1) Most of the digital radiography system which are based on charge-coupled device (CCD) and amorphous silicon (a-Si) are indirect conversion type that uses scintillator to convert incident X-ray into visible light.
2) That means they need two-step process to get electronic signal for digital image and the image quality is significantly affected by scintillator.
3) MIC detector is direct conversion type. The X-ray irradiation which passed through the patient penetrates into the space between the electrodes and the gas filled in the camber is ionized to generate charges on the corresponding electrodes.
4) The induced charges are read directly by electronics.
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