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Annual limit on intake

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Committed dose
The committed dose in radiation protection or radiology is a measure of the stochastic (i.e., probabilistic) health effect on an individual due to an intake of radioactive material into their body. A committed dose from an internal source is intended to carry the same effective risk as the same amount of equivalent dose applied uniformly to the whole body from an external source, or the same amount of effective dose applied to part of the body. The committed dose is not intended as a measure for acute or threshold effects of radiation exposure such as erythemaradiation sickness or death. Equivalent dose is dimensionally a quantity of energy per unit of mass, and is measured in sieverts or rems. The leading model of radiation risk predicts that an effective dose of one sievert (100 rem) carries a 5.5 hance of developing cancer. The application of this model to committed dose is disputed.

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NRC Nuclear Energy Glossary

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Annual limit on intake (ALI)
The derived limit for the amount of radioactive material taken into the body of an adult worker by inhalation or ingestion in a year. ALI is the smaller value of intake of a given radionuclide in a year by the reference man that would result in a committed effective dose equivalent of 5 rems (0.05 sievert) or a committed dose equivalent of 50 rems (0.5 sievert) to any individual organ or tissue. (see 10 CFR 20.1003.)