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Figure 2
Illustration of the difference between the SE approximation and the explicit phase calculation for quasielastic scattering. Panels (a) and (d) show two dynamic structure factors whose transformation into the time domain is shown in graphs (b) and (c), and (e) and (f), respectively, as indicated by their colour. The transformation calculated by the SE approximation is shown as circles, while the solid lines depict the result of equation (21)[link]. The wavelength of the incoming neutron beam was assumed to be monochromatic and λ = 6.0 Å, which corresponds to Ei = 2.27 meV.

Journal logoJOURNAL OF
APPLIED
CRYSTALLOGRAPHY
ISSN: 1600-5767
Volume 58| Part 4| August 2025| Pages 1122-1137
https://doi.org/10.1107/S1600576725003620
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