Comparison Between Point Defect Generation by gamma-rays in Bulk and Fibre Samples of High Purity Amorphous SiO2”

Simonpietro Agnello, Laurent Dusseau, Benoit Brichard, Laura Nuccio

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2 Citazioni (Scopus)

Abstract

We compare the E', H(I) and Si-ODC(II) contents in a low-OH high-purity a-SiO2 both in bulk and fibre forms. The investigation includes the effects of hydrogen loading of the fibre. We found that the H(I) centre appears during irradiation and that its concentration tends to increase with the dose in fibers impregnated with molecular hydrogen. For the hydrogen-treated fibers, no experimental repeatability could be found in the measurements of E' and Si-ODC(II) although an acceptable agreement was still found in non-hydrogenated samples. This result suggests a possible complex reaction mechanisms under gamma radiation when the glass has a hydrogen excess.
Lingua originaleEnglish
pagine (da-a)2121-2125
Numero di pagine5
RivistaIEEE Transactions on Nuclear Science
Volume55
Stato di pubblicazionePublished - 2008

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All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics
  • Nuclear Energy and Engineering
  • Electrical and Electronic Engineering

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