Device and method for time-delayed integration on an x-ray detector composed of a plurality of detector modules
AssigneeFriedrich-Alexander-Universität Erlangen-Nürnberg
InventorsTristan Nowak, Willi A. Kalender, Harry Schilling
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Abstract
An X-ray detector for recording an image of an object that is moving relative to the detector includes a plurality of detector modules which are adjacently disposed so that they partially overlap. Using the detector modules, a TDI (Time Delayed Integration) is performed within each detector module. Subsequently an evaluation unit determines corrected measurement values of an overlap region by adding the measured values from the individual detector modules in the overlap region.
Claims8
X-ray detector for recording an image of an object moving relative to the detector, comprising at least two detector modules for detecting individual pixel values, which detector modules are disposed adjacently so that they partially overlap to form an overlap region, with the detector modules being adapted to perform a TDI (Time Delayed Integration) for which they shift pixel values along a direction of movement of the object in correspondence with a movement of the object with respect to the detector, wherein an evaluation unit is connected to the detector modules for determining corrected pixel values in the overlap region from pixel values of the detector modules.
Method for operating an X-ray detector comprising at least two adjacently disposed, partially overlapping detector modules for recording an image of an object that is moving relative to the detector, of the method comprising:
- a) performing a TDI (Time Delayed Integration) with a given number of integration steps;
- b) determining the pixel values of a region of overlapping by weighted addition of pixel values of a region of overlapping of the overlapping detector modules.
Dependencies are inferred from the claim text.