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A High Throughput 14C Accelerator Mass Spectrometer

Published online by Cambridge University Press:  18 July 2016

Kenneth H. Purser
Kenneth H. Purser*
Affiliation:
Southern Cross Corporation, 426C Boston Street, Topsfield, Massachusetts 01983 USA
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Abstract

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I present design details of a tandem accelerator mass spectrometer, which has been installed at the National Ocean Sciences AMS Facility at Woods Hole, Massachusetts, to provide precision 14C/13C/12C isotopic ratios for sub-milligram-size samples of graphite with throughputs of >4000 samples per year. A unique feature is the capability for simultaneous measurement of all three isotopes after acceleration, to avoid differential transmission effects and to allow on-line fractionation corrections and diagnosis of instrument health. Using filamentous graphite fabricated from a recent sample, we have established the counting rate of 14C ions at between 60–120 s–1.

Type
I. Sample Preparation and Measurement Techniques
Information
Radiocarbon , Volume 34 , Issue 3: Proceedings of the 14th International Radiocarbon Conference , 1992 , pp. 458 - 467
Copyright
Copyright © The American Journal of Science 

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