Comparison Between Point Defect Generation by gamma-rays in Bulk and Fibre Samples of high purity amorphous SiO2

Benoît Brichard; S Agnello; L Nuccio; L Dusseau; Marco Van Uffelen

doi:10.1109/TNS.2008.2001706

Comparison Between Point Defect Generation by gamma-rays in Bulk and Fibre Samples of high purity amorphous SiO2

Benoît Brichard, S Agnello, L Nuccio, L Dusseau, Marco Van Uffelen

Research output › peer-review

Abstract

We compare the , 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 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.

Original language	English
Pages (from-to)	2121-2125
Journal	IEEE transactions on nuclear Science
Volume	55
Issue number	4
DOIs	https://doi.org/10.1109/TNS.2008.2001706
State	Published - Dec 2008

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Cite this

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title = "Comparison Between Point Defect Generation by gamma-rays in Bulk and Fibre Samples of high purity amorphous SiO2",

abstract = "We compare the , 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 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.",

keywords = "glass, fiber, radiation effects, gamma",

author = "Beno{\^i}t Brichard and S Agnello and L Nuccio and L Dusseau and {Van Uffelen}, Marco",

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T1 - Comparison Between Point Defect Generation by gamma-rays in Bulk and Fibre Samples of high purity amorphous SiO2

AU - Brichard, Benoît

AU - Agnello, S

AU - Nuccio, L

AU - Dusseau, L

A2 - Van Uffelen, Marco

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N2 - We compare the , 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 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 , 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 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.

KW - glass

KW - fiber

KW - radiation effects

KW - gamma

UR - http://ecm.sckcen.be/OTCS/llisapi.dll/open/ezp_103497

UR - http://knowledgecentre.sckcen.be/so2/bibref/6703

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DO - 10.1109/TNS.2008.2001706

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JO - IEEE transactions on nuclear Science

JF - IEEE transactions on nuclear Science

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