Experimental evidence for two different precursors of E’γ centers in silica

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Abstract

Electron paramagnetic resonance measurements of concentration and line shape of centers induced by γ ray irradiation are presented for natural and synthetic commercial silica with different OH contents. Synthetic materials with OH content >200 ppm by weight show one line shape for all investigated doses. In contrast, the other materials show a different line shape at low irradiation doses. Differences are also observed in the concentration growth of the centers in synthetic wet materials and in the other materials. The results are interpreted as evidence of two centers distinguishable by their line shape and having different precursors.
Lingua originaleEnglish
pagine (da-a)505-508
Numero di pagine4
RivistaJournal of Non-Crystalline Solids
Volume345 & 346
Stato di pubblicazionePublished - 2004

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Silicon Dioxide
line shape
Silica
silicon dioxide
Irradiation
dosage
irradiation
Dosimetry
Paramagnetic resonance
rays
electron paramagnetic resonance

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Ceramics and Composites
  • Condensed Matter Physics
  • Materials Chemistry

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title = "Experimental evidence for two different precursors of E’γ centers in silica",
abstract = "Electron paramagnetic resonance measurements of concentration and line shape of centers induced by γ ray irradiation are presented for natural and synthetic commercial silica with different OH contents. Synthetic materials with OH content >200 ppm by weight show one line shape for all investigated doses. In contrast, the other materials show a different line shape at low irradiation doses. Differences are also observed in the concentration growth of the centers in synthetic wet materials and in the other materials. The results are interpreted as evidence of two centers distinguishable by their line shape and having different precursors.",
author = "Simonpietro Agnello and Roberto Boscaino and Gianpiero Buscarino and Gelardi, {Franco Mario}",
year = "2004",
language = "English",
volume = "345 & 346",
pages = "505--508",
journal = "Journal of Non-Crystalline Solids",
issn = "0022-3093",
publisher = "Elsevier",

}

TY - JOUR

T1 - Experimental evidence for two different precursors of E’γ centers in silica

AU - Agnello, Simonpietro

AU - Boscaino, Roberto

AU - Buscarino, Gianpiero

AU - Gelardi, Franco Mario

PY - 2004

Y1 - 2004

N2 - Electron paramagnetic resonance measurements of concentration and line shape of centers induced by γ ray irradiation are presented for natural and synthetic commercial silica with different OH contents. Synthetic materials with OH content >200 ppm by weight show one line shape for all investigated doses. In contrast, the other materials show a different line shape at low irradiation doses. Differences are also observed in the concentration growth of the centers in synthetic wet materials and in the other materials. The results are interpreted as evidence of two centers distinguishable by their line shape and having different precursors.

AB - Electron paramagnetic resonance measurements of concentration and line shape of centers induced by γ ray irradiation are presented for natural and synthetic commercial silica with different OH contents. Synthetic materials with OH content >200 ppm by weight show one line shape for all investigated doses. In contrast, the other materials show a different line shape at low irradiation doses. Differences are also observed in the concentration growth of the centers in synthetic wet materials and in the other materials. The results are interpreted as evidence of two centers distinguishable by their line shape and having different precursors.

UR - http://hdl.handle.net/10447/27114

UR - https://www.sciencedirect.com/science/article/pii/S0022309304006428

M3 - Article

VL - 345 & 346

SP - 505

EP - 508

JO - Journal of Non-Crystalline Solids

JF - Journal of Non-Crystalline Solids

SN - 0022-3093

ER -