specific activity (radionuclide)

of a radionuclide
symbol: AS(R)
https://doi.org/10.1351/goldbook.08763
Activity of a specified radionuclide (R) per unit mass of that nuclide.
Note: If the term 'specific activity' is used without qualification, it should be made clear whether it is of a material or of a radionuclide. See: specific activity of a radionuclide in a material.
Example: Specific activity of tritium (A3A223H) is 3.57×1017 Bqkg−1 (9.65 Cimg−1).
Source:
PAC, 2021, 93, 69. (Vocabulary of radioanalytical methods (IUPAC Recommendations 2020)) on page 103 [Terms] [Paper]
Citation: 'specific activity (radionuclide)' in IUPAC Compendium of Chemical Terminology, 5th ed. International Union of Pure and Applied Chemistry; 2025. Online version 5.0.0, 2025. https://doi.org/10.1351/goldbook.08763 RIS BibTex EndNote
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