Amorphous silicon pixel amplifier with /spl Delta/V/sub T/ compensation for low noise digital fluoroscopy

Abstract

The reported amorphous silicon (a-Si) pixel amplifier offers an improved signal-to-noise ratio compared to its traditional a-Si switch counterpart. Results from this research demonstrate that a-Si on-pixel amplifiers, coupled with a well established X-ray detection technology such as amorphous selenium, meet the minimum requirements for large area, real-time, low noise digital fluoroscopy.