The principal aim of the Microfocus Beamline (ID13) is to provide small focal spots for diffraction and small-angle X-ray scattering (SAXS). Both single crystal and scanning diffraction experiments are performed. Other applications, like scanning X-ray microfluorescence are feasible.

The general beamline characteristics are as follows:

  • Sources: 18 mm period in-vacuum undulator optimized for 13 keV; 46 mm period, tunable undulator
  • Incident photon energy: variable between about 5 keV (Be cut-off) and about 17 keV (mirror cut-off). Higher energies are accessible without focusing
  • Monochromatisation: liq. N 2 cooled Si-111 double monochromator

Experimental Hutch I:

  • Microgoniometer with 5/10/30 µm beam sizes by Be refractive lens/aperture combination.
  • KB-mirror optics are under comissioning.
  • Primary uses include protein crystallography, small unit cell crystallography, fiber diffraction and special applications

Experimental Hutch II:

  • x/y/z scanning stage and air bearing rotation axis
  • Microbeam optics by Be refractive lenses and defining collimator (5 µm minimum beam size; Q min ≥ 0.1 nm -1)
  • Micron-sized beam optics by KB-mirror (approx. 1 µm design value)
  • In situ techniques (i.e. microfluidics, deformation, indentation etc..) available as a matter of routine.

Experimental Hutch III:

  • Primarily designed for nanodiffraction applications with beam sizes down to 100 nm and less.
  • Complimentary fluorescence experiments are possible (2 x Si drift Vortex detectors)
  • Nanobeams in routine use by KB-mirror focussing optics (approx. 250 nm)
  • Availability of nano-compatible in situ devices to be explored