The title: High Resolution Active Pixel Sensor X-Ray Detectors for Digital Breast Tomosynthesis by Chumin Zhao 2017
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The dissertation in the University of Michigan written in 2017 gives a detailed overview about the different existing and new technologies. Abstract: Current large area x-ray detectors for digital breast tomosynthesis (DBT) are based on the amorphous silicon (a-Si:H) passive pixel sensor (PPS) technology. However, PPS detectors suffer from a limited resolution and high electronic noise. In this dissertation, we propose high resolution large area active pixel sensor (APS) x-ray detectors based on the complementary metal-oxide-semiconductor (CMOS) and amorphous In-Sn-Zn-O (a-ITZO) thin-film transistor (TFT) technologies to improve the imager resolution and noise properties. © Chumin Zhao 2017
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