Grid Types

Grids are manufactured in either a parallel or a focused design.

  • Parallel grids: Made with the lead and interspace strips running parallel to one another, never intersecting. Parallel grids function best at long as opposed to short SID, parallel grids are less commonly used.
  • Focused grids: Designed so that the central strips are parallel but as they move away from the central axis, they become more angled to match the divergence of the x-ray beam.