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Three-Dimensional Particle Shape Analysis Using X-ray Computed Tomography: Experimental Procedure and Analysis Algorithms for Metal Powders
Published on: December 4, 2020
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Significant acceleration of solid-state NMR simulations via three-angle powder averaging
Elijah Burlinson1, Frédéric A Perras2
1Chemical and Biological Sciences Division, Ames National Laboratory, Ames, IA 50011, United States.
Journal of Magnetic Resonance (San Diego, Calif. : 1997)
|September 12, 2025
Summary
Accelerating NMR spectral calculations: By integrating rotor phase averaging into the main powder average, researchers can significantly speed up Nuclear Magnetic Resonance (NMR) spectral simulations, reducing computation time by an order of magnitude.
Area of Science:
- Solid-state Nuclear Magnetic Resonance (NMR) spectroscopy.
- Computational chemistry and materials science.
Background:
- Anisotropic frequency shifts in NMR depend on the orientation of interaction tensors relative to the magnetic field.
- Magic-angle spinning (MAS) experiments introduce a dependence on the rotor phase angle γ.
Purpose of the Study:
- To investigate methods for accelerating the computation time of NMR spectral simulations.
- To optimize the averaging process in magic-angle spinning experiments.
Main Methods:
- Implementing a combined powder and rotor phase (γ) averaging method.
- Eliminating redundant calculations of resonance frequencies in simulations.
Main Results:
- Achieved an order of magnitude acceleration in computation time for NMR spectral simulations.
- Demonstrated the efficiency of integrating γ-averaging into the main powder average.
Conclusions:
- The proposed method significantly enhances computational efficiency for solid-state NMR spectral analysis.
- This optimization streamlines the simulation process, enabling faster interpretation of NMR data.
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