Radiation hardening of silica glass through fictive temperature reduction

Matthieu Lancry, B. Hari Babu, Nadège Ollier, Bertrand Poumellec

Research output: Contribution to journalArticlepeer-review

Abstract

The aim of this article was to report the effects of γ-radiation on type-I Infrasil silica glass with different fictive temperatures, Tf, for harsh environment applications. Radiation-induced attenuation in the visible range is found to be much lower in low fictive temperature samples. Photoluminescence experiments show that glasses with higher fictive temperatures have a higher nonbridging oxygen hole centers defect concentration generated by irradiation. In addition, electron paramagnetic resonance studies reveal higher E’ point defects, AlOHC, and hydrogen(II) defects in high Tf samples. In general, we find that the γ-radiation “hardness” of Infrasil301 silica glass becomes significantly higher with decreasing fictive temperature.

Original languageEnglish
Pages (from-to)285-290
Number of pages6
JournalInternational Journal of Applied Glass Science
Volume8
Issue number3
DOIs
Publication statusPublished - 1 Sept 2017
Externally publishedYes

Keywords

  • defects
  • fiber materials
  • fictive temperature
  • radiation resistance
  • silica

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