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dc.contributor.authorVogel, J. S.
dc.contributor.authorNelson, D. E.
dc.contributor.authorSouthon, J. R.
dc.date.accessioned2021-02-11T20:14:12Z
dc.date.available2021-02-11T20:14:12Z
dc.date.issued1987-01-01
dc.identifier.citationVogel, J. S., Nelson, D. E., & Southon, J. R. (1987). 14C background levels in an accelerator mass spectrometry system. Radiocarbon, 29(3), 323-333.
dc.identifier.issn0033-8222
dc.identifier.doi10.1017/S0033822200043733
dc.identifier.urihttp://hdl.handle.net/10150/652890
dc.description.abstractThe levels and sources of the measurement background in an AMS 14C dating system have been studied in detail. The relative contributions to the total background from combustion, graphitization, storage, handling, and from the accelerator were determined by measuring the 14C concentrations in samples of anthracite coal ranging in size from 15 micrograms to 20mg. The results show that, for the present system, the uncertainty in the background is greater than that due to measurement precision alone for very old or for very small samples. While samples containing 100 micrograms of carbon can yield useful 14C dates throughout the Holocene, 200 to 500 micrograms are required for dating late Pleistocene materials. With the identification of the procedures that introduce contamination, the level and uncertainty of the total system background should both be reducible to the point that 100 micrograms of carbon would be sufficient for dating most materials.
dc.language.isoen
dc.publisherAmerican Journal of Science
dc.relation.urlhttp://radiocarbon.webhost.uits.arizona.edu/
dc.rightsCopyright © The American Journal of Science
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/
dc.subjectpollution
dc.subjecttechniques
dc.subjectmass spectroscopy
dc.subjectspectroscopy
dc.subjectPleistocene
dc.subjectCenozoic
dc.subjectQuaternary
dc.subjectC 14
dc.subjectcarbon
dc.subjectdates
dc.subjectisotopes
dc.subjectradioactive isotopes
dc.subjectabsolute age
dc.title14C Background Levels in an Accelerator Mass Spectrometry System
dc.typeArticle
dc.typetext
dc.identifier.journalRadiocarbon
dc.description.noteThis material was digitized as part of a cooperative project between Radiocarbon and the University of Arizona Libraries.
dc.description.collectioninformationThe Radiocarbon archives are made available by Radiocarbon and the University of Arizona Libraries. Contact lbry-journals@email.arizona.edu for further information.
dc.eprint.versionFinal published version
dc.description.admin-noteMigrated from OJS platform February 2021
dc.source.volume29
dc.source.issue3
dc.source.beginpage323
dc.source.endpage333
refterms.dateFOA2021-02-11T20:14:12Z


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