Abstract
It is noted that diffraction spots decrease in size from the centre of the pattern where the spot caused by the direct beam is situated. This is usually the largest and brightest spot. The intensity of the other spots also decreases with increasing distance unless strong Laue zones are formed (see §3.4.3 and Plate 3). There are a number of reasons for this and some theory is available. It is, however, better to accept the facts and to regard each point on the reciprocal lattice as having its own fixed maximum diameter, assuming it to be a sphere for the present purpose. The actual spot recorded then depends on how the surface of the reflection sphere cuts these small spheres.
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© 1967 K. W. Andrews, D. J. Dyson, and S. R. Keown
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Andrews, K.W., Dyson, D.J., Keown, S.R. (1967). Geometrical effects. In: Interpretation of Electron Diffraction Patterns. Springer, Boston, MA. https://doi.org/10.1007/978-1-4899-6475-5_6
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DOI: https://doi.org/10.1007/978-1-4899-6475-5_6
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