Corelli: Efficient single crystal diffraction with elastic discrimination |
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Authors: | Stephan Rosenkranz Raymond Osborn |
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Institution: | (1) Materials Science Division, Argonne National Laboratory, Argonne, IL 60439, USA |
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Abstract: | Single crystal diffuse scattering provides one of the most powerful probes of short-range correlations on the 1–100 nm scale,
which often are responsible for the extreme field response of many emerging phenomena of great interest. Accurate modeling
of such complex disorder from diffuse scattering data however puts stringent experimental demands, requiring measurements
over large volumes of reciprocal space with sufficient momentum and energy resolution. Here, we discuss the potential of the
cross-correlation technique for efficient measurement of single crystal diffuse scattering with energy discrimination, as
will be implemented in a novel instrument, Corelli. Utilizing full experiment simulations, we show that this technique readily
leads up to a fifty-fold gain in efficiency, as compared to traditional methods, for measuring single crystal diffuse scattering
over volumes of reciprocal space with elastic discrimination.
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Keywords: | Neutron diffraction diffuse scattering elastic discrimination |
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