(3) Aktiveerimine on protsess, mille käigus stabiilne nukliid muudetakse radionukliidiks, kiiritades seda sisaldavat materjali osakestega või suure energiaga footonitega.
defineeritakse selle seaduse ulatuses
(3) Activation means a process through which a stable nuclide is transformed into a radionuclide by irradiating with particles or high-energy photons the material in which it is contained.
