The TRIAX instrument is used to investigate the
forces between atoms in solid and liquids, through inelastic
scattering, and the diffusive motion of atoms (especially
hydrogen) through quasielastic scattering, which is the energy
broadening of the incident spectrum due to these motions. The
first technique usually requires single crystal samples with
typically 1 cm3 volume, while samples for quasielastic scattering
may be single crystal or polycrystal, depending on the nature
of the exact problem.
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