Patent ID: 7266177

Claim:
A method of generating an x-ray image, comprising: providing an x-ray source; providing a semiconductor detector comprising a plurality of detector elements and arranged opposite the x-ray source; irradiating a body under examination with x-rays originating from the x-ray source having a prescribed first dose rate, the first dose rate applied during a first time interval; acquiring a first plurality of image signals by at least one part of the detector elements; wherein the at least one part of the detector elements has a prescribed geometric arrangement of the respective detector elements; said prescribed geometric arrangement comprising an outline of a rectangle or circle, or a crossed line, or a combination thereof; calculating a second dose rate required for generating an x-ray image, the calculation based on the acquired first plurality of signals; determining at least one setting parameter for adjusting the x-ray source to emit the calculated second dose rate; irradiating the body with x-rays originating from the x-ray source and having the second dose rate, the second dose rate generated by the x-ray source set to the setting parameter and applied during a second time interval; acquiring a second plurality of image signals by the semiconductor detector; and generating the x-ray image from the acquired second plurality of image signals.