Abstract:Purpose: Spectroscopic x-ray detectors (SXDs) are poised to play a substantial role in the next generation of medical x-ray imaging. Evaluating the performance of SXDs in terms of the detective quantum efficiency (DQE) requires normalization of the frequency-dependent signal-to-noise ratio (SNR) by that of an ideal SXD. The purpose of this article is to provide mathematical expressions of the SNR of ideal SXDs for quantification and detection tasks and then to tabulate their numeric values for standardized tas… Show more
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