Electron Density Phantom

For the calibration of Hounsfield Unit (HU) vs. electron density of CT radiotherapy treatment plans


  • D100 compatible
  • Calibration of radiation oncology treatment plans
  • For the opimization of the delivered dose to the patient
  • Provides realistic tissue simulation and values within the higher density range (bones)
  • Tissue-equivalent inserts are available separately


The Electron Density Phantom houses 5 different tissue-equivalent material inserts used for the HU to electron density calibration of CT scanners and radiation therapy treatment planning systems.

All tissue-equivalent materials represent the real human tissue with respect to physical density and electron density.

A new revised edition of the EDP provides tissue-equivalent realistic physical densities and electron densities of human tissues of highest interest in radiation oncology treatment planning.

The non-accordance of these values is a major shortcoming of other available electron density (or tissue-equivalent) phantoms.

The Electron Density Phantom is the first phantom to provide realistic tissue simulation and values in the higher density range (bone).




Electron Density Phantom, QRM-90110

  • Oval Body Phantom, Tissue, QRM-20115
  • Oval Body Phantom, CTwater, QRM-20116


Diameter: 100 mm
Height: 100 mm
Weight: 0.9 kg
Material: Water equivalent (CT water) app. 0 ± 5 HU (at 80 - 140 kV)
  Adipose (20 mm)
  Water (20 mm)
  Muscle (20 mm)
  Spongiouse Bone (20 mm)
  Cortical (Mandible) Bone (20 mm)
  Air (central insert, D = 30 mm)

Related Downloads

Electron Density Phantom ( 2 MB )
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