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

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

Fisica e Chimica - Emilio Segrè

Risultato della ricerca: Article › peer review

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 originale	English
pagine (da-a)	2121-2125
Numero di pagine	5
Rivista	IEEE Transactions on Nuclear Science
Volume	55
Stato di pubblicazione	Published - 2008

All Science Journal Classification (ASJC) codes

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

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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.",

author = "Simonpietro Agnello and Laurent Dusseau and Benoit Brichard and Laura Nuccio",

year = "2008",

language = "English",

volume = "55",

pages = "2121--2125",

journal = "IEEE Transactions on Nuclear Science",

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T1 - Comparison Between Point Defect Generation by gamma-rays in Bulk and Fibre Samples of High Purity Amorphous SiO2”

AU - Agnello, Simonpietro

AU - Dusseau, Laurent

AU - Brichard, Benoit

AU - Nuccio, Laura

PY - 2008

Y1 - 2008

N2 - 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.

AB - 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.

UR - http://hdl.handle.net/10447/36257

M3 - Article

VL - 55

SP - 2121

EP - 2125

JO - IEEE Transactions on Nuclear Science

JF - IEEE Transactions on Nuclear Science

SN - 0018-9499

ER -