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AssigneeSiemens Aktiengesellschaft
InventorsMario Eichenseer, Steffen Kappler, Edgar Kraft, Björn Kreisler, Daniel Niederlöhner, Stefan Wirth
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A method is disclosed for energy calibrating quantum-counting x-ray detectors in an x-ray installation including at least two x-ray systems turnable around a center of rotation. A target, for producing x-ray fluorescence radiation, is positioned between the first x-ray source and first x-ray detector and irradiated with x-radiation of the first x-ray source in such a way that x-ray fluorescence radiation which strikes the second x-ray detector from the target is produced by the x-radiation of the first x-ray source. The second x-ray detector is then energy calibrated by way of the x-ray fluorescence radiation of the target. The first x-ray detector can be energy calibrated in the same way with the aid of the x-radiation of the second x-ray source. With the proposed method, the x-ray detectors of a dual-source CT x-ray installation can be calibrated with little expenditure under conditions close to those of the system.
A method for energy calibrating quantum-counting x-ray detectors in an x-ray installation including at least two x-ray systems that can be turned around a center of rotation and are arranged including a mutual angular offset in a direction of rotation and of which a first x-ray system includes a first x-ray source and an opposing first x-ray detector and a second x-ray system includes a second x-ray source and a second opposing x-ray detector, the method comprising:
Dependencies are inferred from the claim text.