An x-ray emission spectrometer with unique capabilities at CLÆSS beamline of ALBA synchrotron
by
Konstantin Klementiev, Experiments Division-ALBA Synchrotron, Bellaterra, Barcelona, Spain
→
Europe/Berlin
AER 19, Room 4.14
AER 19, Room 4.14
Description
The x-ray emission spectra of d- and f-elements are rich of various spectroscopic features. A number of recent publications have shown these features to have chemical dependence. This opens up a possibility for the absorption spectroscopy to become not "just" element specific but also _site-selective_ i.e. revealing atomic and electronic structure around specific atoms: being of a given valence or spin state, surrounded by selected ligands etc. On one side, there are many good objects very well suitable for the emission spectroscopy but, on the other hand, the spectrometers are required to be of high performance.
A new unique x-ray emission spectrometer is being built at the Core Level Absorption & Emission Spectroscopies (CLÆSS) beamline of ALBA synchrotron and soon will be offered to the scientific community for studying very demanding objects. Its original optical scheme has a number of advantages over the standard designs in terms of efficiency, energy tunability, energy resolution and suitable sample environment. Conceptual and engineering aspects of the spectrometer will be considered in the presentation.
A general overview of the ALBA project and the CLÆSS beamline will be given as well.
