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: | 10 April 2024 10.43 a.m. |
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