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Photoinduced recovery of gamma-irradiated fluoride glasses

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Abstract

Radiation-induced changes in the optical properties of fluoride glasses (FGs) were studied on samples of zirconium fluoride and aluminum fluoride based compositions gamma-irradiated to a total dose of 1.2 MGy. Upon exposure, the fundamental absorption edge smears and shifts toward longer wavelengths. The FGs studied exhibit self-recovery of the optical properties, whereby the radiation-induced absorption decreases in the course of storage without action of any external factors. Photostimulated recovery of the optical properties of the gamma-irradiated FGs was studied in the range of light wavelengths from 400 to 1200 nm at a light intensity of 1–3 mW/cm2. The maximum rate of recovery for both zirconium and aluminum fluoride based glasses was observed for the photoannealing at 600 nm.

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Authors and Affiliations

  1. All-Russia Research Institute of Chemical Technology, Russian Academy of Sciences, Moscow, Russia

    P. B. Baskov, V. V. Sakharov, V. A. Stepanov, P. A. Stepanov & P. V. Kurdyavko

  2. Leipunskii Institute of Physics and Power Engineering, State Scientific Center of the Russian Federation, Obninsk, Russia

    P. B. Baskov, V. V. Sakharov, V. A. Stepanov, P. A. Stepanov & P. V. Kurdyavko

Authors
  1. P. B. Baskov
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  2. V. V. Sakharov
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  3. V. A. Stepanov
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  4. P. A. Stepanov
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  5. P. V. Kurdyavko
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Translated from Pis’ma v Zhurnal Tekhnichesko\(\overset{\lower0.5em\hbox{$\smash{\scriptscriptstyle\smile}$}}{l} \) Fiziki, Vol. 28, No. 18, 2002, pp. 84–88.

Original Russian Text Copyright © 2002 by Baskov, Sakharov, V. Stepanov, P. Stepanov, Kurdyavko.

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Baskov, P.B., Sakharov, V.V., Stepanov, V.A. et al. Photoinduced recovery of gamma-irradiated fluoride glasses. Tech. Phys. Lett. 28, 790–791 (2002). https://doi.org/10.1134/1.1511787

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  • DOI: https://doi.org/10.1134/1.1511787

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