Table of Contents
Textures and Microstructures
Volume 14 (1991)–18
http://dx.doi.org/10.1155/TSM.14-18.567

Absorption Corrections for X-Ray Texture Measurement of Any Shape Sample

Laboratoire de Metallurgie Physique & Chimique, Metz University, France

Copyright © 1991 Hindawi Publishing Corporation. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

A pole figure needs generally more than 2000 points of measurement, each point corresponding to a specific location of the sample in space. For each position, the detected intensity will depend on:

-the irradiated volume,

-the volumic fraction of cristallites in Bragg position in this volume, this one depending in its turn on the cristallographic texture,

-the absorption of X-Rays by the material (1).

For flat and thick samples with an homogeneous texture, corrections are not required, because there is an exact balance between the increase of intensity due to the diffracting volume and the decrease of intensity due to the absorption (2). The corrections are necessary for an any shape sample.

In a first part, we present the absorption correction for X-ray texture measurement of any shape sample. In a second part, the intensities corrections are applied to a set of wires. the presented experiments demonstrate that the intensity corrections should be used to determine the texture of wires accuratly.