Abstract
The temperature dependence of light-scattering by single crystals of sodium chloride and potassium chloride is investigated in the temperature region between 168°K and 350°K. In contrast to the predictions of earlier theories pronounced maxima and minima of the scattering intensity are observed. It is shown that the general scattering theory recently developed by the authors (Theimer and Plint, 6) explains the experiments quantitatively if the scattering regions are interpreted as vacancy and impurity clouds surrounding charged dislocations (Eshelby, et al. 7). No other plausible scattering mechanism appears to be compatible with the experiments.
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