A suite-level review of the neutron single-crystal diffraction instruments at Oak Ridge National Laboratory

Area of Science:

• Materials Science
• Crystallography
• Neutron Scattering

Background:

• Single-crystal neutron diffraction is a powerful technique for studying material structures.
• Advanced instrumentation is crucial for maximizing the capabilities of neutron diffraction.

Purpose of the Study:

• To highlight the capabilities of the new single-crystal neutron diffractometers at Oak Ridge National Laboratory.
• To emphasize the potential of these instruments for advancing the study of nuclear and magnetic structures.

Main Methods:

• Utilizing state-of-the-art single-crystal neutron diffractometers.
• Applying neutron diffraction to analyze small unit cell crystals, macromolecules, and diffuse scattering.

Main Results:

• The new diffractometers offer unparalleled capabilities for neutron scattering research.
• High-resolution analysis of nuclear and magnetic structures, including spin density, is achievable.
• Contrast variation using D2O/H2O and studies of diffuse scattering are key applications.

Conclusions:

• The instrumentation at Oak Ridge National Laboratory is poised to re-establish single-crystal neutron diffraction as a leading technique.
• These facilities will enable significant advancements in understanding nuclear and magnetic structures, particularly for materials with small unit cells and biological macromolecules.