Radiocarbon mass spectrometer (AMS)

Radiocarbon mass spectrometer (AMS)

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Credit: JAMES KING-HOLMES/SCIENCE PHOTO LIBRARY

Caption: MODEL RELEASED. A section of the accelerator mass spectrometer (AMS) in the Oxford Radiocarbon Accelerator Unit, for dating samples of organic material. In this section a stream of positively charged carbon ions flowing inside the main tube is kept in position by electrostatic lenses before the isotopes are separated, with carbon-14 ions counted by a detector. This count is the basis for calculating the age of the original sample by comparison with the more stable carbon-12 and carbon 13 atoms. Photographed at the Oxford Radiocarbon Accelerator Unit, University of Oxford, UK.

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Keywords: accelerator mass spectrometry, age, ams, archaeology, archeology, beam, beam-splitter, carbon, carbon dating, carbon dioxide, carbon-14, carbon-14 dating, dating, detector, half-life, isotope, magnet, oxford, physics, radiocarbon, radiocarbon dating, stream

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