Digital radiographic imaging apparatus

摘要

A light sensing array has a plurality of electrically isolated photosensors, each photosensor having a first terminal and a second terminal, each of the terminals of each photosensor being isolated from the terminals of the other phlotosensors, wherein each photosensor responds to an incident light level by producing a charge difference between the first and second terminal. There is a differential circuit selectively coupled to the first and second terminals of one of the photosensors for producing an output signal related to the charge difference between the first and second terminals.