By Peter Wobrauschek, Peter Kregsamer, Christina Streli, Hannes Aiginger (auth.), Charles S. Barrett, John V. Gilfrich, I. C. Noyan, Ting C. Huang, Paul K. Predecki (eds.)

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Additional resources for Advances in X-Ray Analysis: Volume 34

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For present synchrotron radiation sources this means concentrations ;::tOO ppm and surface loadings down to about half-monolayer coverage. It is the purpose of this short account to introduce the basic principals of the technique and to demonstrate briefly its considerable versatility in tackling new types of problems in Surface Chemistry. Examples are taken from recent work undertaken at the Synchrotron Radiation Source (SRS) at Daresbury Laboratory in the UK. This is a 2 GeV machine and runs typically with a beam current of 150-200 rnA.

20. 21. 22. 23. 24. 25. 26. 27. 28. 29. 30. 31. 32. Horiuchi, Rev. Sci. Instr. Wobrauschek, Nucl. Instr. Meth. Aiginger, Anal. Chern. Aiginger, X-Ray Spectrom. Schwenke, Fresenius Z. Anal. Chern. Chem. Weisbrod, /Adv. X-Ray Anal. Prange, Adv. X-Ray Anal. Gohshi, Anal. Chern. Meth. Hub, Spectrochim. Hub, Fresenius Z. Anal. Chern. Weisbrod, Fresenius Z. Anal. Chern. Rode, J. Appl. Phys. Knoth, Nucl. Instr. Meth. Wobrauschek, Adv. X-Ray Anal. Inst. Meth. Opt. Carpenter, X-Ray Spectr. X-Ray Anal. Dobbyn, Anal.

Gohshi, Adv. X-Ray Anal. Schuster, Adv. , to be published in same Vol. D. de Boer, Spectrochim. Acta, to be published D. de Boer, Adv. N. Greaves SERC Daresbury Laboratory, Warrington WA4 4AD, UK and Depanment of Chemistry, University of Keele, Keele Staffs. ST5 5BG, UK ABSTRACT The use of glancing angles of incidence enables X-ray Absorption Spectroscopy to be measured as a function of depth from the surface of a material into the bulk. As x-rays rather than photoelectrons are detected, a UHV environment is not required and instead surfaces and interfaces can be examined under realistic operational conditions.

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