The GALAXIES beamline is dedicated to inelastic x-ray scattering (IXS) and hard x-ray photoemission (HAXPES). These spectroscopic techniques are powerful probes to characterize the electronic properties of materials. The beamline is optimized to operate in the 2.3 - 12 keV energy range with high resolution and micro beam.
GALAXIES comprises of two endstations for RIXS and HAXPES
Scientific opportunities
| Quantum materials |
Strongly correlated electrons Superconducting materials Mixed valent compounds; heavy fermions Oxide heterostructures ; interfaces |
|---|---|
| Energy materials, catalysis |
Metal complexes Chemical analysis in-situ Catalysis, electrochemistry |
| Extreme Conditions |
Phase transition under high pressure K-edge of light elements |
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Dilute Matter, Liquid phases |
Chemistry in solution Ultrafast molecular dynamics |
| Cultural heritage materials |
Chemical speciation Imaging |
Team
Associates and Partners
Associates :
Marc SIMON, Iyas ISMAIL, LCPMR, Sorbonne Université, Paris
Victor BALEDENT, LPS, Université Paris Saclay, Orsay
Matteo GATTI, LSI, Ecole Polytechnique
Academic Partners
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Funding Parners :
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Employment
access to the SOLEIL employment web page
Technical data
2.3 – 12 keV
ΔE from 100 meV to 1 eV at 8 keV
In-vacuum U20 undulator
linear (H)
linear (V), circular with a quarter wave plate
20 (V) x 80 (H) µm2 in standard mode, 5 (V) x 10 (H) µm2 in KB configuration
2-bounce fixed-exit monochromator Si111, DCM
4-bounce high-resolution monochromator (Si220 symetric and asymetric), HRM
Collimating and focusing mirrors; 2 mirrors in KB configuration
1.5x1012 ph/s (standard foc.), 5x1011 (micro-foc.) at 8 keV
Pixelated detectors
Si drift diodes
Avalanche diode
RIXS : 1-2m radius IXS spectrometer ; 0.5-1 m radius multi-analyzer setup (4x1 or 2x2)
HAXPES : high energy / high resolution electron analyzer (30 meV à 12 keV)
Layout
RIXS
IXS / RIXS / XES / RXES / HERFD-XAS
RIXS endstation
Energy range : ~4-12 keV
Spot size : 80 x 30 μm2 (H x V) [mode M2B] or 15 x 15 μm2 (H x V) [mode KB]
Includes several instruments
XES scanning / HERFD-XAS [MULTIXS]
4 crystals, R = 1m ou 0.5 m
Johann geometry
SDD Detector
XRS [MATRIXS]
Johann geometry
Si(110), 40 analyzers, R = 1m
2D hybrid pixelated 2D detector MERLIN (© QuantumDetector)
XES dispersive [VAMOXS / MOSARIX]
VAMOXS
Von Hamos dispersive geometry
8 x Si(110), 8 x Si(111), R :=0.5 m
2D hybrid pixelated 2D detector MERLIN (© QuantumDetector)
Accessible energy range : 4 - 12 keV
MOSARIX (Sorbonne Université)
Von Hamos dispersive geometry
2D hybrid pixelated 2D detector PILATUS 100K-M (© Dectris)
9 x HAPG graphite, R =0.5 m
Accessible energy range : 2 - 5 (12) keV
Sample Environments
- High pressure cells
- Low temperature cryostats : He flow / He closed loop / He Fast loading / He cryostat for high pressure
- High temperature
- Liquid microjet
- Liquide cell
HAXPES
Instrument
Hemispherical Analyzer SCIENTA EW4000
Ec < 12 keV, resolution = 150 meV
wide acceptance angle +/- 25°
Spot size : 80 x 30 μm2 (H x V)
Sample preparation
- UHV cleaving
- High temperature (900 °C)
- LEED
Sample environnements UHV
- 4 axes manipulator
- Low temperature (15 K)
- High temperature (900 °C)
- In-situ bias
- Liquid microjet
- Liquid cell
- Gas cell
References
Please use the following references when using the beamline equipments
Beamline
J.-P. Rueff, J. M. Ablett, D. Céolin, D. Prieur, Th. Moreno, V. Balédent, B. Lassalle, J. E. Rault, M. Simon, and A. Shukla, The galaxies beamline at soleil synchrotron: Inelastic x-ray scattering and photoelectron spectroscopy in the hard x-ray range, J. Synchrotron Rad. 22, 175 (2015).
HAXPES
D. Céolin, J.M. Ablett, D. Prieur, T. Moreno, J.-P. Rueff, B. Pilette, T. Marchenko, L. Journel, T. Marin, R. Guillemin, and M. Simon, Hard X-ray Photoelectron Spectroscopy on the GALAXIES beamline at the SOLEIL synchrotron, J. Elec. Spect. Relat. Phenom. 190, 188 (2013)
RIXS
J. M. Ablett,D. Prieur, D. Céolin, B. Lassalle-Kaiser, B. Lebert, M. Sauvage, Th. Moreno, S. Bac, V. Balédent, A. Ovono, M. Morand, F. Gélebart, A. Shukla and J.-P. Rueff, 'The GALAXIES inelastic hard X-ray scattering end-station at Synchrotron SOLEIL,' J. Synchrotron Rad. 26, 2019.
MULTIXS / VAMOXS
J. M. . Ablett, A. Berlioux, D. Prieur, J. Harrison, L. Heller, S.Gliga, and J.-P. Rueff, MULTIXS: A new scanning multi-analyzer x-ray emission spectrometer at the GALAXIES beamline at synchrotron SOLEIL, Review of Scientific Instruments 96 (2025), no. 5, 053104.
J. M. Ablett, and J.-P. Rueff, High energy resolution x-ray spectroscopy for materials studies at the GALAXIES beamline, synchrotron SOLEIL: HERFD-XAS, XES, and RXES, Synchrotron Radiation News, 1–6 (2025)
MOSARIX
I. Ismail, R. Moussaoui, R. Vacheresse, T. Marchenko, O. Travnikova, R. Guillemin, A. Verma, N. Velasquez, D. Peng, H. Ringuenet, F. Penent, R. Püttner, D. Céolin, J.-P. Rueff, and M. Simon, MOSARIX: Multi-crystal spectrometer in the tender x-ray range at SOLEIL synchrotron, Review of Scientific Instruments 95 (2024), no. 5, 053103.
HRM
J.M. Ablett, J.-M. Dubuisson, T. Moreno, D. Céolin, E. Raimon, D. Prieur, D. Corruble, J. Coquet, A. Lestrade, C. Bourgoin, and J.-P. Rueff, New Design Concept for a High-Resolution In-Vacuum 4-Bounce Hard X-Ray Monochromator at the GALAXIES Beamline at the SOLEIL Synchrotron, Journal of Physics Conferences Series, 425: art.n° 052007 (2013)
Downloads
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