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Uses of mass spectrometry in carbon dating

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This means the sample needs to be quite big, typically a few grams, otherwise the radioactivity is too small to measure.

-counting method) or by directly counting the radiocarbon atoms using a method called Accelerator Mass Spectrometry (AMS).In particular, applications to dating of archaeological samples and interesting artifacts are discussed.Other applications, such as to extraterrestrial materials such as lunar samples and meteorites show the broad range of topics that can be addressed with Content from this work may be used under the terms of the Creative Commons Attribution 3.0 licence.The method is relatively new because it needs very complicated instruments first developed for Nuclear Physics research in the late 20th century.In common with other kinds of mass spectrometry, AMS is performed by converting the atoms in the sample into a beam of fast moving ions (charged atoms).The latter type of detector can measure both the total energy of the incoming ion, and also the rate at which it slows down as it passes through the gas-filled detector.