Diamond Light Source
Beamline I23 - Long Wavelength MX

The long-wavelength macromolecular crystallography beamline I23 is a unique facility for solving the crystallographic phase problem, using the small anomalous signals from sulphur or phosphorus which are present in native protein or RNA/DNA crystals. This is of increased importance for projects where protein labelling to introduce anomalous scatterers is not feasible. In addition, the beamline's wavelength range provides access to the M-edges of elements, with huge anomalous signals offering new opportunities for phasing large molecular complexes.

Beamline Energy Range
3 - 12 [eV]
Spot Size On Sample Hor
100 - 1000 [um]
Spot Size On Sample Vert
100 - 1000 [um]
Armin Wagner
  • Crystallography
  • Crystallography (biological macromolecules)
  • Medical application
  • X-ray tomography
  • Wide angle scattering
control/Data analysis
Control Software Type
  • GDA
Data Output Type
  • Image
Data Output Format
  • cbf, hdf5
Softwares For Data Analysis
  • XDS