Accelerator mass spectrometry research. Researcher preparing a sample for analysis in an accelerator mass spectrometer (AMS). This technique accelerat

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Accelerator mass spectrometry research. Researcher preparing a sample for analysis in an accelerator mass spectrometer (AMS). This technique accelerates ions to high speeds, and is used to detect various radioactive isotopes. One application is in carbon-14 dating. This sample, from a cave wall, is being dated at the Tandetron AMS in Gif-sur-Yvette, Paris, France.

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Photo credit: © PASCAL GOETGHELUCK/SCIENCE PHOTO LIBRARY / Alamy / Afripics
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