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The GALAXIES inelastic hard X-ray scattering end-station at Synchrotron SOLEIL
J M Ablett1, D Prieur1, D Céolin1
1Synchrotron SOLEIL, L'Orme des Merisiers, BP 48, Saint Aubin, 91192 Gif-sur-Yvette, France.
Journal of Synchrotron Radiation
|January 19, 2019
Summary
The GALAXIES beamline uses hard X-rays for high-resolution electronic structure studies. It enables advanced materials research, even under extreme conditions, with efficient data collection.
Area of Science:
- Materials Science
- Condensed Matter Physics
- Synchrotron Radiation Science
Background:
- Advanced materials research requires high-resolution techniques to probe electronic structure.
- Studying materials under extreme conditions (e.g., high pressure, catalysis) presents unique experimental challenges.
Purpose of the Study:
- To report the design and performance of the inelastic X-ray scattering (IXS) end-station at the GALAXIES beamline.
- To highlight the capabilities of the beamline for studying electronic structure using IXS and photoelectron spectroscopy.
- To showcase the suitability of the beamline for materials research under extreme conditions.
Main Methods:
- Utilizing an in-vacuum undulator hard X-ray micro-focused beamline (GALAXIES).
- Employing inelastic X-ray scattering (IXS) and photoelectron spectroscopy.
- Operating in both non-resonant (NR-IXS) and resonant (RIXS) modes across an energy range of ~4-12 keV.
- Implementing `photon-in/photon-out' techniques and advanced sample environments (e.g., diamond anvil cells, catalysis chambers).
Main Results:
- Demonstration of high energy resolution for electronic structure determination.
- Successful operation of the IXS end-station across the specified energy range.
- High experimental throughput achieved through `on the fly' scanning of X-ray energies and sample positions.
- Capability to generate circularly polarized light using a diamond X-ray transmission phase retarder for RIXS-MCD (Magneto-Circular Dichroism) studies.
Conclusions:
- The GALAXIES beamline is a powerful tool for advanced materials characterization.
- Its design facilitates the study of electronic structure, particularly under extreme conditions.
- The beamline's capabilities support high-throughput experiments and novel techniques like RIXS-MCD.
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