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Erlangen 2018 – scientific programme

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MS: Fachverband Massenspektrometrie

MS 8: Accelerator Mass Spectrometry 3

MS 8.4: Talk

Thursday, March 8, 2018, 15:15–15:30, R 1.020

AMS measurement of Cl-36 with Gas-Filled Magnet at 6 MV — •Christof Vockenhuber — Laboratory of Ion Beam Physics, ETH Zurich, Otto-Stern-Weg 5, 8093 Zürich

Cl-36 is one of the AMS nuclides that still requires high ion energy to suppress the interfering isobar S-36 and is often used to justify a (relatively) large tandem accelerator with a terminal voltage of 5-6 MV. Over the past decades several methods have been developed by the different AMS laboratories to solve the S-36 problem, each with its own advantages and disadvantages. At ETH we recently switched to the method of the gas-filled magent (GFM) for routine Cl-36 measurements. Traditionally the GFM method has been only employed by even larger accelerators at higher ion energies. In this talk I will discuss the setup of the GFM at the 6 MV tandem accelerator at ETH Zurich and the performance of Cl-36 under routine measurement conditions. Additionally the question of how low in energy one can go with the GFM will be addressed.

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