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Initial Results with Low Energy Single Stage AMS

Published online by Cambridge University Press:  18 July 2016

J B Schroeder
Affiliation:
National Electrostatics Corporation, Middleton, Wisconsin, USA. Email: nec@pelletron.com.
T M Hauser
Affiliation:
National Electrostatics Corporation, Middleton, Wisconsin, USA. Email: nec@pelletron.com.
G M Klody
Affiliation:
National Electrostatics Corporation, Middleton, Wisconsin, USA. Email: nec@pelletron.com.
G A Norton
Affiliation:
National Electrostatics Corporation, Middleton, Wisconsin, USA. Email: nec@pelletron.com.
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Abstract

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The National Electrostatics Corporation has built and tested a prototype low energy, open-air, single stage carbon accelerator mass spectrometry (AMS) system (patent pending). The configuration tested has a standard 40-sample, multi-cathode SNICS source on a 300-kV deck. The beam is mass analyzed before acceleration to a gas stripper located at ground. The 14C+ ions are separated from 13C+ and 12C+ arising from the molecular breakup by a 90° analyzing magnet immediately after the gas stripper which acts as a molecular dissociator. The 14C+ beam passes through an electrostatic spherical analyzer before entering the particle detector. The observed 14C/12C precision is better than 5% with a sensitivity of better than 0.05 dpm/gmC. A first single stage AMS system has been ordered. The configuration of this system will be discussed.

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Copyright
Copyright © 2004 by the Arizona Board of Regents on behalf of the University of Arizona 

References

Suter, M, Huber, R, Jacob, SAW, Synal, H-A, Schroeder, JB. 1999. A new small accelerator for radiocarbon dating. 15th International Conference on Application of Accelerators in Research and Industry. 4–7 November 1998. Denton, Texas. American Institute of Physics.Google Scholar
Synal, H-A, Jacob, S, Suter, M. 2000. New concepts for radiocarbon detection systems. Nuclear Instruments and Methods in Physics Research B 161–163:2936.Google Scholar
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