caa a22 4500 467923205 CHVBK 20180406152922.0 cr unu---uuuuu 170328e20060501xx s 000 0 eng 10.1134/S1087659606030047 doi (NATIONALLICENCE)springer-10.1134/S1087659606030047 Borgman V. aut Kinetics of photoinduced recombination of hole-type color centers in silicate glasses [Elektronische Daten] [V. Borgman] The photobleaching of the absorption band associated with the hole-type centers in a gamma-irradiated glass of the K2O-PbO-SiO2 system is investigated by photometry. The results obtained are compared with the data available in the literature for glasses in the Na2O-CaO-SiO2 system. As the exposure time increases, the optical density at the maximum of the absorption band attributed to the hole-type centers decreases according to an exponential law with a fractional exponent, which depends on the composition of the glass matrix and on the experimental conditions. This dependence is characteristic of so-called retarded bimolecular reactions. The inference is made that the retardation of the photoreaction is caused by the effect of the energy of absorbed photons on the local environment of the centers. Pleiades Publishing, Inc., 2006 Glass Physics and Chemistry Nauka/Interperiodica 32/3(2006-05-01), 280-286 1087-6596 32:3<280 2006 32 10720 https://doi.org/10.1134/S1087659606030047 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1134/S1087659606030047 text/html Onlinezugriff via DOI NATIONALLICENCE 100 1- Borgman V. aut NATIONALLICENCE 773 0- Glass Physics and Chemistry Nauka/Interperiodica 32/3(2006-05-01), 280-286 1087-6596 32:3<280 2006 32 10720 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer