High-Energy-Resolution Methods in X-ray Absorption Spectroscopy - 18/September 2017

Australia/Melbourne
NCSS Auditorium (Australian Synchrotron)

NCSS Auditorium

Australian Synchrotron

800 Blackburn Rd Clayton 3168 Victoria
Description

X-ray Absorption Spectroscopy (XAS) is a powerful technique to investigate chemistry, geometry and atomic near-range structure of, typically, heavier elements in almost any material. Traditionally, the specificity of XAS is dictated by the energy resolution of the photon beam incident on the sample, fundamental physical qualities such as broadening of the absorption edge of interest, and energy resolution of traditional fluorescence detectors. This is presently also the case at the Australian Synchrotron XAS Beamline. The corresponding limitations can be overcome by using multi-analyser crystal spectrometers. Application examples include site-selective XANES to investigate minor species, high-energy resolution XANES to cope with diffracting sample matrices, and X-ray Raman spectroscopy to investigate light element (O, C, N) K-edges using hard X-rays.

 

We invite you to join us... 

...for a workshop to explore high-energy-resolution methods in XAS and their applications to modern problems in science and research. Bringing together international experts, national community leaders, and the XAS community at large, the workshop marks the first step of developing a science case for high-energy-resolution XAS at the Australian Synchrotron and of building strong and productive links with the international high-resolution XAS community.

 

    • 09:45 10:00
      Registration
    • 10:00 10:15
      Welcome, Facility and XAS Beamline Perspectives
      Conveners: Prof. Michael James (Australian Synchrotron), Dr Peter Kappen (Australian Synchrotron)
    • 10:15 11:00
      Keynote 1 - Methods, Science, Frontiers: Dr Pieter Glatzel (ESRF, France): "Photon-in / Photon-out Spectroscopy"
      summary
    • 11:00 11:30
      Morning Tea 30m
    • 11:30 12:30
      Session 1: Science Examples
      • 11:30
        Dr. Rosalie Hocking, "The use of X-ray Spectroscopies to Design and Improve Electrocatalysts: A Technical Examination of Some Open Questions." 20m
        Speaker: Dr Rosalie Hocking (James Cook University)
      • 11:50
        Prof. Peter Lay, "XAS in bioinorganic metal speciation." 20m
      • 12:10
        Prof. Hugh Harris, "Opportunities for HERFD XANES in the study of heavy element chemistry in biology and the environment." 20m
    • 12:30 13:30
      Lunch 1h
    • 13:30 14:15
      Keynote 2 - Methods, Science, Frontiers: Dr Uwe Bergmann (Stanford PULSE Institute, SLAC National Accelerator Laboratory, United States of America): "Probing Chemical Reactions with High-Resolution X-ray Spectroscopy"
      summary
    • 14:15 15:15
      Session 2: Science Examples
      • 14:15
        Prof. Andrew Berry, "Uranium M-edge HERFD XAS." 20m
        Speaker: Andrew Berry (ANU)
      • 14:35
        Dr. Richard Collins, "Oxidation state specific EXAFS and enhanced trace metal environmental analyses." 20m
        Speaker: Dr Richard Collins (The University of New South Wales)
      • 14:55
        Prof. Ewen Silvester, "The environmental importance of low abundance metals in host oxides: FeII in FeIII oxides and MnII/MnIII in MnIV oxides as examples." 20m
        Speaker: Ewen Silvester (La Trobe University)
    • 15:15 15:45
      Afternoon Tea 30m
    • 15:45 16:15
      Panel & Audience Discussion
    • 16:15 16:20
      Workshop Close 5m
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