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An AMS system dedicated to 14 C measurement (486-AMS) built by HVEE B.V. The Netherlands, was delivered to Nagoya University in 1996, and is in use for routine 14 C measurements. The relative error of the standard deviation (1σ) of 14 C/ 12 C ratios is ±0.3% to ±0.5% (somewhat larger than the uncertainty of ±0.3% from 14 C counting statistics) and that of the...
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