Difference between revisions of "Effective half-life"
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| − | where | + | where <math>T_i</math> is the half-life for process <math>i</math>. Examples of the processes are physical decay of the radionuclide, physiological removal in the body and weathering in the environment. |
''[[ICRP Glossary]] entry - June 2019'' | ''[[ICRP Glossary]] entry - June 2019'' | ||
Revision as of 14:22, 11 June 2019
Time taken for the activity of a radionuclide in a specified place to halve its activity as a result of all relevant processes. Effective half-life Teff may be determined by:
;
[math] \frac{1}{T_{eff}}=\displaystyle \sum_{i} \frac{1}{T_{i}} [/math]
where [math]T_i[/math] is the half-life for process [math]i[/math]. Examples of the processes are physical decay of the radionuclide, physiological removal in the body and weathering in the environment.
ICRP Glossary entry - June 2019
