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UNIVERSITY OF BUCHAREST
FACULTY OF PHYSICS Guest
2024-11-23 18:08 |
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Conference: Bucharest University Faculty of Physics 2017 Meeting
Section: Atomic and Molecular Physics. Astrophysics. Applications
Title:
INVESTIGATION OF OPTICAL FIBERS AS A RADIATION DOSIMETER
Authors:
Eugenia BĂDIȚĂ(1), Cătălin VANCEA(1,2), I. CALINA(1,2)
*
Affiliation:
1) National Institute for Laser, Plasma and Radiation Physics, 409 Atomistrilor str., Magurele, Ilfov,
2) University of Bucharest, Physics Faculty, 407 Atomistilorstr, Magurele, Ilfov
E-mail
eugenia_badita@yahoo.com, catalin.vancea@yahoo.com
Keywords:
optical fiber, radiation dosimeter, attenuation.
Abstract:
Electron beams produced by the ALID-7 linear accelerator were used to investigate optical fibers to determine their viability as a radiation dosimeter. The optical fibers that were used in the study have a pure silica core or are doped with different elements.This study is based on the physical degradation effect of the optical fiber due to electron beam exposure. This effect can be determined through the measurement of radiation induced attenuation that is proportional to the exposure dose. The measurements show a dependence of the radiation induced attenuation to the exposure dose. Radiation induced attenuation in the optic fiber was measured before, during and after electron beam exposure and for two wavelength values. Optical fibers present different responses, regarding attenuation values, when exposed to the same radiation doses, dependent on the core doping materials. While some optic fibers reached saturation of the attenuation values, others required a much larger irradiation dose or were not influenced at all.
References:
Acknowledgement:
This work has been financed by the National Authority for Research and
Innovation in the frame of Nucleus programme – contract PN 09 39/2014.
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