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XAFS experiments at beamline I811, MAX-lab synchrotron source, Sweden
Stefan Carlson1, Maria Clausén, Lidia Gridneva
1MAX-lab, Lund University, PO Box 118, SE-22100 Lund, Sweden. stefan.carlson@maxlab.lu.se
Journal of Synchrotron Radiation
|August 23, 2006
Summary
A new X-ray absorption spectroscopy facility at MAX-lab offers advanced materials analysis. This beamline enables high-flux experiments for diverse materials, including dilute systems.
Area of Science:
- Materials Science
- Synchrotron Radiation Physics
- Spectroscopy
Background:
- MAX-lab synchrotron source in Lund, Sweden, houses the I811 materials science beamline.
- The beamline utilizes a superconducting multipole wiggler source on the MAX-II ring.
Purpose of the Study:
- To describe the new X-ray absorption spectroscopy (XAS) facility at the I811 beamline.
- To detail the capabilities and performance of the new XAS setup.
Main Methods:
- X-rays (2.4-12 keV) are extracted using a standard optical scheme with mirrors and a double-crystal monochromator.
- Sagittal focusing is achieved by the second monochromator crystal.
- The facility supports transmission, fluorescence, and total-electron-yield modes.
Main Results:
- The beamline delivers a flux of 5 x 10(11) photons/s at 9 keV.
- A minimum beam spot size of 0.5 mm x 0.5 mm is achievable.
- Successful experiments have been conducted on materials with very low metal concentrations (<10 ppm).
Conclusions:
- The I811 beamline provides a powerful new resource for X-ray absorption spectroscopy.
- The facility's high flux and versatile detection modes enable advanced studies on a wide range of materials.
- International research groups are utilizing the beamline for cutting-edge materials science investigations.
