High-pressure monochromatic powder diffraction using a Bragg-Laue monochromator and a walker cell Original Research Article

The multi-anvil high-pressure facility on beamline 16.4 of the Synchrotron Radiation Source at Daresbury Laboratory has been upgraded from energy-dispersive diffraction operation to easily interchangeable energy-dispersive and angle-dispersive operation by the addition of a Laue–Bragg monochromator and an imaging plate detector. Details of the Laue–Bragg monochromator and endstation configuration are given. The performance of the end station is illustrated with data collected as part of a high temperature-pressure study of lawsonite.