Anomalous X-Ray Diffraction Intensities


The accompanying photographs (Fig. 1) show an interesting example of a case where the relative intensities of the lines in any X-ray spectrum may vary without a corresponding change in atomic arrangement. They are Debye photographs of chromium plated wires obtained under different conditions of electrodeposition. It is seen at once that the intensity of the middle line, the (200) reflection, in comparison with that of the other two lines, the (110) and (211), is as strong as normally it should be in the top photograph. In the second photograph it has become relatively weak. In the bottom photograph it has disappeared entirely.

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WOOD, W. Anomalous X-Ray Diffraction Intensities. Nature 127, 703 (1931).

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