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  • P-ISSN 1225-0163
  • E-ISSN 2288-8985

Study on the Radiocarbon Dating with Liquid Scintillation Counting

Analytical Science and Technology / Analytical Science and Technology, (P)1225-0163; (E)2288-8985
1992, v.5 no.4, pp.381-387
Kim, Nak Bae
Woo, Hyung Joo
Hong, Wan
Cho, Soo Young
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Abstract

Optimum counting condition of a low level liquid scintillation counter for radiocarbon dating has been determined to minimize the contribution of tritium activity and get the highest FOM by the variation of scintillation solutions, scintillation solution to benzene ratio, and <TEX>${\beta}$</TEX>-ray spectrum counting ranges. Under the condition, background count rate has been reduced to <TEX>$2.26{\pm}0.03cpm$</TEX>, and the maximum measurable age reached to about 40,000 years. And the practicality of counting system has been verified by the analysis of shell and peat samples.

keywords
Radiocarbon dating, Low level counting, LSC


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