Cascaded systems analysis of photon counting detectors
نویسندگان
چکیده
منابع مشابه
High Accuracy Calibration of Photon-Counting Detectors
We discuss a practical implementation of a photon-counting detector calibration using correlated photon pairs produced by parametric down-conversion. In this calibration scheme, the detection of a first photon triggers the measurement sequence aimed at detection of a second photon by a detector under test (DUT). We also describe measurements of radiant power with a photon-counting detector, whi...
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We are developing superconducting direct detectors (Single Quasiparticle Photon Counter, or SQPC) for submillimeter astronomy that could detect individual photons. These devices measure the quasiparticles generated breaking Cooper-pairs by photon absorption. This photoconductive type of device could yield high quantum efficiency, few s response times, and sensitivities in the range of 10 -20 W/...
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In this paper, we present a novel projection-based novel noise reduction method for photon counting energy resolving detectors in Spectral Computed Tomography (CT) imaging. In order to denoise the projection data, a guidance image from all energy channels is computed, which employs a variant of the joint bilateral filter to denoise each energy bin individually. The method is evaluated by a simu...
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ژورنال
عنوان ژورنال: Medical Physics
سال: 2014
ISSN: 0094-2405
DOI: 10.1118/1.4894733