Detection of 32Si and 36Cl with the ETH/SIN EN-Tandem

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Abstract

Improvements made at the Zürich AMS-facility in the detecting technique of heavier cosmogenic radioisotopes are described. It is possible to perform now 36Cl measurements of natural samples with isotope ratios of greater than 10−14. The reproducibility of 36Cl measurements with a beam energy of 48 MeV is discussed. In the case of 32Si successful efforts were made to determine absolute isotope ratios of artificially enriched silicon samples.

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