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 quantity
Last modified:06 January 2026 4.10 p.m.
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