A NEW AMS FACILITY IN ERLANGEN - STATUS AND 1ST RESULTS

A new beamline for AMS measurements has been built at the Erlangen EN tandem accelerator. The main components at the low-energy side of the accelerator are a cesium sputter ion source and a 90-degrees injection magnet. At the high-energy side, a 15-degrees electrostatic sector field, a 55-degrees analyzing magnet for the separation of Be and C isotopes, and a gas-filled ionization chamber are used. In C-14 test measurements of charcoal, pit-coal and graphite samples, using a preliminary and simple ion source, the C-14 events could be clearly separated from the background. The system will be completed with a newly developed high-current ion source, which is presently being installed, and with a 120-degrees mass spectrometer, which will be used for measuring heavier ions such as Al-26, Cl-36, Sr-90 and I-129.