I16 is a high flux, high resolution, hard X-ray beamline at Diamond Light Source Ltd.
The high flux on this beamline is essential for two key categories of study:
The intense, low-divergence undulator beam can be focused to a spot less than 50 by 200 microns, with an energy range that is continuously tuneable from 3.3 keV (below the uranium M-edges) to around 15- 25 keV depending on the optical configuration. Energies in the range 2.7-3.0 keV are now available but require a non-standard set-up to reduce air absorption and should be discussed with beamline staff.
A diamond crystal phase retarder is available to convert the linearly polarised X-ray beam to circular polarisation.
The large 6-circle kappa diffractometer supports several sample stages, giving temperatures down to ~4-6 K, and a wide variety of detectors including an in-vacuum Pilatus 100K photon-counting area detector. The diffractometer can operate in horizontal or vertical scattering geometries, or even mixed modes allowing fixed-alpha surface scattering measurements.
Linear polarisation analysis can be achieved with a novel in-vacuum analyser stage. A variety of analyser crystals can be installed to best match the energy and sample required. A high resolution in-vacuum Quad-Merlin detector sits on the analyser stage and can also be used for measurements of coherent diffraction.
A double-bounce silicon harmonic rejection mirror system provides exceptionally high harmonic rejection over a wide energy range.
The following may be available by arrangement:
If you have any comments, suggestions or corrections, please contact a member of the beamline staff.
Diamond Light Source is the UK's national synchrotron science facility, located at the Harwell Science and Innovation Campus in Oxfordshire.
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