in radioanalytical chemistry
A known amount of element that is simultaneously irradiated with the @T06284@ in the context of @A00096@. If one comparator is used (single comparator method), it is essentially identical to a flux monitor (except that this term is not necessarily linked to @A00093@ analysis).
PAC, 1994, 66, 2513. (Nomenclature for radioanalytical chemistry (IUPAC Recommendations 1994)) on page 2516 [Terms] [Paper]