The x-ray absorber typically used in direct capture DR is a ______.

Question

Quizplus · Accepted Answer

Photoconductors are the x-ray absorbers typically used in direct capture DR. They are usually made of amorphous selenium (a-Se) or amorphous silicon (a-Si) and work by converting the x-ray energy into electrical charges that can be read out by a thin-film transistor (TFT) array. Photodiodes and phototransistors are not typically used as x-ray absorbers in DR, and photoelectrons are not a viable option for direct capture imaging.

The X-Ray Absorber Typically Used in Direct Capture DR Is