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https://hdl.handle.net/20.500.14279/4241| Title: | Highly sensitive type IA fiber Bragg gratings as sensors in radiation environments | Authors: | Kalli, Kyriacos Faustov, A. V. Saffari, Pouneh Gusarov, Andreï I. Wuilpart, Marc Megret, Patrice Zhang, Lin Koutsides, Charalambos |
metadata.dc.contributor.other: | Καλλή, Κυριάκος Κουτσίδης, Χαράλαμπος |
Major Field of Science: | Engineering and Technology | Field Category: | Electrical Engineering - Electronic Engineering - Information Engineering | Keywords: | Bragg peaks;Fiber gratings;Gamma irradiation;Performance characteristics;Photosensitive fibers;Radiation environments;Radiation exposure;Wavelength shift;Dosimetry;Fibers;Ionizing radiation;Fiber bragg gratings | Issue Date: | 15-Oct-2012 | Source: | (2012) Proceedings of SPIE - The International Society for Optical Engineering, 8421, art. no. 842153; 22nd International Conference on Optical Fiber Sensors, 2012, Beijing, China | Conference: | International Conference on Optical Fiber Sensors | Abstract: | Type IA fiber gratings have unusual physical properties compared with other grating types. We compare with performance characteristics of Type IA and Type I Bragg gratings exposed to the effects of Co60 gamma-irradiation. A Bragg peak shift of 190 pm was observed for Type IA gratings written in Fibercore PS-1250/1500 photosensitive fiber at a radiation dose of 116 kGy. This is the largest wavelength shift recorded to date under radiation exposure. The Type IA and Type I gratings show different kinetics under radiation and during post-radiation annealing, this can be exploited for the design of a grating based dosimetry system. | ISBN: | 978-081949103-9 | ISSN: | 0277-786X | DOI: | 10.1117/12.975186 | Rights: | © 2012 SPIE | Type: | Conference Papers | Affiliation : | SCK-CEN Belgian Nuclear Research Center Aston University University of Mons Cyprus University of Technology |
| Appears in Collections: | Δημοσιεύσεις σε συνέδρια /Conference papers or poster or presentation |
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