ICRU sphere

ICRU sphere

ICRU sphere
The ICRU-sphere is a phantom used in radiation protection. It has a diameter of 30 cm, a volume of about 14 liters, and a hypothetical "tissue equivalent" composition as given in the table below.

element mass fraction (%)
oxygen 76.2
carbon 11.1
hydrogen 10.1
nitrogen 2.6

Related concepts

  • ICRU anthropomorphic phantom
  • ICRU slab
  • reference man

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