- The International Commission on Radiological Protection recommends using a nominal risk coefficient of 5% per sievert, which is increased threefold to account for the higher radiosensitivity of infants.
- All doses are expressed as dose equivalents in sieverts (Sv).
- The unit of this weighted dose is the sievert, Sv, and it is termed the equivalent dose.
- Radiation from a tiny particle of, say, plutonium is averaged over the entire body to give a dosage in units of (milli-) sieverts.
- The potential for radiation to cause biological damage is called the dose equivalent, which is measured in rems or sieverts, where 1 sievert equals 100 rems.