Multifunctional Two- and Three-Dimensional Polycrystalline X-Ray Diffractometry

Indexed in: Chemical Abstracts, EBSCO.

A novel X-ray diffraction (XRD) theory is intensively revealed in this book. The theory will extend present XRD view from one dimension to two and three dimensions, enabling readers to see the ...
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Bragg’s Law and Multifunctional 2D X-Ray Diffractometry

Pp. 17-33 (17)

DOI: 10.2174/978160805076511101010017

Author(s): Cong Qiuzi, Yu Xiang, He Li



New concept of X-ray crystalline diffractometry is presented to interpret the functions of X-ray diffraction equipment, such as the Bragg-Brentano diffractometer, Seemann-Bohlin camera (or diffractometer), and Debye back-and transmission-cameras, etc. Bragg’s law, as the fundamental theory in X-ray analysis, is suitable to interpret all the phenomena of X-ray diffraction. However, relative orientations of crystal planes observed in respect to the sample surface, which is potentially of great interest from a purely scientific and from an applicative point of view, cannot be shown by the commercial equipment itself, the term “azimuth relationship” is therefore introduced here.

The concept of two-dimension (2D) diffraction in its many aspects is important in X-ray geometric optics. Now, both Bragg’s and azimuth-angle equations are used to outline the configuration and arrangements of the X-ray equipment as a quaternity figure shown in Fig. 1 at present describing features of the multifunctional 2D/3D X-ray diffractometry.