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Figure 8
(Left) Schematic illustration of the two measurement configurations, EQ-SANS (Q = TD–RD) and GP-SANS (Q = RD–ND), for Zy4–34–1934d–163MPa, where ki is the incident neutron wavevector. This illustration assumes that the deuteride habit plane corresponds to the texture (0001)Zr pole. The illustration demonstrates that the deuteride plates are close to being orthogonal to ki = ND, which reduces the Porod intensity for the EQ-SANS orientation since the platelets preferentially lie in the Q plane. (Right) Cross section illustration of the two measurement configurations, showing weak Porod scattering when the deuteride platelet normal vectors coincide with the incident beam direction (top) and strong Porod scattering when the normal vectors are orthogonal to ki (bottom). A large fraction of the interfacial area is orthogonal to the Q plane in the bottom right orientation, and this leads to strong Porod scattering.

Journal logoJOURNAL OF
APPLIED
CRYSTALLOGRAPHY
ISSN: 1600-5767
Volume 51| Part 3| June 2018| Pages 768-780
https://doi.org/10.1107/S160057671800479X
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