Title :
gamma -ray and neutron irradiation characteristics of pure silica core single mode fiber and its lifetime estimation
Author :
Chigusa, Y. ; Watanabe, M. ; Kyoto, M. ; Ooe, M. ; Matsubara, T. ; Okamoto, S. ; Yamamoto, T. ; Iida, T. ; Sumita, K.
Author_Institution :
Sumitomo Electr. Ind. Ltd., Yokohama, Japan
Abstract :
The investigation of the induced loss for a single-mode (SM) optical fiber under gamma -ray irradiation and neutron irradiation is described. An estimation method for induced loss with loss dose rate and long-term gamma -ray irradiation is proposed. The induced loss of pure-silica-core SM fiber is estimated to be 50 times lower than that of germanium containing silica-core SM fiber after irradiation with 1 R/h for 25 years.<>
Keywords :
gamma-ray effects; neutron effects; optical fibres; optical losses; silicon compounds; 2.5 yrs; SiO/sub 2/; gamma -ray irradiation; induced loss; lifetime estimation; loss dose rate; neutron irradiation; pure silica core single-mode optical fibre; Germanium; Neutrons; Optical fiber dispersion; Optical fiber losses; Optical fibers; Power generation; Power system reliability; Refractive index; Samarium; Silicon compounds;
Journal_Title :
Nuclear Science, IEEE Transactions on
