"The word "direct" in direct digital radiology refers to the direct image registration in the detector, without the need for an intermediate cassette as in computed radiography. It should not be confused with the distinction between direct (x-rays to electrical charge) and indirect (x-rays to visible light through a scintillator, then visible light to electrical charge) conversion taking place inside the detector 1."
Expected headings
"Detector types"
"Flat panel detectors (FPDs)"
"Indirect conversion"
"Direct conversion"
"Other detectors"
"These are the most common detectors used in direct digital radiography. For more details see the main article on flat panel detectors. There are two primary methods of converting the x-rays into charges, either indirect or direct."