共 16 条
Radiation hardness of Ce-doped sol-gel silica fibers for high energy physics applications
被引:22
作者:
Cova, Francesca
[1
]
Moretti, Federico
[1
,6
]
Fasoli, Mauro
[1
]
Chiodini, Norberto
[1
]
Pauwels, Kristof
[2
]
Auffray, Etiennette
[3
]
Lucchini, Marco Toliman
[3
]
Baccaro, Stefania
[4
]
Cemmi, Alessia
[4
]
Bartova, Hana
[5
]
Vedda, Anna
[1
]
机构:
[1] Univ Milano Bicocca, Dept Mat Sci, Via Cozzi 55, I-20125 Milan, Italy
[2] Univ Milano Bicocca, Dept Phys, Piazza Sci 3, I-20125 Milan, Italy
[3] CERN, Route Meyrin, CH-1211 Geneva 23, Switzerland
[4] ENEA, FSN, Via Anguillarese 301, I-00123 Rome, Italy
[5] Czech Tech Univ, Fac Nucl Sci & Phys Engn, Brehova 7, Prague 1, Czech Republic
[6] Lawrence Berkeley Natl Lab, Mat Sci Div, 1 Cyclotron Rd Mailstop M-S 55R0121, Berkeley, CA 94720 USA
关键词:
GLASSES;
D O I:
10.1364/OL.43.000903
中图分类号:
O43 [光学];
学科分类号:
070207 ;
0803 ;
摘要:
The results of irradiation tests on Ce-doped sol-gel silica using x-and.-rays up to 10 kGy are reported in order to investigate the radiation hardness of this material for high-energy physics applications. Sol-gel silica fibers with Ce concentrations of 0.0125 and 0.05 mol. % are characterized by means of optical absorption and attenuation length measurements before and after irradiation. The two different techniques give comparable results, evidencing the formation of a main broad radiation-induced absorption band, peaking at about 2.2 eV, related to radiation-induced color centers. The results are compared with those obtained on bulk silica. This study reveals that an improvement of the radiation hardness of Ce-doped silica fibers can be achieved by reducing Ce content inside the fiber core, paving the way for further material development. (C) 2018 Optical Society of America
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页码:903 / 906
页数:4
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