caa a22 4500 467925828 CHVBK 20180406152929.0 cr unu---uuuuu 170328e20060601xx s 000 0 eng 10.1134/S0020168506060173 doi (NATIONALLICENCE)springer-10.1134/S0020168506060173 Irradiation-induced and postirradiation processes in fluoroaluminate glasses [Elektronische Daten] [T. Bocharova, G. Karapetyan, A. Mironov, N. Mishchenkov, N. Tagil'tseva] We have measured the EPR and induced optical absorption spectra of several fluoroaluminate glasses prepared under different redox conditions and containing NH4HF2, EuF3, or Eu2O3 additions. Analysis of spectra taken after gamma irradiation to various doses and isothermal bleaching kinetics of individual absorption bands indicates that the color centers responsible for induced absorption in the UV spectral region are hole traps related to either oxygen (45000 and 42000 cm−1) or fluorine (37500 cm−1). In the visible range, we have revealed three absorption bands. We assume that the 17400 cm−1 absorption is due to an electron trap involving Y3+. Our data suggest some evidence that paramagnetic hole centers and electronic color centers may be formed in the same events. Pleiades Publishing, Inc., 2006 Bocharova T. St. Petersburg State Polytechnical University, Politekhnicheskaya ul. 29, 195251, St. Petersburg, Russia aut Karapetyan G. St. Petersburg State Polytechnical University, Politekhnicheskaya ul. 29, 195251, St. Petersburg, Russia aut Mironov A. St. Petersburg State Polytechnical University, Politekhnicheskaya ul. 29, 195251, St. Petersburg, Russia aut Mishchenkov N. Institute of Chemistry, Far East Division, Russian Academy of Sciences, pr. Stoletiya Vladivostoka 159, 690022, Vladivostok, Russia aut Tagil'tseva N. St. Petersburg State Technological Institute (Technical University), Moskovskii pr. 26, 190013, St. Petersburg, Russia aut Inorganic Materials Nauka/Interperiodica 42/6(2006-06-01), 671-680 0020-1685 42:6<671 2006 42 10789 https://doi.org/10.1134/S0020168506060173 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1134/S0020168506060173 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Bocharova T. St. Petersburg State Polytechnical University, Politekhnicheskaya ul. 29, 195251, St. Petersburg, Russia aut NATIONALLICENCE 700 1- Karapetyan G. St. Petersburg State Polytechnical University, Politekhnicheskaya ul. 29, 195251, St. Petersburg, Russia aut NATIONALLICENCE 700 1- Mironov A. St. Petersburg State Polytechnical University, Politekhnicheskaya ul. 29, 195251, St. Petersburg, Russia aut NATIONALLICENCE 700 1- Mishchenkov N. Institute of Chemistry, Far East Division, Russian Academy of Sciences, pr. Stoletiya Vladivostoka 159, 690022, Vladivostok, Russia aut NATIONALLICENCE 700 1- Tagil'tseva N. St. Petersburg State Technological Institute (Technical University), Moskovskii pr. 26, 190013, St. Petersburg, Russia aut NATIONALLICENCE 773 0- Inorganic Materials Nauka/Interperiodica 42/6(2006-06-01), 671-680 0020-1685 42:6<671 2006 42 10789 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer