Radiocarbon abundances in tree rings from the Spoerer minimum

Details Radiocarbon abundances in tree rings from the Spoerer minimum Radiocarbon abundances in tree rings from the Spoerer minimum

Aug 2001

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001icrc...10.4035k&link_type=abstract

Proceedings of the 27th International Cosmic Ray Conference. 07-15 August, 2001. Hamburg, Germany. Under the auspices of the Int

Physics

Scientific paper

Year-by-year measurements of the radiocarbon (14 C) content of tree rings formed during the Spoerer minimum (1414-1534 AD) have been carried out with an accuracy of 0.3 %. The measurements were made using the liquid scintillation method. Liquid benzene samples of 10 ml were prepared from single-year tree ring samples of 70 g taken from a 700 year-old Yaku cedar tree. The absolute year was determined using the bomb effect, which has its peak of radiocarbon content in 1964. Our first results of year-by-year measurements of 14 C content in the tree ring samples between 1410 and 1480 AD agree well with the pioneering work of Stuiver et al., which was obtained by combining tree rings of 10 years.

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