Browsing Radiocarbon, Volume 21, Number 3 (1979) by Title
Now showing items 5-14 of 14
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Measurement of the 14C Activity of the ANU Sucrose Secondary Standard by Means of the Proportional Counter TechniqueA systematic crosschecking of the NBS oxalic acid standard, the ANU Sucrose secondary standard, and the RB oak tree rings grown in 1858 +/- - 5 and 1890 +/- - 5 has been performed using the proportional counter technique. Details on the counter gas (methane) purification are given. Corrections of count rates due to changes of barometric pressure and ambient temperature are applied and discussed. Results of measurements are presented and the ratios between mean activities of the NBS oxalic, ANU sucrose and RB oak samples are given.
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Notice to ReadersAmerican Journal of Science, 1979-01-01
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Radiocarbon, Volume 21, Number 3 (1979)American Journal of Science, 1979-01-01