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Radioisotope Dating with the ETHZ-EN-Tandem Accelerator

Published online by Cambridge University Press:  18 July 2016

Willy Woelfli
Affiliation:
Laboratorium für Kernphysik, Eidgenössische Technische, Hochschule, CH-8093 Zürich, Switzerland
Georges Bonani
Affiliation:
Laboratorium für Kernphysik, Eidgenössische Technische, Hochschule, CH-8093 Zürich, Switzerland
Martin Suter
Affiliation:
Laboratorium für Kernphysik, Eidgenössische Technische, Hochschule, CH-8093 Zürich, Switzerland
Richard Balzer
Affiliation:
Laboratorium für Kernphysik, Eidgenössische Technische, Hochschule, CH-8093 Zürich, Switzerland
Marzio Nessi
Affiliation:
Laboratorium für Kernphysik, Eidgenössische Technische, Hochschule, CH-8093 Zürich, Switzerland
Christian Stoller
Affiliation:
Laboratorium für Kernphysik, Eidgenössische Technische, Hochschule, CH-8093 Zürich, Switzerland
Juerg Beer
Affiliation:
Physikalisches Institut, Universität Bern, CH-3012 BERN, Switzerland
Hans Oeschger
Affiliation:
Physikalisches Institut, Universität Bern, CH-3012 BERN, Switzerland
Michel Andrée
Affiliation:
Physikalisches Institut, Universität Bern, CH-3012 BERN, Switzerland
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During the last three years the ETH-EN-tandem accelerator facility has been adapted for the quantitative determination of the rare isotopes 14C and 10Be in mg samples. The goal of this project is to routinely achieve a 1% accuracy when measuring 14C/12C ratios with a minimum expenditure of human resources and beam time. The concept is similar to that proposed by Purser and Henley (1978). The early evolution of this dating facility was described previously (Suter et al, 1981a,b). This paper is a brief report on the current status of the system and its development.

Type
VIII. Technical Aspects of Accelerator Mass Spectrometry
Copyright
Copyright © The American Journal of Science 

References

Beer, J, Oeschger, H, Stauffer, B, Balzer, R, Bonani, G, Stoller, Ch, Suter, M, and Wölfli, W, 1983, Comparison of 10B and 14C variations, in : Radiocarbon, v 25.Google Scholar
Klein, M, Middleton, R, and Tang, H, 1982, Modifications of an FN tandem for quantitative 10Be measurements, Nucl Instr Meth, v 193, p 601616.CrossRefGoogle Scholar
Middleton, R, Klein, J, Tang, W, 1981, Instrumentation of an FN tandem for the detection of 10Be, ANL/PHY-81-1, p 5786.Google Scholar
Purser, KH, and Henley, PR, 1978, in Gove, HE, ed, First Conf on Radiocarbon Dating with Accelerators, Proc Univ Rochester, p 165186.Google Scholar
Raisbeck, GM, Yion, F, Lieuvin, M, Ravel, JC, Fruneau, M, Loiseaux, JM, 1981, 10Be in the environment: Some recent results and their applications, ANL/PHY-81-1, p 228243.Google Scholar
Suter, M, Balzer, R, Bonani, G, Stoller, Ch, Wölfli, W, Beer, J, Oeschger, H, and Stauffer, B, 1981a, Radioisotope Dating using an EN-tandem accelerator, IEEE transaction on Nucl Sci, NS-28, p 14751477.CrossRefGoogle Scholar
Suter, M, Balzer, R, Bonani, G, Stoller, Ch, Wölfli, W, Beer, J, Oeschger, H, and Stauffer, B, 1981b, Improvements in the application of a tandem Van-de-Graaff accelerator for ultra-sensitive mass spectrometry, ANL/PHY-81-1, p 8795.Google Scholar
Suter, M, Balzer, R, Bonani, G, Nessi, M, Stoller, Ch, Wölfli, W, Andrée, M, Beer, J, Oeschger, H 1983, Precision measurements of rare radioisotopes with a tandem Van-de-Graaff accelerator, IEEE Transaction on Nucl Sci, NS-30, in press.Google Scholar
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