1. Archaeological Lead Findings in the Ukraine.
- Author
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Danevich, F. A., Kim, S. K., Kim, H. J., Kostezh, A. B., Kobychev, V. V., Kropivyansky, B. N., Laubenstein, M., Mokina, V. M., Nagorny, S. S., Nikolaiko, A. S., Nisi, S., Poda, D. V., Tretyak, V. I., and Voronov, S. A.
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DETECTORS ,SPECTRUM analysis ,X-rays ,FLUORESCENCE ,INDUCTIVELY coupled plasma mass spectrometry - Abstract
In June-August 2006 an expedition with the aim to look for low-radioactive archaeological lead at the bottom of the Black Sea, near the Crimean peninsula (Ukraine) was organised by a Korean-Ukrainian collaboration. The first samples with ∼0.2 tons of total mass were found at a depth of 28 m among the relics of an ancient Greek ship. Their age has been dated to the first century B.C. This lead was used as ballast in the keel of the ship. The element composition of the samples was measured by means of X-ray fluorescence and ICP-MS analyses. The first preliminary limits on the 210Pb contamination of the samples are less than a few hundreds mBq/kg. The measurements were performed using gamma spectroscopy with HPGe-detectors and alpha spectroscopy with commercial α-detectors. Measurements of 40K, Th/U in the lead samples were undertaken in Kiev and in the underground laboratories of the Laboratori Nazionali del Gran Sasso (LNGS, Italy). If it was found to be radio-clean this lead could be used as high efficiency shield for ultra low-level detectors, and as raw material for growing radio-pure scintillation crystals such as PbMoO4 or PbWO4 for the search for rare processes. © 2007 American Institute of Physics [ABSTRACT FROM AUTHOR]
- Published
- 2007
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