The spatial distribution of defects produced in alkali halides by electron irradiation
- 1 February 1972
- journal article
- research article
- Published by Taylor & Francis in Philosophical Magazine
- Vol. 25 (2) , 381-395
- https://doi.org/10.1080/14786437208226812
Abstract
Irradiation of alkali halides “with 30 kv electrons produces coloration, sputtering and polygonization of the surface. Bleaching and annealing studies show that there are several types of F centre which give characteristic F bands. It suggested that movement of anion vacancies results in the development of polygonization lines. The results are interpreted in terms of a model where the different types of F centre are not uniformly distributed throughout the crystal and the first stage (fast colouring) centres are concentrated around the dislocations.Keywords
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