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Figure 4
(a) Thermal diffuse scattering intensity calculated for gold, ITDS, as a function of the angular offset from the direct X-ray beam in the equatorial plane, 2θ. (b) Corresponding phonon dispersion relation. Blue corresponds to the longitudinal acoustic (LA) mode, orange and red correspond to the transverse acoustic (TA) modes. The solid black line in (a) corresponds to the summation over all the branches. The dashed vertical black lines in (a) and (b) represent the angular offset for the analysers used in the discussed experiment.

Journal logoJOURNAL OF
SYNCHROTRON
RADIATION
ISSN: 1600-5775
Volume 29| Part 4| July 2022| Pages 931-938
https://doi.org/10.1107/S1600577522004453
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