During the growth the carbon and its ratio becomes fixed in cells of plants, animals and humans.After the death of the organism the exchange with the environment stops and also the uptake of Reservoir age The equilibrium ratio is not everywhere the same on earth.This causes apparent age differences, known as reservoir ages.
Currently, the laboratory carries out age measurements under contract to Historic Environment Scotland, and Historic England.
It also provides measurements to several national museums, academic staff in a large number of universities worldwide, as well as many UK and European commercial archaeological units.
The worlds oldest continuously operating radiocarbon laboratory, Rafter Radiocarbon, is a department within the National Isotope Centre and has a long history in radiocarbon dating.
From its first radiocarbon measurement in 1951 to the installation of a new compact AMS in 2010 this facility has been at the forefront of radiocarbon analysis. We provide a full radiocarbon dating service for research and commercial clients worldwide.
In just the past 10 years over 25,000 samples have been measured from clients in New Zealand and throughout the world.
As well as the AMS facility, the Rafter Radiocarbon Laboratory operates a modern, well equipped sample processing laboratory.
Organisms take up carbon during their life and so obtain the equilibrium value from the environment.
C ages of carbonaceous material trapped within siliceous sinter.
Five samples came from depths of 15–152 cm within the Y-1 well, and two samples were from well Y-7 (depths of 24 cm and 122 cm).