parameter of the x-ray system, the counting digital x-ray detector or a respective pixel element;
• activating, individually for each pixel element of a plurality of pixel element with two circuits, one of the two circuits individually or both of the two circuits simultaneously depending on a result of the determination of the at least one parameter;
• converting, pixel-by-pixel, the x-ray radiation passing through the object and striking the counting digital x-ray detector into electrical signals in the plurality of pixel elements;
• converting the electrical signals into count signals by the respective activated circuit or circuits of the plurality of pixel elements and storing the count signals;
• and
• reading out the count signals and creating one or more image datasets representing the object.

A counting digital x-ray detector for recording x-ray images of an object irradiated by x-ray radiation, the counting digital x-ray detector comprising:

• an x-ray converter for converting x-ray radiation into an electric signal and a matrix with a plurality of counting pixel elements,
• wherein at least a part of the counting pixel elements has a signal input and two circuits for converting the signal into a count signal in each case,
• wherein the first circuit is configured to convert the signal entering the respective pixel element directly into a count signal and to count the signal, and the second circuit is configured to convert the signal entering the respective pixel elements directly together with coincidently occurring signals of at least one neighboring pixel element into a count signal and to count the signal, and
• wherein the first circuit, the second circuit, or the first circuit and the second circuit are able to be activated individually, and the two circuits are able to be activated together.