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/cm<SUP>2</SUP> Gd<SUB>2</SUB>O<SUB>2</SUB>S: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 PbI<SUB>2</SUB> photoconductive coatings.
Published Version
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