Eine Methode zur Bestimmung von Massenschwächungskoeffizienten für die röntgenographische Phasenanalyse

A method for determination of mass attenuation coefficients in diffractometric phase analysis A method for the direct determination of mass attenuation coefficients was tested. The attenuation of intensity of an X-ray beam diffracted from a crystalline sample support by covering the sample holder with the substance under investigation is used for the calculation. The effect of diffraction angle θ on the length of beam path in the sample was taken into account. The data obtained for kaolinite, quartz, boehmite, magnesite and calcite closely correspond with the results of methods using either more specialised equipment or direct calculation from the chemical composition. Several aspects concerning the application of the method for quantitative phase analysis are discussed. The suitability of the method for phase analysis of clays usually exhibiting low mass attenuation is emphasized.