IUPAC - specific activity (radionuclide) (08763)

specific activity (radionuclide)

of a radionuclide
symbol:

A_{S} (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 (

_{}^{}_{}^{3} H

) is

3.57 \times 10^{17} Bq {kg}^{- 1}

(

9.65 Ci {mg}^{- 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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specific activity (radionuclide)