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The Keck Carbon Cycle AMS Laboratory, University of California, Irvine: Status Report

Published online by Cambridge University Press:  18 July 2016

Robert K Beverly ,
Will Beaumont ,
Denis Tauz ,
Kaelyn M Ormsby ,
Karl F von Reden ,
Guaciara M Santos  and
John R Southon
Robert K Beverly*
Affiliation:
Earth System Science Department, University of California, Irvine, California 92612, USA
Will Beaumont
Affiliation:
Earth System Science Department, University of California, Irvine, California 92612, USA
Denis Tauz
Affiliation:
Earth System Science Department, University of California, Irvine, California 92612, USA
Kaelyn M Ormsby
Affiliation:
Earth System Science Department, University of California, Irvine, California 92612, USA
Karl F von Reden
Affiliation:
NOSAMS, McLean Laboratory, WHOI, Woods Hole, Massachusetts 02543, USA
Guaciara M Santos
Affiliation:
Earth System Science Department, University of California, Irvine, California 92612, USA
John R Southon
Affiliation:
Earth System Science Department, University of California, Irvine, California 92612, USA
*
Corresponding author. Email: [email protected]
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Abstract

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We present a status report of the accelerator mass spectrometry (AMS) facility at the University of California, Irvine, USA. Recent spectrometer upgrades and repairs are discussed. Modifications to preparation laboratory procedures designed to improve sample throughput efficiency while maintaining precision of 2–3‰ for 1-mg samples (Santos et al. 2007c) are presented.

Type
Accelerator Mass Spectrometry
Information
Radiocarbon , Volume 52 , Issue 2: 20th Int. Radiocarbon Conference Proceedings , 2010 , pp. 301 - 309
Copyright
Copyright © 2010 by the Arizona Board of Regents on behalf of the University of Arizona 

References

Bottinga, Y. 1969. Calculated fractionation factors for carbon and hydrogen isotope exchange in the system calcite-carbon dioxide-graphite-methane-hydrogen-water vapor. Geochimica et Cosmochimica Acta 33(1):49–64.Google Scholar
Goslar, T, Czernik, J, Goslar, E. 2004. Low-energy 14C AMS in Poznań radiocarbon laboratory, Poland. Nuclear Instruments and Methods in Physics Research B 223–224:5–11.CrossRefGoogle Scholar
Santos, GM, Southon, JR, Druffel-Rodriguez, KC, Griffin, S, Mazon, M. 2004. Magnesium perchlorate as an alternative water trap in AMS graphite sample preparation: a report on sample preparation at KCCAMS at the University of California, Irvine. Radiocarbon 46(1):165–73.Google Scholar
Santos, GM, Southon, JR, Griffin, S, Beaupre, SR, Druffel, ERM. 2007a. Ultra small-mass AMS 14C sample preparation and analyses at KCCAMS/UCI Facility. Nuclear Instruments and Methods in Physics Research B 259(1):293–302.Google Scholar
Santos, GM, Mazon, M, Southon, JR, Rifai, S, Moore, R. 2007b. Evaluation of iron and cobalt powders as catalysts for 14C-AMS target preparation. Nuclear Instruments and Methods in Physics Research B 259(1):308–15.Google Scholar
Santos, GM, Moore, RB, Southon, JR, Griffin, S, Hinger, E, Zhang, D. 2007c. AMS 14C sample preparation at the KCCAMS/UCI Facility: status report and performance of small samples. Radiocarbon 49(2):255–69.Google Scholar
Santos, GM, Southon, JR, Drenzek, NJ, Ziolkowski, LA, Druffel, E, Xu, X, Zhang, D, Trumbore, S, Eglinton, TI, Hughen, KA. 2010. Blank assessment for ultra-small radiocarbon samples: chemical extraction and separation versus AMS. Radiocarbon 52(2–3):1322–35.Google Scholar
Southon, J, Santos, GM, Druffel-Rodriguez, K, Druffel, E, Trumbore, S, Xu, X, Griffin, S, Ali, S, Mazon, M. 2004. The Keck Carbon Cycle AMS laboratory, University of California, Irvine: initial operation and a background surprise. Radiocarbon 46(1):41–9.CrossRefGoogle Scholar
Southon, JR, Santos, GM. 2004. Ion source development at KCCAMS, University of California, Irvine. Radiocarbon 46(1):33–9.Google Scholar
Southon, J, Santos, GM. 2007. Life with MC-SNICS. Part II: recent ion source development at the Keck Carbon Cycle AMS Facility. Nuclear Instruments and Methods in Physics Research B 259(1):88–93.Google Scholar
Southon, J, Santos, G, Han, B. 2007. Cs feed tests and emittance measurements on a modified MC-SNICS ion source for radiocarbon AMS. Radiocarbon 49(2):301–5.CrossRefGoogle Scholar
Stuiver, M, Polach, HA. 1977. Discussion: reporting of 14C data. Radiocarbon 19(3):355–63.CrossRefGoogle Scholar