The Pro-CT AAPM phantom may be used for carrying out tests of computed tomography systems according to Report no. 1 of the AAPM (American Association of Physicists in Medicine).
Technical data (can be modified to customer specifications):
- PMMA water tank:
– inside cylinder diameter: 214mm
– outside cylinder diameter: 220mm
– lid has quick disconnect valves for ease of filling and draining
– aluminum alignment pin (6.3mm Ø x 76mm) or a polystyrene TLD insert (for dose measurements) can be attached to the lid
- low contrast section:
– placed at one end of the water tank
– 12 fillable cavities 40mm 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
- bone insert:
– PTFE annulus
– wall thickness 6.4mm, 70mm long
– fits over all inserts to harden the beam
- CT number linearity insert:
– five 25mm 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
- 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 5mm
– 0.2mm stainless steel wire positioned longitudinally for calculation of line-spread function
- slice thickness insert:
– three aluminum strips, 0.5mm thick and 25mm wide angled at 45°, positioned at the centre and aligned vertically
- 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 100mm long)
- triple low contrast insert (optional):
– contains three groups of low-contrast objects. In each group, there are rods of the same density, 20mm in height and with a diameter ranging from 2 to 15mm. Density difference between groups and surrounding material is exactly 0.3%, 0.6% i 1.0%
– made of PMMA
- filling tubes
- heavy duty carrying case (optional)
Product features:
- complies with:
– Report no. 1 of the AAPM (American Association of Physicists in Medicine)
– IEC 61223-3-5
– IEC 61223-2-6
- CE certified
- the Manual provides detailed guidelines for carrying out each test, results assessment and registration