Title :
Dependence of the POR and NBOHC defects as function of the dose in hydrogen-treated and untreated KU1 glass fibers
Author :
Brichard, Benoit ; Fernandez, Alberto Fernandez ; Ooms, Hans ; Borgermans, P. ; Berghmans, F.
Author_Institution :
Belgian Nucl. Res. Centre, Mol, Belgium
Abstract :
We evaluated the performances of the hydrogen-loading technique to reduce the radiation-induced absorption in optical fibers in the visible part of the spectrum. A reduction factor as large as one order of magnitude can be obtained in high dose-rate regime. Based on a spectral deconvolution method, we showed that hydrogen preferentially interacts with NBOHC defects while the number of POR defects is not affected.
Keywords :
absorption coefficients; glass fibres; radiation effects; radiation hardening; visible spectra; NBOHC defects; POR; high dose-rate regime; hydrogen-treated KU1 glass fibers; nonbridging oxygen hole center; optical fibers; peroxy-radical; radiation-induced absorption; reduction factor; spectral deconvolution method; untreated KU1 glass fibers; Deconvolution; Electromagnetic wave absorption; Glass; Hydrogen; Optical fiber devices; Optical fiber testing; Optical fibers; Preforms; Radiation hardening; Silicon compounds;
Journal_Title :
Nuclear Science, IEEE Transactions on
DOI :
10.1109/TNS.2003.822097
