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METHOD FOR IDENTIFYING AND PROCESSING DETECTOR POLARIZATION IN PHOTON-COUNTING SPECTRAL X-RAY DETECTORS

机译:光子计数光谱X射线探测器中探测器极化的识别和处理方法

摘要

A computed tomography (CT) apparatus and a method for identifying photon-counting detectors that are polarized due to high flux, thereby rendering the photon-counting detector inoperable. The data obtained from the photon-counting detectors that are determined to be polarized is skipped during an image pre-reconstruction phase. The data is further assigned a weight of zero during an image reconstruction phase in order to avoid imaging artifacts in the reconstructed CT image.
机译:计算机断层摄影(CT)设备和用于识别由于高通量而偏振的光子计数检测器的方法,从而使光子计数检测器无法工作。在图像预重建阶段,跳过从被确定为偏振的光子计数检测器获得的数据。为了避免在重建的CT图像中成像伪像,在图像重建阶段还为数据分配了零的权重。

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