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|Title:||Highly sensitive type IA fiber Bragg gratings as sensors in radiation environments||Authors:||Kalli, Kyriacos
Faustov, A. V.
Gusarov, Andreï I.
|Keywords:||Bragg peaks;Fiber gratings;Gamma irradiation;Performance characteristics;Photosensitive fibers;Radiation environments;Radiation exposure;Wavelength shift;Dosimetry;Fibers;Ionizing radiation;Fiber bragg gratings||Category:||Electrical Engineering - Electronic Engineering - Information Engineering||Field:||Engineering and Technology||Issue Date:||15-Oct-2012||Publisher:||SPIE||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||Journal:||Proceedings of SPIE - The International Society for Optical Engineering||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|
|Appears in Collections:||Δημοσιεύσεις σε συνέδρια/Conference papers|
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