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A Computerized Technique of Plotting a Complete Pole Figure by an X-Ray Reflection Method

Published online by Cambridge University Press:  06 March 2019

J. J. Klappholz
Affiliation:
Picatinny Arsenal Dover, New Jersey 07801
S. Waxman
Affiliation:
Picatinny Arsenal Dover, New Jersey 07801
C. Feng
Affiliation:
Picatinny Arsenal Dover, New Jersey 07801
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Abstract

The technique of plotting a complete pole figure composed of data points in both longitude and latitude from 0 to 180 degrees by a computer program is described. X-ray data were obtained by a reflection method from a specimen cut into three sections mutually perpendicular to one another. The computer program calculates each position in the pole figure based on the time rate of change of the tilt angle ϕ and the spin angle α which are transformed into rectangular coordinates.

The advantage of the present technique is to minimize the x-ray intensity loss due to geometric defocusing, since each section of a given specimen is required to tilt not more than 55 degrees. Due to the fact that a complete pole figure is plotted, one is allowed to examine the symmetry or lack of symmetry in a given specimen with respect to a set of references axes.

Type
Research Article
Copyright
Copyright © International Centre for Diffraction Data 1971

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