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28 June 2001 Evaluation of direct detection and indirect detection active matrix flat-panel imagers (AMFPIs) for digital mammography
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Abstract
Initial results from an examination of the performance of small-area, high-spatial-resolution, active matrix, flat- panel imager prototypes, under conditions relevant to mammographic imaging, are reported. These prototypes are based on two 512 X 512 pixel designs: (1) a 75 micrometers pitch indirect-detection array incorporating a continuous photodiode surface operated with a 34 mg/cm2 Gd2O2S:Tb phosphor screen and with a 150 micrometers thick structured CsI(Tl) scintillator on a fiber-optic plate (which was designed to provide high spatial resolution at the expense of light output); and (2) two 100 micrometers pitch direct-detection arrays with approximately 47 micrometers and approximately 100 micrometers thick PbI2 photoconductive coatings.
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Kyung-Wook Jee, Larry E. Antonuk, Youcef El-Mohri, Manat Maolinbay, and Qihua Zhao "Evaluation of direct detection and indirect detection active matrix flat-panel imagers (AMFPIs) for digital mammography", Proc. SPIE 4320, Medical Imaging 2001: Physics of Medical Imaging, (28 June 2001); https://doi.org/10.1117/12.430879
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