Physics with Highly-Charged Ions in an EBIT

After the commissioning of the Freiburg electron beam ion trap, experiments on dielectronic recombination of the low-lying resonances in He-like Ar16+ have been carried out at high resolution. Forbidden transitions ( coronal lines ) of highly charged argon ions in the optical range have been measured with an accuracy around 1 ppm. Ions extracted from FreEBIT have been used to perform collision experiments using the Cold Target Recoil-Ion Momentum Spectroscopy (COLTRIMS) technique