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What machine is used to do carbon dating

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The measurement time is much more rapid – you don’t have to sit around and wait for the carbon-14s to decay – and also the precision is better.Well unfortunately, AMS dating is expensive because of the amount of equipment that’s involved and because the sample preparation is a lot more labour intensive.Accelerator mass spectrometry is not dependent upon the radioactive decay.What you’re doing is measuring all of the carbon isotopes in the sample – the 12, 13 and 14 – the accelerator operates like a giant mass spectrometer.Dr Christine Prior is Team Leader of the Rafter Radiocarbon Laboratory at GNS Science.In this video, she compares conventional and accelerator mass spectrometry (AMS) radiocarbon dating.Libby and coworkers and has provided age determinations in archeology, geology, geophysics, and other branches of science.

The C-14 decays with the beta particle, and you have some detection equipment and you count the C-14s one by one.Mass spectometer The new technology uses a quadrupole mass spectrometer (QMS) which will reduce the time it takes to obtain data for a bone sample to just two days.Significantly the technology can also be utilised onsite, and this is the first time this has been attempted.So if you have very large samples – you’ve got a big hunk of wood out of an archaeological site or a big piece of charcoal or something – and you have a very limited budget, conventional dating is worth doing because you get a result and you can possibly get more results with your budget than with AMS dating.However, in many circumstances, sample size dictates AMS.So far the technique has been has been used to analyse both medieval and post medieval bone samples provided by Norton Priory Museum & Gardens, the most excavated monastic site in Europe.