Condensed Matter Investigations
The neutron has unique properties that make it one of the
most important probes for the study of condensed matter. Applications
range from solid state physics to chemistry to
biology and materials science. Important properties
include the scattering amplitudes, which are substantial
for light elements as well as heavy elements, making it possible
to observe all of the atoms in a crystal with good precision
and contrast between nearby elements in the periodic chart. In
addition, the neutron's magnetic moment makes it sensitive
to the arrangement of magnetic atoms in solids. Finally, the
energy of the neutron is comparable to lattice vibrations
or magnetic excitations in solids, allowing for their study by
measuring the change in neutron energy after interaction (inelastic
scattering).
Instrument Development
MURR has developed state-of-the-art instruments to take advantage
of these possibilities, especially through the use of novel tools
of focusing neutron optics and position sensitive detection of
the scattered neutrons. These tools have led to some very high
performance instruments, competitive with those at much higher
flux neutron sources. Neutron scattering studies at MURR are
supplemented with complementary tools and techniques as well.
The following pages describe the instruments and the techniques:
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