Powder diffraction is used to examine small, weakly interacting crystals in random orientations. Many materials exist as powders or in polycrystalline form, including ceramics, metals, superconductor oxides, pharmaceuticals, geochemicals, zeolites and related porous solids, all of which can be studied with powder diffraction. The technique can be used to study polycrystalline materials such as metals and alloys.
High quality, high resolution powder patterns will be recorded with short scan times via multi-element analyser stages while fast, wide-angle position sensitive detectors will allow the rapid collection of powder patterns in time-resolved studies in non-ambient conditions.
The high resolution opens the possibility of novel studies of phase transitions in large macromolecules as a function of temperature, leading to improved methods for the preparation of large single crystals. The high intensity X-rays can probe more deeply into the sample than laboratory techniques, and the use of resonant diffraction allows complex structures with low "normal" electron contrasts to be studied.
New research studies will include the refinement of the structures and P-T mapping of organic molecular pharmaceutical solids; determination of the effect of competing effects in highly correlated oxides and chalcogenides; the study of structural changes in polymer lithium ion conductors; the structure of porous materials and of nanoscale systems formed by inclusion within the pores and the time dependence of the intersite cation ordering in mineral phases.
Technological areas studied with this technique include catalysis, energy storage, radioactive waste treatment, magnetic recording, structural biology and pharmaceuticals.
I12 is a high-energy beamline principally for Material Science, Engineering and Processing Science. The instrument’s main focus is to allow in situ studies of samples in environments as close as possible to real world environments using imaging, tomography, diffraction and small-angle scattering. I12 is particularly well suited to study large or dense objects and offers a unique sample and environment installation facility for weights up to 2000 kg.More information
I11 is a high resolution powder diffraction beamline for structural crystallography using an undulator source. This beamline specialises in investigating the structure of complex materials, including metal-organic frameworks, high temperature superconductors, ceramics, alloys, zeolites and minerals under non-ambient, time-resolved, and long duration conditions.More information
XPDF (I15-1) is a dedicated X-ray Pair Distribution Function beamline. The pair distribution function allows researchers in fields as diverse as materials chemistry; solid-state physics; eartch science; and pharmaceuticals to gain insight into the local structure of crystalline, amorphous, and liquid materials both ex situ and in situ.More information
I15, the extreme conditions beamline, is a high energy diffraction and scattering beamline used to explore planetary interior conditions, as well as other experiments requiring high pressures and non-ambient temperatures.More information
µX-ray absorption spectroscopy, µX-ray fluorescence imaging and µdiffraction using high-brightness focused X-ray beam. Other techniques available include X-ray Excited Optical Luminescence (XEOL), X-ray Fluorescence Tomography, Fluorescence ReflEXAFS, Differential Phase Contrast Imaging.More information
B18 is a general purpose EXAFS beamline. The Core-EXAFS is used for an extensive range of studies and applications, including local structure and electronic state of active components, and the study of materials including fluids, crystalline and non-crystalline (amorphous phases & colloids) solids, surfaces and biomaterials.More information
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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