Study of color centers in optical fibers to be used for ITER plasma diagnostics

Dan G. Sporea; Adelina Sporea; Simonpietro Agnello; Laura Nuccio

doi:10.1117/12.756745

1 August 2007 Study of color centers in optical fibers to be used for ITER plasma diagnostics

Dan G. Sporea, Adelina Sporea, Simonpietro Agnello, Laura Nuccio

Proceedings Volume 6785, ROMOPTO 2006: Eighth Conference on Optics; 67851T (2007) https://doi.org/10.1117/12.756745
Event: ROMOPTO 2006: Eighth Conference on Optics, 2006, Sibiu, Romania

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.

Citation Download Citation

Dan G. Sporea, Adelina Sporea, Simonpietro Agnello, and Laura Nuccio "Study of color centers in optical fibers to be used for ITER plasma diagnostics", Proc. SPIE 6785, ROMOPTO 2006: Eighth Conference on Optics, 67851T (1 August 2007); https://doi.org/10.1117/12.756745

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