In nuclear physics, secular equilibrium is a situation in which the quantity of a radioactive isotope remains constant because its production rate (e.g., due to decay of a parent isotope) is equal to its decay rate. ...
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http://en.wikipedia.org/wiki/Secular_equilibrium
in a radioactive series for which the radioactive half-life of the precursor is very much longer than that of any other member of the series, the state that prevails when the activities of all members of the series are equal
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http://www.electropedia.org/iev/iev.nsf/display?openform&ievref=881-02-33
A type of radioactive equilibrium in which the half-life of the precursor (parent) radioisotope is so much longer than that of the product (daughter) that the radioactivity of the daughter becomes equal to that of the parent with time. ... Stable equilibrium, equilibrium in which, after every small perturbation, the original state will tend to be r...
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http://www.encyclo.co.uk/local/20973
Type: Term Definitions: 1. a type of radioactive equilibrium in which the half-life of the precursor (parent) radioisotope is so much longer than that of the product (daughter) that the radioactivity of the daughter becomes equal to that of the parent with time.
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http://www.medilexicon.com/medicaldictionary.php?t=30090
No exact match found.
