High pressure studies powder / single-crystal Structural biology, supramolecular chemistry, magnetic / nuclear structures Structural biology, macromolecules, small molecules General purpose small & large unit cells diffuse scattering General purpose powder/single-crystal small unit cells Magnetic / nuclear structures small unit cellsĮlectric current, Tunable beam divergence < 20 PE cell < 6 PE cell < 2 clamp cell 0.6 Gas cell < 40 DACĪ suite-level review of the neutron powder diffraction instruments at Oak Ridge National Laboratory, Rev. High pressure studies powder/ single-crystalģ00 - 1500 Paris Edinburgh (high T insert)ġ0 - 1350 Diamond Anvil Cell (DAC) (bottom loader cryo) Typically 6 x 6 FWHM, Gaussian beam profile, generally 2cm filling height required. Typical 0.2 - 31.41, low Q limited to 0.4 in furnace and Orange cryo. More details can be found by following the links to the individual instrument and scientist pages below.Ģ4 position sample changer (10 - 300 K), Gas Handling with pO2 and RGAĭisordered materials, glasses, liquids high flux powderĤ25 - 11450 (ILL furnace, limited measuring time above 1100C)Ġ.02 - 0.2 gas cell (TiZr cell, high background)Ĭryostream sample changer gas handling, batteries The diffractometers are divided into three suites: powder diffraction instruments, single crystal instruments and advanced diffraction instruments. This group contains outstanding neutron scattering scientists with a wide range of scientific interests and expertise. ORNL hosts 12 diffractometers-7 at the Spallation Neutron Source and 5 at the High Flux Isotope Reactor-which are operated and maintained by the Diffraction group. Computing, modeling, and data analytics.Scientists and users at Oak Ridge National Laboratory use neutron scattering (diffraction) to observe and understand how the atomic-level magnetism and structure of materials correlates to their properties, which can lead to the development of new functional materials with highly desirable structures and properties as well as a deeper understanding of biological processes.Īt ORNL, research using neutron diffraction primarily focuses on six scientific themes:
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