In digital radiography imaging, what does DEL stand for?

In digital radiography imaging, what does DEL stand for?

• A. Detector element
• B. Dynamic exposure line
• C. Data encoding layer
• D. Direct energy conversion

Answer: (A)

In digital radiography, DEL stands for detector element. The detector is made up of an array of these individual sensing units, each one acting as a tiny sensor that collects X-ray energy and starts the signal that becomes a pixel in the final image. Each detector element typically includes the conversion material (a scintillator in indirect systems or a direct-conversion layer like amorphous silicon/selenium) plus the photodetector and readout electronics. The size and arrangement of these elements determine image resolution and noise, since the image is formed from the signals of all the DELs. The other terms don’t describe the sensing unit of the detector, so DEL is the correct expansion.

In digital radiography, DEL stands for detector element. The detector is made up of an array of these individual sensing units, each one acting as a tiny sensor that collects X-ray energy and starts the signal that becomes a pixel in the final image. Each detector element typically includes the conversion material (a scintillator in indirect systems or a direct-conversion layer like amorphous silicon/selenium) plus the photodetector and readout electronics. The size and arrangement of these elements determine image resolution and noise, since the image is formed from the signals of all the DELs. The other terms don’t describe the sensing unit of the detector, so DEL is the correct expansion.