secular equilibrium
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English
Noun
secular equilibrium (plural secular equilibria or secular equilibriums)
- (nuclear physics) The situation of the quantity of a radioisotope remaining constant because it is produced (by decay of a parent isotope) at the same rate that it decays.
- Synonym: radioactive equilibrium
- 1998, Michael F. L'Annunziata, Handbook of Radioactivity Analysis, Academic Press, page 61:
- In decay schemes of this type, the following three conditions may predominate: (1) secular equilibrium, (2) transient equilibrium, and (3) the state of no equilibrium.
- 2016, Tobias L. Ross, Frank Roesch, “Life sciences: Nuclear medicine diagnosis”, in Frank Rösch, editor, Nuclear- and Radiochemistry, Volume 2: Modern Applications, Walter de Gruyter, page 443:
- The and the generators represent secular equilibria.
- 2020, David J. Burdige, Geochemistry of Marine Sediments, Princeton University Press, page 43:
- At the same time, because of differences in the chemistry of the daughter and parent elements involved in such secular equilibria, this parent:daughter ratio may not be equal to 1.
Translations
situation of the quantity of a radioisotope remaining constant
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Further reading
Bateman equation on Wikipedia.Wikipedia - Transient equilibrium on Wikipedia.Wikipedia
