Atomic spectroscopy with synchrotron radiation

The continuous spectrum extending from the infrared to the X-ray region, the high intensity, the time structure and the high degree of polarization of synchrotron radiation makes electron storage ring sources unique for atomic spectroscopy. Vacuum ultraviolet photons can excite loosely bound electrons to high energy continuum states and deeply bound core electrons to bound states below and continuum states above the ionization limit. The interaction between the different excitation channels strongly influences the spectra. Many-electron correlations often result in a complete break-down of the independent particle approximation. The impact of synchrotron radiation on atomic spectroscopy will be showcased by reviewing the most important recent experimental results together with the pertinent theoretical models. (orig.)