An Introduction to Neutron Scattering - Spallation Neutron Source
An Introduction to Neutron Scattering - Spallation Neutron Source
An Introduction to Neutron Scattering - Spallation Neutron Source
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We Have Seen How <strong>Neutron</strong> <strong>Scattering</strong><br />
Can Determine a Variety of Structures<br />
crystals<br />
X-Ray<br />
β = 3.9(3)<br />
β = 5.2(3)<br />
β = 4.4(2)<br />
β = 3.1(3)<br />
0.20(1)nm<br />
<strong>Neutron</strong><br />
1.9(2)nm a-FeOOH β = 4.4(8)<br />
10.7(2)nm Fe<br />
2.1(2)nm<br />
0.44(2)nm<br />
0.07(1)nm<br />
interface<br />
0.03(1)nm<br />
MgO<br />
but what happens when the a<strong>to</strong>ms are moving?<br />
Can we determine the directions and<br />
time-dependence of a<strong>to</strong>mic motions?<br />
Can well tell whether motions are periodic?<br />
Etc.<br />
β = 8.6(4)<br />
β = 6.9(4)<br />
β = 6.2(5)<br />
surfaces & interfaces disordered/fractals biomachines<br />
These are the types of questions answered<br />
by inelastic neutron scattering
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