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Figure 4
Neutron transmission images of weld samples. (a), (b) Images are integrated over the entire neutron spectrum of the NOBORU beamline. The two images are identical except for the increased brightness for image (b). (c) Neutron transmission image of weld samples integrated over the neutron wavelengths 1–4.16 Å normalized by the image obtained past the last Bragg edge (4.18–8 Å). Note the different scale of figure (c), where the entire area of weld samples A26 and A27 is shown. A relatively strong refraction at the edges of the samples is seen as bright lines around stainless steel and dark lines around titanium, surrounded by a bright halo, all attributed to refraction. Ti has a negative index of refraction, while for stainless steel it is positive.

Journal logoJOURNAL OF
APPLIED
CRYSTALLOGRAPHY
ISSN: 1600-5767
Volume 49| Part 4| August 2016| Pages 1130-1140
doi:10.1107/S1600576716006725
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