CTDI Phantoms

CTDI Phantoms

Gain greater efficiency for a key part of your CT quality assurance program.

  • Measure absorbed dose and monitor scanner output
  • New, easy-to-use design available in two models

Computed Tomography Dose Index (CTDI) is a key part of your CT quality assurance program.

The CTDI Phantom was designed to meet specifications outlined by the Food and Drug Administration (FDA 21CFR 1020.33) and the International Electrotechnical Commission (IEC 60601-2-44).

The phantom is offered as a 2-piece (model 468-BH) or 3-piece (model 468-BHP) telescopic configuration, with each configuration consisting of nested modules, allowing the user to adapt the phantom to the desired size required by the protocol in use.

Each module allows the user to collect dose measurements on the central axis of the phantom or at periphery positions located every 90 degrees at 1.0-cm depth from the surface.



Material: Polymethyl-Methacrylate (PMMA/Acrylic)
Density: 1.19 g/cm3
Alignment Markings: Etched lines centered at the transverse, coronal
and sagittal planes
Module: Dimensions (OD x Length)
Adult Body: 32 cm x 14.5 cm
Adult Head/Pediatric Body: 16 cm x 14.5 cm
Pediatric Head (Model 468-BHP only): 10 cm x 14.5 cm
Weight : 19.9 kg (30.5 lbs)
Chamber Ports Diameter: 1.31 cm


Includes customized, water-tight hard case for easy transport & safe storage. Case includes built-in wedges for use as a phantom holder.