Stuttgart 2012 – wissenschaftliches Programm

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MS: Fachverband Massenspektrometrie

MS 7: Accelerator Mass Spectrometry and Applications I

MS 7.1: Hauptvortrag

Donnerstag, 15. März 2012, 10:30–11:00, V57.06

Optimizing small AMS systems beyond C-14 — •Christof Vockenhuber — ETH Zurich, Zurich, Switzerland

Measurements of long-lived radionuclides are becoming more and more important in many fields of sciences. Accelerator Mass Spectrometry (AMS) is the most sensitive method for these investigations. In this respect, radiocarbon is one the most often used long-lived radionuclide. Its importance has grown as smaller, more compact and cheaper measurement devices have become available.

Other long-lived radionuclides such as ¹⁰Be, ²⁶Al, ⁴¹Ca, ¹²⁹I, ²³⁶U and Pu isotopes are often still measured at larger facilities. However, developments in recent years have shown that these nuclides can be measured at small AMS facilities (with terminal voltages below 1 MV) at a level comparable to larger facilities. In some cases, the performance is even better allowing for higher sample throughput, higher precision and higher efficiencies.

In this presentation I will give an overview of recent developments of small AMS facilities with the focus on the activities at the Laboratory of Ion Beam Physics at ETH Zurich.