Concept information
Preferred term
Activity
Definition
- $\ extit{Activity}$ is the number of decays per unit time of a radioactive sample, the term used to characterise the number of nuclei which disintegrate in a radioactive substance per unit time. Activity is usually measured in Becquerels ($Bq$), where 1 $Bq$ is 1 disintegration per second, in honor of the scientist Henri Becquerel.
Narrower concepts
Entry terms
- A
In other languages
-
A
URI
https://vocab.sentier.dev/units/quantity-kind/Activity
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