The conversion of amorphous selenium flat panel detectors is relatively straightforward, that is, through semiconductors, the received X-rays are directly converted into electrical signals, and then the electrical signals are digitized and imaged by imaging software. We won’t talk about the specific imaging principle, let’s continue to talk about the advantages and disadvantages of amorphous selenium flat panel detectors.
First of all, the conversion efficiency of the amorphous selenium flat panel detector is relatively high, the dynamic range is very wide, the spatial resolution is also high, the imaging definition is high, and the image sharpness is high.
However, the X-ray efficiency of amorphous selenium is relatively low, so the final imaging quality is not very good at lower doses. In addition, the selenium layer is more sensitive to temperature, and its environmental applicability is not very good.