IEVref: | 881-04-41 | ID: | |

Language: | en | Status: Standard | |

Term: | decay constant | ||

Synonym1: | disintegration constant [Preferred] | ||

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Synonym3: | |||

Symbol: | λ
| ||

Definition: | for a radionuclide, the probability per unit time for the spontaneous decay if one of its nuclei. It is given by: $\lambda =-\frac{1}{N}\cdot \frac{\text{d}N}{\text{d}t}$
in which | ||

Publication date: | 1983-01 | ||

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Domain5: |

$\lambda =-\frac{1}{N}\cdot \frac{\text{d}N}{\text{d}t}$

in which *N* is the number of nuclei of concern existing at time *t*