Anisotropy visualisation from X-ray diffraction of biological apatite in mixed phase calcified tissue samples.

ABSTRACT: X-ray diffraction is widely used to characterise the mineral component of calcified tissue. Broadening of the diffraction peaks yields valuable information on the size of coherently diffracting domains, sometimes loosely described as crystallite size or crystallinity. These domains are markedly anisotropic, hence a single number describing their size is misleading. We present a novel variation on a method for visualising crystallographic anisotropy in X-ray diffraction data. This provides an intuitively interpretable depiction of crystalline domain size and anisotropy. The new method involves creating a polar plot of calculated domain thickness for peaks in a diffractogram versus crystallographic direction. Points with the least error are emphasised. Anisotropic domain dimensions are calcu

SUBMITTER: Scott R 

PROVIDER: S-EPMC11828961 | biostudies-literature | 2025 Feb

REPOSITORIES: biostudies-literature