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University of Kiel Radiocarbon MeasurementsII

Published online by Cambridge University Press:  18 July 2016

H. Willkomm
Affiliation:
C14 Laboratory of the University of Kiel, Germany
H. Erlenkeuser
Affiliation:
C14 Laboratory of the University of Kiel, Germany
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Most of the measurements reported here have beenobtained with the 4.5-L CO2 counterpreviously described (Kiel I; Erlenkeuser, 1965). Afew samples have been dated with a 3-L proportionalcounter. The copper counter is surrounded by 28 GMcounters in the form of a double ring. The totalassembly is shielded by 10 cm of old lead. Neitheran inner lead shield between counter andanticoincidence ring nor screening of sensitivevolume by a quartz tube-as in the 4.5-L counter-hasbeen used. Background of the small counter is 17.20cpm or The 0.95x NBS value is 9.5 cpm at 400 torr. Withinstatistical error background does not depend onatmospheric pressure. The 3-L counter is placedunder a concrete wall, 2.5 m in length and 9.4 m inheight.

Type
Research Article
Copyright
Copyright © The American Journal of Science 

References

Aletsee, L., 1967, Begriffliche und floristische Grundlagen zu einer pflanzengeographischen Analyse der europäischen Regenwassermoorstandorte: Beiträge zur Biologie der Pflanzen, in press.Google Scholar
Erlenkeuser, H., 1965 Über eine Anlage zur Altersbestimmung C14-haltiger Substanzen: Diplomarbeit, Kiel.Google Scholar
Suess, H. E. 1965, Secular variations of the cosmic ray produced carbon 14 in the atmosphere and their interpretations: Jour. Geophys. Res., v. 70, p. 5937–52.CrossRefGoogle Scholar
Stuiver, M., and Suess, H. E., 1966, On the relationship between radiocarbon dates and true sample ages: Radiocarbon, v. 8, p. 534.CrossRefGoogle Scholar
Münster, , 1965, Landesmuseum für Vor- und Frühgeschichte und Altertumskommission für Westfalen: Neujahrsgruss 1965.Google Scholar
Münster, , 1966, Laudesmuseum für Vor- und Frühgeschichte und Altertumskommission für Westfalen: Neujahrsguss 1966.Google Scholar