Research news on Neutron techniques

Neutron techniques encompass a group of experimental methods that use beams of thermal, cold, or fast neutrons to probe the structure, dynamics, and magnetic properties of materials at atomic to mesoscopic length scales. Principal methods include neutron diffraction for crystallographic and magnetic structure determination, small-angle neutron scattering (SANS) for studying nanoscale inhomogeneities, and inelastic or quasielastic neutron scattering for characterizing lattice vibrations, molecular motions, and spin excitations. These techniques exploit the neutron’s charge neutrality, nuclear-specific scattering cross sections, and magnetic moment, enabling high sensitivity to light elements, isotopic contrast variation, and direct measurement of magnetic correlations in condensed-matter, soft-matter, and biological systems.

Neutron capture experiment sheds light on ancient stardust

Niobium-94, an isotope of niobium with 41 protons and 53 neutrons, is a critical crossroads in the complex nuclear processes that forge heavy elements under the intense pressures and temperatures of dying stars. In an article ...

Ultracold neutrons don't disappear into the mirror world

For decades, a theory in physics has postulated the existence of a mirror world whose interaction with our own reality is extremely feeble. The particles in this mirror universe are also thought to be candidates for dark ...

NASA's water-hunting tool will help scout moon's South Pole

NASA is joining international partners to hunt for ice on the moon in support of future human exploration. The agency is providing a water-detecting instrument, the Neutron Spectrometer System (NSS), to the Lunar Polar Exploration ...

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