Time-resolved spectroscopy of radiative and non-radiative decays in multiply charged ions

The beam-foil method has been used to investigate atomic structure and decay characteristics like lifetimes and transition probabilities. Studies of transition probabilities in Ne-like ions. These systems have attracted much interest since they are candidates for short-wavelength lasers. Investigation of core-excited states in the Na-isoelectronic sequence. These states are found above the first ionization limit and have a complicated decay scheme, involving both radiative and autoionization modes. Spectroscopic analyses of He- and Na-like systems. Here the emphasis is on obtaining accurate estimates of the quantum electrodynamic contributions to the groundstate energy. Lifetime measurements of multiply excited levels in FV. This study shows how fine details in the atomic structure may drastically affect the lifetimes. Decay properties in Al-like ions. An anomalous intensity ratio between several resonance transitions in the Al isoelectronic sequence is observed experimentally and investigated with different theoretical models. The lifetimes of low-lying quartet levels in Al-like ions have also been measured and compared with theoretical calculations. Spectral analyses of highly ionized bromine. The analyses have extended the earlier studies of Cr-, Mn- and Fe-like Br to incorporate also the lowest excited, metastable configurations