rdf:type |
qudt:QuantityKind |
dcterms:description |
\(\textit{Activity}\) 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.
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qudt:applicableUnit |
Show 13 values |
qudt:dbpediaMatch |
http://dbpedia.org/resource/Radioactive_decay |
qudt:hasDimensionVector |
qkdv:A0E0L0I0M0H0T-1D0 |
qudt:informativeReference |
|
qudt:isoNormativeReference |
http://www.iso.org/iso/catalogue_detail?csnumber=31895 |
qudt:latexDefinition |
Variation \(dN\) of number of nuclei \(N\) in a particular energy state,
in a sample of a radionuclide, due to spontaneous nuclear transitions from this state during an infinitesimal time interval,
divided by its duration \(dt\); thus: activity \(A = -\frac{dN}{dt}\).
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qudt:siExactMatch |
si-quantity:ARRN |
qudt:symbol |
“A” |
qudt:wikidataMatch |
http://www.wikidata.org/entity/Q317949 |
rdfs:comment |
“Applicable units are those of quantitykind:Activity” |
rdfs:isDefinedBy |
http://qudt.org/3.1.10/vocab/quantitykind |
rdfs:label |
“Activity”@en |
skos:broader |
quantitykind:StochasticProcess |
