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From these data, concentration ratio of the isotopes can be known to allow evaluation of the level of fractionation.The greatest advantage that AMS radiocarbon dating has over radiometric methods is small sample size.

These negatively ionized carbon atoms pass through focusing devices and an injection magnet before reaching the tandem accelerator where they are accelerated to the positive terminal by a voltage difference of two million volts.

Radiometric dating methods detect beta particles from the decay of carbon 14 atoms while accelerator mass spectrometers count the number of carbon 14 atoms present in the sample.

Both carbon dating methods have advantages and disadvantages.

There are two accelerator systems commonly used for radiocarbon dating through accelerator mass spectrometry.

One is the cyclotron, and the other is a tandem electrostatic accelerator.

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