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Model for the dose, dose-rate and temperature dependence of radiation-induced loss in optical fibers

Abstract

We propose, and verify in the case of a Ge-doped-silica-core optical fiber, a general explanation for the power-law dependencies on dose frequently observed for the radiation-induced attenuation in optical fibers. This insight permits detailed prediction of the post-irradiation recovery curves, given just the empirical exponent of the power law, 0 < f < 1, and the experimental irradiation time, t{sub irrad}. The time constant of the recovery is given by t{sub irrad}/(1-f), in both first, and second-order kinetics. We establish a microscopic model of radiolytic oxygen molecules for the {gamma}-ray-induced absorption at 1.3 {mu}m in our test fibers and infer a diffusion limited bimolecular recombination process. (author). 19 refs., 6 figs.
Authors:
Griscom, D L; Gingerich, M E; Friebele, E J [1] 
  1. Optical Society of America, Washington, DC (United States)
Publication Date:
Dec 31, 1994
Product Type:
Conference
Report Number:
CONF-9309349-
Reference Number:
SCA: 360605; 440200; PA: AIX-27:007707; EDB-96:037741; SN: 96001535263
Resource Relation:
Conference: Symposium on radiations and their effects on components and systems, Saint-Malo (France), 13 Sep 1993; Other Information: PBD: 1994; Related Information: Is Part Of Radiation and its effects on components and systems; PB: 596 p.
Subject:
36 MATERIALS SCIENCE; 44 INSTRUMENTATION, INCLUDING NUCLEAR AND PARTICLE DETECTORS; OPTICAL FIBERS; PHYSICAL RADIATION EFFECTS; ARRHENIUS EQUATION; COBALT 60; DEFECTS; DOSE RATES; ENERGY LOSSES; GAMMA RADIATION; GERMANIUM ADDITIONS; OXYGEN; POST-IRRADIATION EXAMINATION; RADIATION ATTENUATION TESTING; SILICON OXIDES; TEMPERATURE DEPENDENCE
OSTI ID:
181229
Research Organizations:
CEA Centre d`Etudes de Bruyeres-le-Chatel, 91 (France)
Country of Origin:
France
Language:
English
Other Identifying Numbers:
TRN: FR9502530007707
Submitting Site:
FRN
Size:
pp. 257-261
Announcement Date:
Jan 17, 2004

Citation Formats

Griscom, D L, Gingerich, M E, and Friebele, E J. Model for the dose, dose-rate and temperature dependence of radiation-induced loss in optical fibers. France: N. p., 1994. Web.
Griscom, D L, Gingerich, M E, &amp; Friebele, E J. Model for the dose, dose-rate and temperature dependence of radiation-induced loss in optical fibers. France.
Griscom, D L, Gingerich, M E, and Friebele, E J. 1994. "Model for the dose, dose-rate and temperature dependence of radiation-induced loss in optical fibers." France.
@misc{etde_181229,
title = {Model for the dose, dose-rate and temperature dependence of radiation-induced loss in optical fibers}
author = {Griscom, D L, Gingerich, M E, and Friebele, E J}
abstractNote = {We propose, and verify in the case of a Ge-doped-silica-core optical fiber, a general explanation for the power-law dependencies on dose frequently observed for the radiation-induced attenuation in optical fibers. This insight permits detailed prediction of the post-irradiation recovery curves, given just the empirical exponent of the power law, 0 < f < 1, and the experimental irradiation time, t{sub irrad}. The time constant of the recovery is given by t{sub irrad}/(1-f), in both first, and second-order kinetics. We establish a microscopic model of radiolytic oxygen molecules for the {gamma}-ray-induced absorption at 1.3 {mu}m in our test fibers and infer a diffusion limited bimolecular recombination process. (author). 19 refs., 6 figs.}
place = {France}
year = {1994}
month = {Dec}
}