Fluoro 4 & Fluoro 4-L

FLUORO-4 has been designed in accordance with the DIN 6868-4 standard and
features the following test details:

• Tube axis direction markings
• Limiting spatial resolution (0.6 – 5.0 LP/mm)
• Low contrast resolution details
  (8 x 10mm diameter details, depths 0.4 – 4.0 mm)
• Dynamic range (17 different thickness
• Cu steps each with a central 4.0mm
  diameter detail, depth 2.5 mm)
• kV test-area (Yb 0.78mm)
• Unstructured inner area (centremarked)
• Radiopaque numbers indicating
  dynamic range steps