A software tool for automatic analysis of selected area diffraction patterns within Digital Micrograph

C. H. Wu, W. T. Reynolds, M. Murayama

Research output: Contribution to journalArticle

11 Citations (Scopus)

Abstract

A software package "SADP Tools" is developed as a complementary diffraction pattern analysis tool. The core program, called AutoSADP, is designed to facilitate automated measurements of d-spacing and interplaner angles from TEM selected area diffraction patterns (SADPs) of single crystals. The software uses iterative cross correlations to locate the forward scattered beam position and to find the coordinates of the diffraction spots. The newly developed algorithm is suitable for fully automated analysis and it works well with asymmetric diffraction patterns, off-zone axis patterns, patterns with streaks, and noisy patterns such as Fast Fourier transforms of high-resolution images. The AutoSADP tool runs as a macro for the Digital Micrograph program and can determine d-spacing values and interplanar angles based on the pixel ratio with an accuracy of better than about 2%.

Original languageEnglish
Pages (from-to)10-14
Number of pages5
JournalUltramicroscopy
Volume112
Issue number1
DOIs
Publication statusPublished - Jan 2012

Fingerprint

software development tools
Diffraction patterns
diffraction patterns
spacing
computer programs
Image resolution
Software packages
Fast Fourier transforms
cross correlation
Macros
Diffraction
Pixels
pixels
Single crystals
Transmission electron microscopy
transmission electron microscopy
high resolution
single crystals
diffraction

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Instrumentation

Cite this

A software tool for automatic analysis of selected area diffraction patterns within Digital Micrograph. / Wu, C. H.; Reynolds, W. T.; Murayama, M.

In: Ultramicroscopy, Vol. 112, No. 1, 01.2012, p. 10-14.

Research output: Contribution to journalArticle

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