Precision Mass Measurements with LEBIT at MSU

The Low-Energy beam and Ion Trap facility LEBIT opens the door to a new class of experiments with projectile fragment beams. The Coupled Cyclotron Facility at the NSCL delivers a large range of rare isotopes with high intensities, produced by the in-flight separation method. LEBIT converts these beams into low-energy beams using gas stopping and advanced ion guiding, cooling, and bunching techniques. The gas stopping cell has shown to efficiently stop relativistic ions and convert them into a low-energy continuous beam. The RFQ ion trap cooler-buncher shows excellent performance in converting such beams into brilliant pulses. First test mass measurements on stable isotopes performed with the 9.4 T Penning trap system show a very good accuracy. The status of LEBIT and the results of first measurments will be presented.