Pro-CT AAPM

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Nuclemed - click to enlarge Nuclemed - click to enlarge Nuclemed - click to enlarge

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

 

Pro-CT AAPM - 04-501