The CT AAPM Phantom is a modular QA device designed to perform all CT quality control tests in accordance with AAPM Report No. 1.
Constructed from PMMA (water-equivalent material), it features a fillable tank with quick-disconnect valves and interchangeable inserts covering all performance parameters.
Integrated modules include:
- Low contrast section (12 cavities with variable diameters and densities)
- CT number linearity (5 rods of different materials: PE, PMMA, polycarbonate, polystyrene, nylon)
- Spatial resolution module (air holes of varying diameters)
- Slice thickness ramps (three aluminum strips angled 45°)
- Optional geometry section (ramps, wires and alignment inserts)
- Triple low-contrast module (for subtle contrast detectability).
The CT AAPM Phantom complies with IEC 61223-3-5 and IEC 61223-2-6, ensuring conformity for constancy and acceptance testing in medical CT systems.
Specifications
• Inner diameter: 214 mm – outer diameter: 220 mm
• Quick valve lid for filling and draining
• Alignment: 6.3 mm × 76 mm aluminum pin or polystyrene TLD insert
• Low contrast section: 12 holes (Ø 25.4 / 19.0 / 12.7 / 9.5 / 6.4 / 3.2 mm; two of each)
• Linearity rods: 5 × 25 mm (PE, PMMA, polycarbonate, polystyrene, nylon; densities 0.95 – 1.20 g/cm³)
• Resolution module: 8 rows × 5 holes each; Ø 1.75 → 0.40 mm; spacing = diameter
• Stainless steel wire 0.2 mm for line profile measurements
• Slice thickness: 3 × 0.5 mm aluminum ramps (25 mm wide at 45°)
• Optional geometry module: ramps, wires, alignment inserts
• Triple low-contrast module: rods 2–15 mm Ø (Δρ 0.3 %, 0.6 %, 1.0 %)
• Materials: PMMA, polyethylene, polycarbonate, polystyrene, nylon
• Standards: AAPM Report No. 1, IEC 61223-3-5, IEC 61223-2-6
Models
- 04-501 - CT AAPM Phantom
