ABSTRACT
The study of the kinetics of photochromic glass coloration, fading, and bleaching is an important problem to be solved in connection with their use under various conditions of stationary and pulse irradiation. Numerous kinetic experiments performed on different types of photochromic glasses exhibited vast and sometimes difficult to interpret information on the peculiarities of their behavior during exposure. Notwithstanding the diversity of experimental material, general analysis of the kinetic phenomena and an attempt at systematization are possible. This is why a significant number of papers are devoted to the problems of kinetic simulation. The immense volume of experimental data should be taken into consideration when developing a simulation approach to describe the kinetics of photoinduced processes in glasses. Another peculiarity of the kinetics is the growth of the initial relaxation rate as irradiation time increases.
