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Berlin Radiocarbon Dates V

Published online by Cambridge University Press:  18 July 2016

G Kohl
Affiliation:
Central Institute of Archaeology and Ancient History, Academy of Sciences of the German Democratic Republic
H Quitta
Affiliation:
Central Institute of Archaeology and Ancient History, Academy of Sciences of the German Democratic Republic
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The dates presented in this paper comprise results of determinations made on archaeologic and geologic material from Socialist Republic Vietnam since 1969. Radioactivity was measured twice for 48 hours with gas proportional counters of Houtermans-Oeschger type, using methane at 1000mm Hg pressure as filling gas. Influence of cosmic and local environmental radiation on the counters was reduced with 30 tons of shielding material as described earlier (R, 1970, v 12, p 400-420).

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