Patent ID: 8981313
Filing Date: 2015-03-17
Classification: G01T

Abstract:
1. A method for detecting x-ray quanta incident on a multi-pixel x-ray detector having a two-dimensional matrix composed of measurement-signal-generating pixels, wherein the multi-pixel x-ray detector is embodied as a direct solid-state detector, the method comprising: receiving measurement signals from at least some of the pixels, automatically identifying a subset of pixels that generate a measurement signal within a predefined time interval and which lie in a contiguous multi-pixel cluster, automatically assigning the identified subset of pixels in the contiguous multi-pixel cluster to an event cluster, determining at least one of a size and a share of the contiguous multi-pixel cluster, evaluating the at least one of a size and shape of the contiguous multi-pixel cluster, determining whether the measurement signals of the identified subset of pixels are valid or faulty based on the evaluation of the at least one of a size and a shape of the contiguous multi-pixel cluster, and if the measurement signals of the identified subset of pixels are determined as valid, approximating a position at which an x-ray quantum interacted with the multi-pixel x-ray detector based on the measurement signals of the identified subset of pixels.