The Pro-CT AAPM phantom can be used for carrying out tests of computed tomography systems according to Report no. 1 of the AAPM (American Association of Physicists in Medicine).
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PMMA water tank
- Inside cylinder diameter: 214 mm
- Outside cylinder diameter: 220 mm
- Lid has quick disconnect valves for ease of filling and draining
- Aluminum alignment pin (Ø6.3 mm x 76 mm) or a polystyrene TLD insert (for dose measurements) can be attached to the lid
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Low contrast section
- Placed at one end of the water tank
- 12 fillable cavities 40 mm deep
- Two pieces of each cavity with diameters: 25.4, 19.0, 12.7, 9.5, 6.4 and 3.2 mm
- Spaced twice their diameter apart from the centerline
- Cavities can be easily filled from the outside with dextrose or sodium chloride solutions of various concentrations
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Bone insert
- PTFE annulus
- Wall thickness 6.4 mm, 70 mm long
- Fits over all inserts to harden the beam
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CT number linearity insert
- Five 25 mm rods
- Material: polyethylene, PMMA (acrylic), polycarbonate, polystyrene and nylon
- Density values (g/cm³): 0.95, 1.19, 1.20, 1.05 and 1.1 respectively
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Resolution insert
- Eight sets / rows of air thru holes (five holes per set)
- Diameters of holes: 1.75, 1.5, 1.25, 1.00, 0.75, 0.61, 0.50 and 0.40 mm
- Distance between each hole is equal to the hole diameter
- Distance between rows 5 mm
- 0.2 mm stainless steel wire positioned longitudinally for calculation of line-spread function
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Slice thickness insert
- Three aluminum strips, 0.5 mm thick and 25 mm wide angled at 45°, positioned at the centre and aligned vertically
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Geometry insert (optional)
- Contains two pairs of aluminium wire ramps whose slope angle tangent is equal to 0.5
- Middles of ramps intersect on the same plane allowing for very precise evaluation of the slice location
- Contains two sets of four PMMA rods (Ø 10mm) placed in vertexes of two squares (sides 100 mm long)
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Triple low contrast insert (optional)
- Contains three groups of low-contrast objects. In each group, there are rods of the same density, 20 mm in height and with a diameter ranging from 2 to 15 mm. Density difference between groups and surrounding material is exactly 0.3%, 0.6% and 1.0%
- Made of PMMA
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- Filling tubes
- Optional heavy duty carrying case (04-502)
