| Presentation | 2011-08-26 Unusual wavelength shift in reflected light from a FBG doubted as an influence of radioactivity from Fukushima Reactor Damages Kenta Shiraishi, Mai Karasawa, Ikumi Hirayama, Kisho Yamamoto, Ryuichi Mitsuhashi, Issei Sasaki, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | This report presents an unusual wavelength shit in the reflection from an optical fiber Bragg grating (FBG), which is radioactively exposed doubted as an influence of Fukushima power station accidents. Two FBG's with identical characteristics were prepared, one was left at the laboratory where far from the radioactive area and the other one was moved to a place near Fukushima prefecture. After that, the wavelength of reflection from the two FBG's were compared. Then we found not ignorable wavelength shift was found from radioactively exposed one, even no difference in the measurement conditions existed. According to continuous measurement of wavelength during few days, the wavelength shit seemed tend to recovery to the original position. These phenomena might cause of excess error or accident in the measurement or detection by using FBG and give us consequential wrong results. The authors would like to make alarming to the FBG users. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | FBG / FBG sensor / Radioactive contaminations |
| Paper # | OFT2011-30 |
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| Conference Information | |
| Committee | OFT |
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| Conference Date | 2011/8/18(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| Vice Chair | |
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| Paper Information | |
| Registration To | Optical Fiber Technology (OFT) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Unusual wavelength shift in reflected light from a FBG doubted as an influence of radioactivity from Fukushima Reactor Damages |
| Sub Title (in English) | |
| Keyword(1) | FBG |
| Keyword(2) | FBG sensor |
| Keyword(3) | Radioactive contaminations |
| 1st Author's Name | Kenta Shiraishi |
| 1st Author's Affiliation | Hokkaido Institute of Technology() |
| 2nd Author's Name | Mai Karasawa |
| 2nd Author's Affiliation | Hokkaido Institute of Technology |
| 3rd Author's Name | Ikumi Hirayama |
| 3rd Author's Affiliation | Hokkaido Institute of Technology |
| 4th Author's Name | Kisho Yamamoto |
| 4th Author's Affiliation | Hokkaido Institute of Technology |
| 5th Author's Name | Ryuichi Mitsuhashi |
| 5th Author's Affiliation | Hokkaido Institute of Technology |
| 6th Author's Name | Issei Sasaki |
| 6th Author's Affiliation | Hokkaido Institute of Technology:Photonic Sensing Consortium for Safety and Security |
| Date | 2011-08-26 |
| Paper # | OFT2011-30 |
| Volume (vol) | vol.111 |
| Number (no) | 182 |
| Page | pp.pp.- |
| #Pages | 4 |
| Date of Issue | |