X-ray absorption spectroscopy and related techniques

Alojz Kodre,^a,b Iztok Arčon,^c,b and Jana Padežnik Gomilšek^d

^a Faculty of Mathematics and Physics, University of Ljubljana, Jadranska 19, SI-1000 Ljubljana, Slovenia

^b Jožef Stefan Institute, Jamova 39, SI-1000 Ljubljana, Slovenia

^c Nova Gorica Polytechnic, Vipavska 13, SI-5000 Nova Gorica, Slovenia

^d Faculty of Mechanical Engineering, University of Maribor, Smetanova 17, SI-2000 Maribor, Slovenia

Abstract

In the extensive field of X-ray diagnostic techniques, nowadays mostly implemented on synchrotron X-ray sources, the X-ray absorption methods offer a relatively simple tool for structural analysis of materials. The advantage of the methods is the sensitivity to chemical species and the insensitivity to the long-range order. An overview of various detection techniques is given together with the discussion of accuracy of the method with regard to the spatial resolution and the possible contamination by intra-atomic contributions, the multielectron photoexcitations.

Key words: X-ray absorption, EXAFS, XANES