Time-dependent dynamical Bragg diffraction in deformed crystals by the beam propagation method

A novel method is presented of simulating dynamic diffraction in distorted crystals using a fast Fourier transform based beam propagation approach.

Extending the novel |ρ|-based phasing algorithm to the solution of anomalous scattering substructures from SAD data of protein crystals

The novel S_M,|ρ| phasing algorithm has been adapted to the determination of anomalous scattering substructures from single-wavelength anomalous diffraction (SAD) data of protein crystals and successfully tested on data sets mostly retrieved from the Protein Data Bank.

Simulating dark-field X-ray microscopy images with wavefront propagation techniques

The simulation of a dark-field X-ray microscopy experiment using wavefront propagation techniques and numerical integration of the Takagi–Taupin equations is shown. The approach is validated by comparing with measurements of a near-perfect diamond crystal containing a single stacking-fault defect.

On the determination of dense coincidence site lattice planes

Given two three-dimensional lattices oriented so that they share a three-dimensional sublattice, a method for determining planes with high densities of coinciding lattice nodes is presented. The densest planes are determined for coinciding cubic lattices.

Piecewise-linear embeddings of decussate extended θ graphs and tetrahedra

The simplest (lowest transitivity) piecewise-linear tangles of extended nθ graphs, including 1-, 2- and 3-periodic linked tangles, are presented.

Ambiguity in indexing electron diffraction patterns of R3 crystals

Pseudosymmetric operations in R3 crystals and their role in generating ambiguous electron diffraction patterns are discussed.

On single-crystal total scattering data reduction and correction protocols for analysis in direct space. Corrigendum

Corrigendum to the article by Koch et al. [Acta Cryst. (2021). A77, 611–636].

A First Course in Group Theory

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