Synchrotron radiation as a spectroscopic research tool has undergone a most inter­ esting and astonishing historical development and has now come to the stage of an exciting boom. The machines which produce synchrotron radiation were built and de­ veloped exclusively for other purposes in the past, namely high-energy physics. At the same time, however, they involuntarily became better and better light sources for the spectral range from the visible to the hard x-ray region. Now we are at the point that the first few storage rings have gone into operation as machines dedicated to synchrotron radiation and several more are in the stage of construction and planning. All this was brought about by the successful research performed during the past fifteen years in which several groups allover the world haVe participated at dif­ ferent accelerator centers mostly symbiotic with high-energy physics. As it happens with a young and rapidly developing field, the number of reviews and monographs is still minute. The objective of this book is to fill an apparent gap and to provide a sound basis for those who are interested in synchrotron radiation and its applica­ tions.

1. Introduction - Properties of Synchrotron Radiation.- 1.1 Historical Development.- 1.2 Quantitative Properties.- 1.3 Comparison with other Sources.- 1.4 Acknowledgments.- References.- 2. The Synchrotron Radiation Source.- 2.1 Fundamental Concepts.- 2.2 Design Considerations.- 2.3. Design Examples.- References.- 3. Instrumentation for Spectroscopy and other Applications.- 3.1 Layout and Operation of Laboratories.- 3.2 Optical Components.- 3.3 VUV Monochromators.- 3.4 X-Ray Monochromators.- 3.5 Photon Detectors.- 3.6 Typical Experimental Arrangements.- 3.7 Acknowledgements.- References.- 4. Theoretical Aspects of Inner-Level Spectroscopy.- 4. 1. Basic Concepts and Relations in Radiative Processes.- 4.2 Distribution of Oscillator Strength.- 4.3 Electron-Hole Interactions.- 4.4 Configuration Interactions.- 4.5 Simultaneous Excitations and Relaxations.- 4.6 Many Body Effects in Metals.- 4.7 Final State Interactions Associated with Incomplete Shells.- 4.8 Inelastic X-Ray Scattering.- 4.9. Topics of Recent and Future Interest.- References.- 5. Atomic Spectroscopy.- 5.1. Atomic Photoabsorption Spectroscopy in the Extreme Ultraviolet.- 5.2 The Basic Experiments in Photoabsorption Spectroscopy.- 5.3 Limitations of Photon Absorption Experiments.- 5.4 The General Theoretical Framework.- 5.5 Experimental Results.- 5.6 Future Work.- References.- 6. Molecular Spectroscopy.- 6.1 Concepts.- 6.2 Absorption Spectroscopy.- 6.3 Photoelectron Spectroscopy.- 6.4 Fluorescence.- 6.5 Mass-Spectrometry.- 6.6. Acknowledgments.- 6.7. Appendix.- References.- 7. Solid-State Spectroscopy.- 7.1 Quantitative Description of Optical Properties.- 7.2 Metals and Alloys.- 7.3 Semi conductors.- 7.4 Insulators.- References.- Additional References with Titles.