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Birmingham University Radiocarbon Dates II

Published online by Cambridge University Press:  18 July 2016

F. W. Shotton,
D. J. Blundell and
R. E. G. Williams
F. W. Shotton
Affiliation:
The University of Birmingham, Birmingham, England
D. J. Blundell
Affiliation:
The University of Birmingham, Birmingham, England
R. E. G. Williams
Affiliation:
The University of Birmingham, Birmingham, England
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Measurements have continued with the 6 L counter which has proved reliable at pressures as high as 2.6 atm and as low as 0.3 atm. It has now been enclosed in a double ring of 27 geiger tubes which has reduced the background count to 10 cpm at 2 atm. So far, we have had no success with the 1.5 L Oeschger-type proportional counter. Failure to obtain steady readings is probably due to continued outgassing from the teflon insulation. All insulating parts have now been remanufactured from the same source of teflon as was used in the 6 L counter, and the Oeschger counter is being reassembled.

Results are still given without correction for δC13. Errors quoted refer only to the standard deviation calculated from a statistical analysis of count rates and the Libby half-life of 5570 ± 30 yr.

Information

Type
Research Article
Information
Radiocarbon , Volume 10 , Issue 2 , 1968, pp. 200 - 206
Copyright
Copyright © The American Journal of Science 

References

Date lists: Google Scholar
Arizona VI Haynes, , Damon, , and Grey, , 1966 Google Scholar
Birmingham I Shotton, , Blundell, , and Williams, , 1967 Google Scholar
NPL IV Callow, , Baker, , and Hassall, , 1966 Google Scholar
UCLA IV Berger, , Fergusson, , and Libby, , 1965 Google Scholar
Battaglia, R., 1943, La Palafitta del Lago di Ledro: Mem. del. Mus. di Storia Nat. della Venezia Tridentina VII.Google Scholar
Berger, R., Fergusson, G. J., and Libby, W. F., 1965, UCLA radiocarbon dates IV: Radiocarbon, v. 7, p. 336–371.CrossRefGoogle Scholar
Broecker, W. S., 1963, Radiocarbon ages of Antarctic materials: Polar Record, v. 11, no. 73, p. 472.Google Scholar
Callow, W. J., Baker, M. J., and Hassall, G. I., 1966, National Physical Laboratory measurements IV: Radiocarbon, v. 8, p. 340–347.Google Scholar
George, T. N., 1932, The Quaternary Beaches of Gower: Proc. Geol. Assoc., v. 43, p. 292.Google Scholar
Haynes, C. V. Jr., Damon, P. E., and Grey, D. C., 1966, Arizona radiocarbon dates VI: Radiocarbon, v. 8, p. 1–21.Google Scholar
McGregor, A. G., 1938, The Royal Society expedition to Montserrat, B.W.I.: Royal Soc. (London) Philos. Trans., Ser. B, v. 299, p. 1–90.Google Scholar
Robson, G. R. and Tomblin, J. F., 1966, Cat. of the active volcanoes of the world including solfatara fields: Int. Assoc. Volcan., pt. 20, West Indies, p. 5–10.Google Scholar
Shotton, F. W., 1967, Age of the Irish Sea Glaciation of the Midlands: Nature, v. 215, no. 5108, p. 1366.Google Scholar
Shotton, F. W., Blundell, D. J., and Williams, R. E. G., 1967, Birmingham University radiocarbon dates I: Radiocarbon, v. 9, p. 35–38.Google Scholar