DocumentCode :
1558426
Title :
Influence of the Fiber Coating Type on the Strain Response of Proton-Irradiated Fiber Bragg Gratings
Author :
Currás, E. ; Virto, A.L. ; Moya, D. ; Vila, I. ; Carrión, J.G. ; Frövel, M. ; García-López, J. ; Jiménez, M.C. ; Morilla, Y. ; Palomo, F.R.
Author_Institution :
Instituto de F¿¿sica de Cantabria (CSIC-UC), Santander, Spain
Volume :
59
Issue :
4
fYear :
2012
Firstpage :
937
Lastpage :
942
Abstract :
We report on the effect of the fiber coating on the radiation sensitivity of Fiber Bragg Gratings (FBG). For the first time this type of study has been carried out using a 13.5 MeV proton beam up to a fluence of 3.3 \\times 10^{15} protons/cm ^{2} (total absorbed dose of 15 MGy). We observed a clear dependence of the radiation sensitivity on the coating, in particular, we have investigated the irradiation induced changes on the strain sensitivity; FBG strain coefficient remains stable for all the fiber within a 5%. This result demonstrates the suitability of FBGs as structural health and deformation monitors in the very hostile environment of the new generation of high-intensity particle physics proton colliders.
Keywords :
Coatings; Fiber gratings; Protons; Radiation effects; Strain; Temperature sensors; Draw tower gratings; fiber Bragg gratings; proton radiation effects; type II gratings;
fLanguage :
English
Journal_Title :
Nuclear Science, IEEE Transactions on
Publisher :
ieee
ISSN :
0018-9499
Type :
jour
DOI :
10.1109/TNS.2012.2206049
Filename :
6243249
Link To Document :
بازگشت