Radiocarbon dating beta analytic
That is, the original labels were redistributed among the samples and the document that recorded the relabeling was sealed and secured.
The results support the reliability of Int Cal09 over the range of dates tested.
Radiocarbon, or carbon-14 (also written as C), is an isotope of carbon that is unstable and weakly radioactive.
Carbon-14 is present in all living things in minute amounts.
Radiocarbon immediately reacts with oxygen in the air to form carbon dioxide (CO2).
This carbon dioxide rapidly mixes throughout the atmosphere, where at ground level it is taken in by plants during photosynthesis.
Carbon-14 originates in the upper atmosphere of the earth and is created when neutrons originating from solar radiation bombardment collide with nitrogen in the air.