Detective Efficiency of Photon Counting Detectors with Spectral Degradation and Crosstalk.

08:00 EDT 30th October 2019 | BioPortfolio

Summary of "Detective Efficiency of Photon Counting Detectors with Spectral Degradation and Crosstalk."

Charge sharing and migration of scattered and fluorescence photons in an energy discriminating photon counting detector (PCD) degrade the detector's energy response and can cause a single incident photon to be registered as multiple events at different energies among neighboring pixels, leading to spatio-energetic correlation. Such a correlation in conventional linear, space-invariant imaging system can be usefully characterized by the frequency dependent detective quantum efficiency DQE(f). Defining and estimating DQE(f) for PCDs in a manner consistent with that of conventional detectors is complicated because the traditional definition of DQE(f) does not address spectral information.


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Name: Medical physics
ISSN: 2473-4209


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