Recent developments in precision mass spectrometry of radioactive isotopes (RI) and some
selected related physics subjects are reviewed. In the last decades, besides conventional …

The current status of bound state quantum electrodynamics calculations of transition
energies for few-electron ions is reviewed. Evaluation of one and two body QED correction …

Electrons bound in highly charged heavy ions such as hydrogen-like bismuth 209Bi82+
experience electromagnetic fields that are a million times stronger than in light atoms …

We report on the successful demonstration of a novel scheme for detecting optical
transitions in highly charged ions. We applied it to determine the frequency of the dipole …

Th 229 with a low-lying nuclear isomeric state is an essential candidate for a nuclear clock
as well as many other applications. Laser excitation of the isomeric state has been a long …

The hyperfine structure splitting in the 6 p 3 S 3/2 4→ 6 p 2 7 s P 1/2 4 transition at 307 nm in
atomic 208 Bi was measured with collinear laser spectroscopy at ISOLDE, CERN. The …

Laser spectroscopy stands out as a powerful tool to investigate atomic and nuclear
properties and also test fundamental theories by precisely measuring the energy levels in …

Laser cooling and precision laser spectroscopy of highly charged ions are considered as
frontiers of atomic physics research at heavy ion storage rings. A brief overview of the …

We report on laser spectroscopic measurements on Li+ ions in the experimental storage ring
ESR at the GSI Helmholtz Centre for Heavy Ion Research. Driving the 2 s S 3 1 (F= 3/2)↔ 2 …

The hyperfine splitting of the ground state of selected B-like ions within the range of nuclear
charge numbers Z= 49–83 is investigated in detail. The rigorous QED approach together …