Highly radiation sensitive type IA FBGs for dosimetry applications
Date Issued
September 23, 2011
DOI
10.1109/RADECS.2011.6131460
Abstract
We have studied Co 60 ionizing radiation 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.