The digital image receptor is comprised of small elements called

The digital image receptor is comprised of small elements called

• A. Detector elements (DELs)
• B. Display monitor matrix
• C. Voxels
• D. Pixels

Answer: (A)

The key idea is that the digital image receptor uses tiny sensing units called detector elements. Each detector element, or DEL, collects X-ray energy and converts it into an electrical signal. When many DELs are arranged in a grid, they sample the X-ray exposure across the image, and that collection of signals is what gets turned into the digital image. On the display side, the image is shown as a matrix of pixels, with each pixel representing the value from its corresponding detector element. Voxels pertain to three-dimensional imaging like CT, not the 2D receptor in standard radiography, and a display monitor matrix refers to the grid of pixels on the screen rather than the sensing elements in the receptor.

The key idea is that the digital image receptor uses tiny sensing units called detector elements. Each detector element, or DEL, collects X-ray energy and converts it into an electrical signal. When many DELs are arranged in a grid, they sample the X-ray exposure across the image, and that collection of signals is what gets turned into the digital image. On the display side, the image is shown as a matrix of pixels, with each pixel representing the value from its corresponding detector element. Voxels pertain to three-dimensional imaging like CT, not the 2D receptor in standard radiography, and a display monitor matrix refers to the grid of pixels on the screen rather than the sensing elements in the receptor.