Positive Ion Mass Spectrometry (PIMS) is a patent-pending alternative mass spectrometric technique for radiocarbon measurement free of the need for a particle accelerator and without the sample-preparation requirements of AMS. In particular the plasma ion source employed is inherently more compatible with continuous-flow sample speciation technologies than are AMS sputter ion sources. In 2014 we announced that PIMS reproduced the range of <sup>14</sup>C concentration accessible by AMS. Since then we have further developed the method and have achieved other analyses by PIMS too.

PIMS progress

253rd National Meeting (2017)

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