Classification of doses (acute exposures)
This classification of effective doses from the UNSCEAR (United Nations Scientific Committee on the Effects of Atomic Radiation) refers doses due to acute global exposures, ie doses received in one burst by the whole body during a short period of time. The resulting effects are known as deterministic (apparition of post-irradiation short-term biological signs or symptoms) by opposition to stochastic effects such the appearance with a low probability of eventual cancers or hereditary mutations many years after.