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Lithium Contamination in AMS Measurements of 14C

Published online by Cambridge University Press:  18 July 2016

D. H. Loyd ,
J. S. Vogel  and
Susan Trumbore
D. H. Loyd*
Affiliation:
Center for Accelerator Mass Spectrometry, University of California
J. S. Vogel
Affiliation:
Lawrence Livermore National Laboratory, Livermore, California 94550 USA
Susan Trumbore
Affiliation:
Lawrence Livermore National Laboratory, Livermore, California 94550 USA
*
1Permanent address: Department of Physics, Angelo State University, San Angelo, Texas 76909 USA
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Abstract

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High count rates of lithium ions in an AMS measurement system for 14C were traced to the lithium content in the quartz tubes used in the graphitization of the samples. The lithium contamination was nearly eliminated by the use of borosilicate glass reaction tubes at a lower reaction temperature. The ion beam current and the measurement precision of the isotope ratio were not affected.

Type
Articles
Information
Radiocarbon , Volume 33 , Issue 3 , 1991 , pp. 297 - 301
Copyright
Copyright © The American Journal of Science 

References

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