Towards Magnetic Moments Measurements in Heavy, Highly Charged Ions at ARTEMISONLINE ONLY

The AsymmetRic Trap for measurement of Electron Magnetic moments in IonS (ARTEMIS) utilizes the so-called laser-microwave double-resonance technique for measuring the magnetic moment of electrons bound in heavy, highly charged ions (HCIs). The extremely high field strength of the nearby nucleus in such HCIs enhances the effect of bound-state QED and nuclear interactions with the orbiting electron, making such measurements sensitive probes of these interactions. ARTEMIS has several design features that specifically enable this kind of measurement. The half-open Penning trap design allows for nearly 10 times more fluorescence light to be detected from the trap center compared to conventional open-ended Penning trap designs, and an indium-tin-oxide coated window allows transmission of the laser and microwave radiation while providing an electrode surface to apply the endcap potential to the trap. This talk will present the motivation behind g-factor measurements in heavy HCIs as well as the measurement setup in ARTEMIS and preparations toward external injection of ions from HITRAP @ GSI, and finally preliminary measurements with locally produced ions.