Elimination of the inner-shell lifetime broadening in X-ray-absorption spectroscopy

A novel method to measure x-ray-absorption spectra without the inner-shell lifetime broadening is presented. It is based on a high-resolution spectrometer which can be used to analyze the fluorescence photon energy with better resolution than the natural linewidth. The dramatic improvement in resolu...

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Veröffentlicht in:	Physical review letters 1991-11, Vol.67 (20), p.2850-2853
Hauptverfasser:	HAMALAINEN, K, SIDDONS, D. P, HASTINGS, J. B, BERMAN, L. E
Format:	Artikel
Sprache:	eng
Schlagworte:	430400 - Particle Accelerators- Storage Rings 665100 - Nuclear Techniques in Condensed Matter Physics - (1992-) BREMSSTRAHLUNG CHEMICAL ANALYSIS COMPARATIVE EVALUATIONS CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY Condensed matter: electronic structure, electrical, magnetic, and optical properties DYSPROSIUM ELECTROMAGNETIC RADIATION ELEMENTS ENERGY RESOLUTION ENERGY-LEVEL TRANSITIONS EVALUATION Exact sciences and technology EXCITATION INNER-SHELL EXCITATION LEVEL WIDTHS METALS NONDESTRUCTIVE ANALYSIS Optical properties and condensed-matter spectroscopy and other interactions of matter with particles and radiation Other interactions of matter with particles and radiation PARTICLE ACCELERATORS Physics RADIATIONS RARE EARTHS RESOLUTION SYNCHROTRON RADIATION USES X-RAY EMISSION ANALYSIS X-RAY FLUORESCENCE ANALYSIS
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Beschreibung
Zusammenfassung:	A novel method to measure x-ray-absorption spectra without the inner-shell lifetime broadening is presented. It is based on a high-resolution spectrometer which can be used to analyze the fluorescence photon energy with better resolution than the natural linewidth. The dramatic improvement in resolution and detailed structure for the x-ray-absorption near-edge structure (XANES) at the Dy {ital L}{sub III} edge is presented. This new technique reveals structure which is totally invisible using conventional XANES.
ISSN:	0031-9007 1079-7114
DOI:	10.1103/physrevlett.67.2850