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- W2108278814 abstract "The authors have developed a system that performs both X-ray CT and SPECT using a single CdZnTe detector. Their prototype employs a 9.6/spl times/9.6-mm/sup 2/ CdZnTe detector with 1.5/spl times/1.5-mm/sup 2/ pixellated anodes configured as a 4/spl times/4 array. Pulse counting electronics with short shaping time (50 ns) are used to satisfy requirements for high photon rates in X-ray imaging, and to achieve response linearity up to 4/spl times/10/sup 5/ counts per second per detector element. The measured energy resolution at 140 keV is 10.4%. The authors have characterized system performance by imaging a radiographic resolution phantom and the Hoffman Brain phantom. The spatial resolutions of CT and SPECT are about 1 mm and 9 mm, respectively. The sensitivity per detector area of radionuclide imaging is about one-half of that of a conventional imager. The registration of images from these two modalities is intrinsic since the imaging geometry is identical." @default.
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- W2108278814 date "2002-11-11" @default.
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- W2108278814 title "Description of a prototype combined CT-SPECT system with a single CdZnTe detector" @default.
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- W2108278814 doi "https://doi.org/10.1109/nssmic.2000.949158" @default.
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