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Proceedings Paper

Study of color centers in optical fibers to be used for ITER plasma diagnostics
Author(s): Dan G. Sporea; Adelina Sporea; Simonpietro Agnello; Laura Nuccio
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Paper Abstract

The paper presents a comparative study, by off-line measurements of the irradiation induced optical attenuation in several large diameter (600 μm) optical fibers subjected to gamma-rays and neutron irradiation. The optical fiber samples fall into two categories: optical fibers with an enhanced UV transmission (high OH content core) and solarization resistant optical fibers. The irradiation conditions were as follows: a) gamma irradiation at a 60Co source, with a dose rate of 0.33 kGy/h +/- 5%, up to the maximum total irradiation dose of 313 kGy; b) neutron irradiation (mean energy 5.2 MeV) using a deuteron beam (13 MeV) and a thick beryllium target, for a total fluence of 6x1012 n.cm-2. Electron paramagnetic resonance measurements have been carried out to further investigate the radiation sensitivity of the considered fibers and to identify irradiation induced paramagnetic point defects.

Paper Details

Date Published: 1 August 2007
PDF: 6 pages
Proc. SPIE 6785, ROMOPTO 2006: Eighth Conference on Optics, 67851T (1 August 2007); doi: 10.1117/12.756745
Show Author Affiliations
Dan G. Sporea, National Institute for Lasers, Plasma and Radiation Physics (Romania)
Adelina Sporea, National Institute for Lasers, Plasma and Radiation Physics (Romania)
Simonpietro Agnello, Univ. of Palermo (Italy)
Laura Nuccio, Univ. of Palermo (Italy)


Published in SPIE Proceedings Vol. 6785:
ROMOPTO 2006: Eighth Conference on Optics

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