High intensity isobar separation at the Zürich AMS facility

Abstract A dedicated gas-filled magnet has been installed on the Zurich AMS beam line. It was designed with special emphasis on isobar suppression for 32 Si and 36 Cl AMS. Calculations and Monte Carlo simulations have been performed to estimate separation, profile and suppression of the isobaric beams through the gas-filled magnet. The calculations are in good agreement with measurement on the new separator. For 32 Si a suppression of 32 S of 11 orders of magnitude was obtained. This should make it possible to measure 32 Si in natural samples.