Measurements of growth and decay of radiation induced attenuation during the irradiation and recovery of plastic optical fibres
AuthorsKovačević, Milan S.
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In this work, we present the experimental study of the radiation-induced attenuation in step-index polymethyl-methacrylate based plastic optical fibre by exposure to low dose rate ionizing radiation. The low dose exposure has been found to induce significant permanent attenuation in plastic optical fibres. Based on the experimental results, the formula between radiation-induced attenuation and radiation dose is obtained accordingly. The recovery properties of plastic optical fibre also were investigated. The fibre begins to recover immediately after irradiation, but it does not fully recover, i.e. the irradiation leads to permanent damage of polymer. (C) 2012 Elsevier Ltd. All rights reserved.
Keywords:Plastic optical fibres / Gamma radiation / Radiation induced attenuation
Source:Optics and Laser Technology, 2013, 47, 148-151
- Photonics components and systems (RS-171011)
- Experimental and theoretical investigation in Radiation physics and radioecology (RS-171021)
- Strategic Research Grant of City University of Hong Kong [CityU 7002775]