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Radioisotope Dating with the ETHZ-EN-Tandem Accelerator

  • Willy Woelfli (a1), Georges Bonani (a1), Martin Suter (a1), Richard Balzer (a1), Marzio Nessi (a1), Christian Stoller (a1), Juerg Beer (a2), Hans Oeschger (a2) and Michel Andrée (a2)...

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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.

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References

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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.
Klein, M, Middleton, R, and Tang, H, 1982, Modifications of an FN tandem for quantitative 10Be measurements, Nucl Instr Meth, v 193, p 601616.
Middleton, R, Klein, J, Tang, W, 1981, Instrumentation of an FN tandem for the detection of 10Be, ANL/PHY-81-1, p 5786.
Purser, KH, and Henley, PR, 1978, in Gove, HE, ed, First Conf on Radiocarbon Dating with Accelerators, Proc Univ Rochester, p 165186.
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.
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.
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.
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.

Radioisotope Dating with the ETHZ-EN-Tandem Accelerator

  • Willy Woelfli (a1), Georges Bonani (a1), Martin Suter (a1), Richard Balzer (a1), Marzio Nessi (a1), Christian Stoller (a1), Juerg Beer (a2), Hans Oeschger (a2) and Michel Andrée (a2)...

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