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Title: Dispersive XAS on a High Brilliance Source: Highlights and Future Opportunities

Abstract

Energy Dispersive X-ray Absorption Spectroscopy is a now a well-established method which has been applied to a broad range of applications. Ten years from the construction of beamline ID24 at the ESRF, the first dispersive XAS spectrometer using undulator radiation on a third generation source, we report an overview of recent results in very diverse fields of research, ranging from automotive catalysts to magnetism at extreme conditions. We also illustrate how pushing the instrument to its limits has opened new opportunities, such as an enhanced sensitivity to detection of tiny atomic displacements and the potential for micro-probe redox and speciation imaging.

Authors:
; ; ; ; ;  [1];  [2];  [3];  [4];  [5]
  1. European Synchrotron Radiation Facility, 6 rue J. Horowitz, 38043 Grenoble (France)
  2. Bayerisches Geoinstitut, Universitaet Bayreuth, D-95440 (Germany)
  3. Laboratoire de Geodynamique des Chaines Alpines, Universite Joseph Fourier, 38041 Grenoble (France)
  4. (France)
  5. Istituto Nazionale di Ricerca Metrologica (INRIM), Turin (Italy)
Publication Date:
OSTI Identifier:
21054694
Resource Type:
Journal Article
Resource Relation:
Journal Name: AIP Conference Proceedings; Journal Volume: 882; Journal Issue: 1; Conference: XAFS13: 13. international conference on X-ray absorption fine structure, Stanford, CA (United States), 9-14 Jul 2006; Other Information: DOI: 10.1063/1.2644607; (c) 2007 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; ABSORPTION SPECTRA; ABSORPTION SPECTROSCOPY; ATOMIC DISPLACEMENTS; CATALYSTS; CHEMICAL STATE; EUROPEAN SYNCHROTRON RADIATION FACILITY; MAGNETISM; PROBES; SENSITIVITY; WIGGLER MAGNETS; X-RAY SPECTRA; X-RAY SPECTROSCOPY

Citation Formats

Pascarelli, S., Aquilanti, G., Guilera, G., Mathon, O., Newton, M. A., Trapananti, A., Dubrovinsky, L., Munoz, M., European Synchrotron Radiation Facility, 6 rue J. Horowitz, 38043 Grenoble, and Pasquale, M. Dispersive XAS on a High Brilliance Source: Highlights and Future Opportunities. United States: N. p., 2007. Web. doi:10.1063/1.2644607.
Pascarelli, S., Aquilanti, G., Guilera, G., Mathon, O., Newton, M. A., Trapananti, A., Dubrovinsky, L., Munoz, M., European Synchrotron Radiation Facility, 6 rue J. Horowitz, 38043 Grenoble, & Pasquale, M. Dispersive XAS on a High Brilliance Source: Highlights and Future Opportunities. United States. doi:10.1063/1.2644607.
Pascarelli, S., Aquilanti, G., Guilera, G., Mathon, O., Newton, M. A., Trapananti, A., Dubrovinsky, L., Munoz, M., European Synchrotron Radiation Facility, 6 rue J. Horowitz, 38043 Grenoble, and Pasquale, M. Fri . "Dispersive XAS on a High Brilliance Source: Highlights and Future Opportunities". United States. doi:10.1063/1.2644607.
@article{osti_21054694,
title = {Dispersive XAS on a High Brilliance Source: Highlights and Future Opportunities},
author = {Pascarelli, S. and Aquilanti, G. and Guilera, G. and Mathon, O. and Newton, M. A. and Trapananti, A. and Dubrovinsky, L. and Munoz, M. and European Synchrotron Radiation Facility, 6 rue J. Horowitz, 38043 Grenoble and Pasquale, M.},
abstractNote = {Energy Dispersive X-ray Absorption Spectroscopy is a now a well-established method which has been applied to a broad range of applications. Ten years from the construction of beamline ID24 at the ESRF, the first dispersive XAS spectrometer using undulator radiation on a third generation source, we report an overview of recent results in very diverse fields of research, ranging from automotive catalysts to magnetism at extreme conditions. We also illustrate how pushing the instrument to its limits has opened new opportunities, such as an enhanced sensitivity to detection of tiny atomic displacements and the potential for micro-probe redox and speciation imaging.},
doi = {10.1063/1.2644607},
journal = {AIP Conference Proceedings},
number = 1,
volume = 882,
place = {United States},
year = {Fri Feb 02 00:00:00 EST 2007},
month = {Fri Feb 02 00:00:00 EST 2007}
}
  • ID24 is the energy dispersive beamline of the European Synchrotron Radiation Facility dedicated to X-ray Absorption Spectroscopy (XAS). Thanks to the parallel acquisition mode that allows data in a large energy range to be collected simultaneously, XAS using dispersive optics is particularly suited for the study of time dependent processes. The techniques that can be used to study such systems vary according to the timescale of the phenomena under investigation. They take advantage of the temporal structure of the synchrotron radiation in case of time resolution of the order of the intrinsic duration of the x-ray pulse (100 ps), whilemore » for time scales above 100 {mu}s or below 100 ps, the x-ray beam can be considered continuous and the time resolution is determined by the different detection systems.« less
  • DESY in Hamburg, Germany, has decided to reconstruct its 2.304 km long storage ring PETRA II into a third generation synchrotron radiation source starting 2007. The synchrotron source will operate at 6 GeV particle energy, 100 mA current and an emittance of 1 nmrad. In the first phase thirteen independent undulator beamlines will be available for user experiments.
  • X-rays have been valuable to a large number of fields including Science, Medicine, and Security. Yet, the availability of a compact high-spectral brilliance X-ray sources is limited. A technique to produce X-rays with spectral brilliance B{approx} 10{sup 12} photons.(mm-mrd){sup -2}. (0.1% BW){sup -1}.s{sup -1} is discussed. The method is based on the generation and acceleration of a low-emittance field-emitted electron bunches. The bunches are then focused on a diamond crystal thereby producing channeling radiation. In this paper, after presenting the overarching concept, we discuss the generation, acceleration and transport of the low-emittance bunches with parameters consistent with the production ofmore » high-brilliance X-rays through channeling radiation. We especially consider the example of the Advanced Superconducting Test Accelerator (ASTA) currently in construction at Fermilab where a proof-of-principle experiment is in preparation.« less