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ID24-DCM (Double Crystal Monochromator) is a versatile EXAFS beamline covering a large energy range (5-45 keV), with variable flux on the sample (up to 8 10^13 photons/s), brilliance (up to 3 10^13 photons/s/microns), spot size (down to 0.6x0.6 microns FWHM) and time resolution (down to 1s/EXAFS). The beamline is operated in different modes (from fully focused to unfocused) depending on scientific case, sample heterogeneity and sample radiation hardness. It specifically targets experiments that require time-resolution, extreme conditions and microscopy combined with XES.
Status:  open


  • Physics
  • Earth and Planetary Sciences
  • Chemistry
  • Materials and Engineering


  • Solid state physics
  • Geosciences
  • Planetary Science
  • Catalysis
  • Materials science
  • Environmental science


  • EXAFS - extended X-ray absorption fine structure
  • FTIR - Fourier transform infrared spectroscopy/microscopy
  • MicroXANES - micro X-ray absorption near-edge structure
  • XAS - X-ray absorption spectroscopy
  • XMCD - X-ray magnetic circular dichroism

Energy range

  • 5.0 - 45.0  keV

Beam size

  • Minimum (H x V) : 0.6 x 0.6  µm²
  • Maximum (H x V) : 1000.0 x 1000.0  µm²

Sample environments

  • micro-XAS station
  • laser-heated DAC; resistive DAC, Paris Edinburgh Press, DAC-cryostat
  • in situ operando XAS/DRIFTS/MS and XAS/XRD/MS
  • 5 crystal analyser
  • 2D XRD


  • HV Ionization chambers
  • Photodiodes and Avalanche Photodiodes (APD)
  • Multi element Silicon Drift diodes
  • Single element SDD
  • Single element Ge
  • 5-crystals analyser

Technical details

time resolution down to 1s