the principle that viewing a sloped surface at an angle reduces its apparent size. In an x-ray tube the angling of the anode results in the effective focal spot being smaller than the actual focal spot.
The Ceiling Tube Mount Crane is a radiographic X-ray tube suspension system designed to facilitate a wide range of procedures. Fully counter-balanced, the heavy-duty system moves easily throughout its entire range and minimizes operator fatigue. The Overhead Tube Crane is ideal for all radiographic, off-table and upright requirements.