Radiocarbon measurement with 1 MV AMS at charge state 1+

Sung, Kilho; Wang, Hong; Park, G.; Lee, J.G.

doi:10.1016/j.nimb.2015.04.037

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2016

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“…We have selected charge state +2 for 14 C analysis as an alternative to charge state +1. The maximum yield with charge state +2 is obtained at 1MV acceleration voltage and surpasses the yield for charge state 1+, where the maximum yield is obtained at 0.5 MV (Sung et al 2015). However, we will in the near future test and report on the performance of charge state +1 on our AMS system.…”

Section: Resultsmentioning

confidence: 99%

Radiocarbon Analysis on the New AARAMS 1MV Tandetron

et al. 2016

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We report here on the radiocarbon performance on the AARAMS HVE 1MV Tandetron. 14C analysis is carried out in charge state 2+. We have avoided Li interference by appropriate settings of the high-energy electrostatic analyzer and the 30° second high-energy magnet. The 14C machine background is determined using unprocessed graphite, which yielded 58,650±2032 14C yr determined as the average and standard deviation of four measurements. International standards, which are used to monitor the long-term performance of the 14C measurements, agree with the reported consensus values.

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Section: Resultsmentioning

confidence: 99%