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KSU Radiocarbon Dates II

Published online by Cambridge University Press:  18 July 2016

Osamu Yamada*
Affiliation:
Faculty of Science, Kyoto Sangyo University, Kyoto 603, Japan
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This date list mainly reports on samples processed from 1982 to 1991. Each sample is converted to methanol. Radiocarbon is measured in a Teflon vial containing a mixture of 40 g of methanol and 50 cc of xylene, 1% Butyl PBD and 0.1% PBBO using low-background scintillation counters Aloka LSC-800, LB-I and LB-III. The background of LB-III is ca. 8 cpm and counting efficiency is ca. 70%. The recent 14C standard used is 95% of NBS oxalic acid; 5568 yr is used as the half-life of 14C.

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Date Lists
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Copyright © The American Journal of Science 

References

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