Highly Radiation Sensitive Type IA FBGs for Future Dosimetry Applications
Journal
IEEE Transactions on Nuclear Science
Date Issued
July 10, 2012
DOI
10.1109/TNS.2012.2202247
Abstract
We have studied Co 60 gamma-irradiation effect on the characteristics of Type IA fiber Bragg gratings. A record Bragg peak shift of 190 pm was observed for a grating written in Fibercore PS-1250/1500 photosensitive fiber at a radiation dose of 116 kGy. Type IA and Type I gratings show different kinetics under radiation and during post-radiation annealing, which can be used for the design of a grating based dosimetry system.