Influence of neutron and gamma-ray irradiations on rad-hard optical fiber

被引：44

作者：

Morana, A. ^{[1
]}

Girard, S. ^{[1
]}

Cannas, M. ^{[2
]}

Marin, E. ^{[1
]}

Marcandella, C. ^{[3
]}

Paillet, P. ^{[3
]}

Perisse, J. ^{[4
]}

Mace, J. -R. ^{[5
]}

Boscaino, R. ^{[2
]}

Nacir, B. ^{[6
]}

Boukenter, A. ^{[1
]}

Ouerdane, Y. ^{[1
]}

机构：

[1] Univ St Etienne, UMR CNRS 5516, Lab H Curien, F-42000 St Etienne, France

[2] Univ Palermo, Dipartimento Fis & Chim, I-90123 Palermo, Italy

[3] CEA, DAM, DIF, F-91297 Arpajon, France

[4] Areva NP, F-69456 Lyon 06, France

[5] Areva, Tour Areva, F-92084 Paris, France

[6] Ctr Natl Energie Sci & Tech Nucl, Maamoura, Morocco

来源：

OPTICAL MATERIALS EXPRESS | 2015年 / 5卷 / 04期

关键词：

HIGH-PURITY; DEFECT CENTERS; INTRINSIC-DEFECT; AMORPHOUS SIO2; HOLE-CENTERS; SILICA; ABSORPTION; GENERATION; GLASS;

D O I：

10.1364/OME.5.000898

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We investigated point defects induced in rad-hard Fluorine-doped optical fibers using both a mixed source of neutrons (fluences from 1015 to 1017 n/cm(2)) and gamma-rays (doses from 0.02 to 2 MGy) and by a gamma-ray source (dose up to 10 MGy). By combining several complementary spectroscopic techniques such as radiation-induced attenuation, confocal micro-luminescence, time-resolved photo-luminescence and electron paramagnetic resonance, we evidenced intrinsic and hydrogen-related defects. The comparison between the two irradiation sources highlights close similarities among the spectroscopic properties of the induced defects and the linear correlation of their concentration up to 1016 n/cm(2). These results are interpreted on the basis of the generation processes of defects from precursors sites, that are common to both gamma-rays and neutrons. In contrast, the highest neutron fluence (1017 n/cm(2)) causes peculiar effects, such as the growth of a photoluminescence and variations of the spectral and decay properties of the emission related with nonbridging oxygen hole centers, that are likely due to silica network modification. (C) 2015 Optical Society of America

引用

页码：898 / 911

页数：14

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