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Figure 1
(a) Three coplanar reflections for a cubic crystal: [\bar{2}11], [2\bar{1}2] and 005, coloured red, green, and blue, respectively. The Q vectors are represented by dashed arrows, and their lengths are equal to d−1/2, or simply d−1 because the denominator cancels out. The triple intersection is highlighted by a small magenta circle (ti). The radius of the large circle is equal to k0, which is equal to λ−1. The red, green and blue solid lines show the cone projections along Q1 × Qi. (b) A three-dimensional representation of (a) to show that the intersection occurs out of the plane common to Q1, Q2 and Q3.

Journal logoJOURNAL OF
APPLIED
CRYSTALLOGRAPHY
ISSN: 1600-5767
Volume 56| Part 4| August 2023| Pages 1046-1050
https://doi.org/10.1107/S1600576723004120
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