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Figure 1
Vertical cross section through the biprism assembly. The two similar polished diamond bars A and B, cross sections 2 mm × 1 mm, meet along the biprism axis normal to the plane of the drawing. Ray X indicates the direction of X-rays transmitted by the biprism. For minimum deviation, the biprism assembly mirror line (dashed) coincides with direction X, and α1 = α2 = 45°. To obtain greater deviations the assembly is rotated about the biprism axis by angle ρ.

Journal logoJOURNAL OF
SYNCHROTRON
RADIATION
ISSN: 1600-5775
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