Light produced by incident x-ray exposure on a flat panel image receptor plate (FPIR) is captured by which component?

The light produced by incident x-ray exposure on a flat panel image receptor plate (FPIR) is captured by the thin film transistor (TFT) array. The TFT array plays a crucial role in digital radiography systems by converting the light emitted from the scintillator (which is a component that actually transforms x-rays into visible light) into an electrical signal.

Once the scintillator captures the x-ray photons and produces light, the TFT array detects this light and collects the resulting electrical signals pixel by pixel. This process enables the creation of a digital image that can be further processed by a computer for display, storage, or analysis.

The TFT effectively allows for efficient readout of the image data because it provides a method of addressing each pixel individually, offering better control over image acquisition and enhancing image quality. This technology is vital for the operation of flat panel detectors in modern imaging systems, making it clear why this component is where the captured light is processed.