BM25B

Synopsis

SpLine Branch B is devoted to material science in the energy range 5-45 keV. Facilities are available for surface/interface, grazing incidence, and single crystal X-ray diffraction and hard X-ray photoelectron spectroscopy.
Status:  open

Disciplines

  • Physics
  • Materials and Engineering
  • Chemistry
  • Cultural Heritage
  • Environmental Sciences
  • Life Sciences

Applications

  • Materials science: correlation of structure and morphology of complex systems with their magnetic, electronic and ferroelectric properties

Techniques

  • GID - grazing incidence diffraction
  • XRD - X-ray diffraction
  • SAXS - small-angle X-ray scattering
  • HAXPES - hard X-ray photoelectron spectroscopy
  • SXRD - surface X-ray diffraction

Energy range

  • 5.0 - 45.0  keV

Beam size

  • Minimum (H x V) : 0.4 x 0.3  mm²
  • Maximum (H x V) : 10.0 x 10.0  mm²

Sample environments

  • GID station: UHV baby chambers, magnets, cryostats and reactor cells easily accommodated (up to 50 kg)
  • HAXPES: ultra high vacuum system with 130° in-plane access and a 50° out-of-plane access

Detectors

  • Point detector
  • 2D CCD area detector (active area of 250 mm x 125 mm)
  • Crystal analyzer
  • Scintillation detector
  • Electrostatic analyzer (HAXPES)

Technical details

SpLine Branch B permits hard X-ray photoelectron spectroscopy to be combined with diffraction. Surface diffraction is possible for free surfaces, interfaces, superlattices and thin films. The beamline incorporates high technology components for the realization of material science experiments: high precision diffractometer, scintillation detector, cryostream, beam intensity photodiodes, UHV baby chamber, high pressure chambers, microposition sample holder, charged-coupled devices, electron gun, ion gun, MBE evaporators, gas leak valves, mini-LEED, high kinetic energy electron analyzer, load-lock sample fast entry, UV-discharge lamp, etc.