BM28

Synopsis

XMaS is a materials research beamline mainly dedicated to magnetic materials. It offers a wide range of techniques and sample environments facilitating studies of soft and hard condensed matter, physical chemistry, and solid and liquid interfaces.
Status:  open

Disciplines

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

Applications

  • Magnetic sensors and recording media
  • Semiconductor industry
  • Aerospace
  • Catalysis
  • Energy storage
  • Solar cells
  • Medical physics (cancer treatment)
  • Preservation of cultural heritage
  • Dental care

Techniques

  • X-ray scattering
  • XRR - X-ray reflectivity
  • XMCD - X-ray magnetic circular dichroism
  • GISAXS - grazing incidence small-angle scattering
  • WAXS - wide-angle X-ray scattering
  • Polarisation analysis

Energy range

  • 2.4 - 15.0  keV

Beam size

  • Minimum (H x V) : 20.0 x 20.0  µm²
  • Maximum (H x V) : 0.3 x 0.8  mm²

Sample environments

  • AC and DC electric fields
  • 4T magnetic field
  • 1K to 800K sample environment
  • Electrochemistry

Detectors

  • Avalanche photodiodes
  • Scintillators
  • Photodiodes
  • Ionisation chambers
  • MAR CCD camera

Technical details

The XMaS beamline can be operated in 3 different modes: (1) focused and monochromatic beam (2.4-15 keV), (2) unfocused and monochromatic beam (2.4-25 keV), (3) white beam (2.4-50 keV and above). At present, the beamline only uses a focused and monochromatic beam. XMaS also possesses a special cryostat and pumping system especially designed for actinides and transuranics, such as depleted uranium, plutonium, neptunium and cerium. X-ray scattering modes include resonant, non-resonant and magnetic scattering. Magnetic X-ray reflectivity measurements are also possible. The WAXS geometry is grazing incidence.

 

[1] Beamline paper: S.D. Brown et al., Journal of Synchrotron Radiation 8 (2001) 1172-1.

[2] Phase-plates: L. Bouchenoire et al.,Nucl. Inst. & Methods A 566 (2006) 733-738.

[3] Phase-plates: L. Bouchenoire et al., J. Synchrotron Rad., 10 (2003) 172-176.