A Bonse–Hart camera using a Bragg reflection with a small crystallographic structure factor will enable one to access correspondingly low Q values in small-angle diffraction. This is demonstrated for a neutron double-crystal diffractometer using GaAs 200 reflections, resulting in an increase in Q resolution by a factor of 6.1 as compared with a standard Si 220 setup.

X-ray ptychography was optimized at energies of 17 and 33.6 keV at the ESRF using Kirkpatrick–Baez mirrors.

Non-centrosymmetry effects and polarity determination in III–V semiconductors using CBED are discussed. It is shown that with carefully chosen diffraction conditions strong non-centrosymmetry effects may be observed in GaAs as well as in InP. The effects and their interpretation are discussed by means of the Bloch-wave theory and dynamical many-beam calculations.

High-resolution X-ray diffraction experiments based on synchrotron radiation are used to measure the values of lateral coherence length, vertical coherence length, tilt and micro-strain of GaAs epilayers grown on Si substrate using the conventional Williamson–Hall analysis. Such information could not be obtained on laboratory-based high-resolution X-ray diffraction systems.

Structural transformations in superlattices of Sb and P δ-layers upon annealing were studied in low-temperature grown GaAs. The combination of Sb and P δ-layers appears to be an effective tool for spatial patterning of arsenic nanoinclusions and prevention of the defect formation in the GaAs matrix.

The bending radii and strain of individual nanowires are determined using X-ray diffraction with a nano-focused beam and a dedicated diffraction theory for strongly bent crystals. Electron microscopy investigations corroborate the results.

This study introduces an optimized indirect X-ray microscope capable of achieving micrometre pixel size and megahertz acquisition speed, leveraging enhanced sensitivity in the near-ultraviolet spectrum and single-crystal fast-decay scintillators. This development enables high-resolution imaging for dynamic phenomena, exemplified by experiments with pulsed wire explosion and superheated near-nozzle gasoline injection.

Arrival timing diagnostics between a soft X-ray free-electron laser and synchronized optical laser pulses were performed at SACLA BL1.

The direction of energy flow for Bloch waves during X-ray dynamical diffraction in perfect crystals is investigated.

Arrival timing diagnostics between soft X-ray free-electron laser and synchronized optical laser pulses were performed at SACLA BL1.