The doubling dose is the dose of radiation required to cause the same number of mutations that occur spontaneously in the population.
Some doubling dose values have been derived from atomic bomb survivors (from Schull et all, 1981):
|Genetic Indicator||Doubling Dose (Sv)|
|Untoward pregnancy outcome||0.69|
|Sex chromosome aneuploidy||2.52|
Estimates of the doubling dose generally place it at or above 1 Sv. Data from nuclear bomb survivors is for acute exposure only.