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IEVref:113-05-29ID:
Language:enStatus: Standard
Term: mean life
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Symbol: T1/2
Definition: for a decaying population of particles of the same kind, duration for the number of particles to decrease to 1/e of the initial value, where e is the base of natural logarithms

NOTE 1 The mean life is the time constant for the decay of particles.

NOTE 2 Only exponential decays are known. However, for a combination of different kinds of particles with different mean life, the decay is not exponential, and the resulting mean life varies with time.


Publication date:2011-04
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Internal notes:2017-06-02: Cleanup - Remove Attached Image 113-05-29en.gif
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