Radiographic test pattern

Definition

A device designed to provide a test pattern appropriate for measuring, calibration, and quality control of radiographic and/or fluoroscopic systems and/or associated equipment (e.g., image intensifiers and video systems) during radiographic procedures. It typically consists of metallic screens (e.g., lead-foil, copper mesh, gold-nickel alloys) frequently sandwiched between two plastic plates; the choice of the pattern configuration, either linear or circular, and its other characteristics, depends on the particular measurement to be performed (e.g., focal spot size, resolution, modulation transfer function). The test pattern may be available in digital signal format (e.g., DVD).

GUDID devices

2

Last updated

2025-07-03 04:52:35