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Updated: Oct 1, 2025
High-Resolution Neutron Spectroscopy to Study Picosecond-Nanosecond Dynamics of Proteins and Hydration Water
Published on: April 28, 2022
A super-resolution technique to analyze single-crystal inelastic neutron scattering measurements using
Jiao Y Y Lin1, Gabriele Sala1, Matthew B Stone2
1Spallation Neutron Source Second Target Station, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA.
Abstract:
Direct-geometry time-of-flight chopper neutron spectroscopy is instrumental in studying dynamics in liquid, powder, and single crystal systems. We report here that real-space techniques in optical imagery can be adapted to obtain reciprocal-space super resolution dispersion for phonon or magnetic excitations from single-crystal neutron spectroscopy measurements. The procedure to reconstruct super-resolution energy dispersion of excitations relies on an accurate determination of the momentum and energy-dependent point spread function and a dispersion correction technique inspired by an image disparity calculation technique commonly used in stereo imaging. Applying these methods to spinwave dispersion data from a virtual neutron experiment demonstrates ∼5-fold improvement over nominal energy resolution.
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