with highly charged ions at low energies: ARTEMIS : magnetic moments in highly charged ions (g-factors) SPECTRAP : laser spectroscopy with highly charged ions HILITE : atoms and ions in extreme laser fields [...] HITRAP is a ion trap facility which is designed for capturing and cooling of highly charged ions (HCI) produced at the GSI-accelerator complex. In the HITRAP facility heavy highly charged ions will be available [...] bare nuclei (up to uranium U 92+ ), hydrogen-like ions or few-electron systems at low temperatures. Highly charged ions are accelerated in the heavy-ion synchrotron SIS, stripped in a foil to the desired