Change in Density of Potassium Chloride Crystals upon Irradiation with X-Rays

Publisher Website
Google Scholar
Abstract
Alkali halide crystals become colored when irradiated with x-rays. Theoretical considerations indicate that the coloration is due to absorption centers which consist of electrons trapped at negative ion vacancies. Precision measurements of the density of uncolored crystals, however, indicate that it is very unlikely that there is a sufficient number of vacancies present in well annealed crystals to account for the number of color centers, which may be determined optically, unless vacancies are formed as a result of the irradiation.