HOLZ bar

In convergent-beam electron-diffraction (CBED) patterns at a zone axis orientation, the bright-field disc is often intersected by a set of fine dark lines known as higher-order Laue zone (HOLZ) lines. These lines result from high-angle scattering, causing higher-order Laue reciprocal planes to intersect the Ewald sphere. 

HOLZ4 is an interactive program that simulates these HOLZ lines using kinematical approximation and a first-order dynamic correction. The main features are listed here,

  • Intensity Threshold Adjustments: Easy adjustments for intensity thresholds.
  • Index Display: Updated display system to show indices on the entire CBED pattern and on HOLZ lines.
  • Crystal Constraint: Introduced for tuning lattice parameters.
  • Figure Preparation Tools: Provided figure label tool and region of interest (ROI) feature for preparing publication-ready figures.
  • File Saving Formats: Integrated interface for saving files in TIFF, PNG, JPEG, and GIF formats.
HOLZ figure

GUI of the HOLZ4 in HOLZ lines in bright-field disc mode. The simulation is done with an Al crystal structure along [100] zone axis and 200 kV.