CTDI Phantoms

With CIRS now part of Sun Nuclear, we are collaborating to provide optimal Quality Management solutions for Diagnostic Imaging and Radiation Therapy.

The CT Dose Phantoms, Model 007A, are no longer being manufactured or sold by CIRS. We are pleased to offer the following suitable alternative from Sun Nuclear.

Measure absorbed dose and monitor scanner output for Dose Index QA
Compliance Maintenence

The CTDI Phantom addresses specifications outlined by the FDA (FDA 21CFR 1020.33) and IEC (IEC 60601-2-44, IEC 61223-2-6 and IEC 61223-3-5IEC 60601-2-44).

Configurable to your needs

Offered as a 2-piece or 3-piece configuration, it includes nested modules to adapt the phantom to the size required by user protocol. The 2-piece configuration supports adult body and adult head/pediatric body sizes, and the 3-piece option offers an additional pediatric head size.

“The clever phantom and case design allows me to setup and tear down the phantom in 50% of the time compared to my previous CTDI phantom.”

-Nicholas Bevins, Ph.D., Henry Ford Hospital

  • TG-66 Compliance: CT Dose Index measurements recommended by AAPM Task Group 66
  • User-Friendly: Smart design supports fast and accurate setup
  • Central & Periphery Measurements: Allows dose measurements on the central axis of the phantom or at periphery positions
  • Custom Wheeled Case: Includes built-in wedges to hold and protect the phantom during transport

Product manufactured by Sun Nuclear; CIRS is now part of Sun Nuclear, a Mirion Medical company.

Data Sheet

CTDI Phantoms: Data Sheet


MaterialPolymethyl-Methacrylate (PMMA/Acrylic)
Density1.19 g/cm3
Alignment MarkingsEtched lines centered at the transverse, coronal and sagittal planes
ModuleDimensions (OD x Length)
Adult Body32 cm x 14.5 cm
Adult Head/Pediatric Body16 cm x 14.5 cm
Pediatric Head (Model 468-BHP only)10 cm x 14.5 cm
Weight19.9 kg (30.5 lbs)
Chamber Ports Diameter1.31 cm