![]() After acceleration and removal of electrons, the emerging positive ions are magnetically separated by mass and the 12C and 13C ions are measured in Faraday Cups where a ratio of their currents is recorded. ![]() The surface of the graphite is sputtered with heated, ionized cesium and the ions produced are extracted and accelerated in the AMS system. ![]() In AMS, the filiamentous carbon or “graphite” derived from a sample is compressed into a small cavity in an aluminum “target” which acts as a cathode in the ion source.
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