Abstract

The National Ocean Sciences Accelerator Mass Spectrometry Facility at the Woods Hole Oceanographic Institution, with its automated, high-throughput AMS system, has been operational for close to 9 years. The system is presently dedicated to radiocarbon analysis, where measurement of approximately 3200 samples per year has been maintained. Currently two Cs sputter ion sources are used alternately, allowing fast turnaround time, with each source capable of analyzing 58 samples. Development of a new microwave gas ion source is underway. For some samples, this will circumvent the need for graphite processing. A new, 134-sample MC-SNICS, sputter ion source is being acquired from National Electrostatics Corporation. It is expected to be operational by next year and will extend analysis capability to incorporate smaller sample sizes, a current demand of many clients.

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