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Characterization of fabricated optical fiber for food irradiation dosimetry


Mohd Noor, Noramaliza and A. J., Maryam and S., Hassan and Wan Abdullah, Wan Saffiey and Tamchek, Nizam and M., Faizal and David, A. B. and Abdull Razis, Ahmad Faizal (2016) Characterization of fabricated optical fiber for food irradiation dosimetry. International Food Research Journal, 23 (5). pp. 2125-2129. ISSN 1985-4668; ESSN: 2231-7546


Food irradiation is a process carried out in order to improve hygienic quality and germination control, retarding sprouting, also enhancing physical attributes of the food product. In order to provide for food safety, radiation dosimetry in irradiated foods is required. In present studies use is made of germanium doped (Ge-doped) optical fibres of various form and dimensions. The fibres are irradiated using a gamma source irradiator (Gamma Cell 220 Excel), with doses from 1 kGy up to 10 kGy. For the particular Ge-doped optical fibres, investigation has been made of linearity with dose, reproducibility, and fading, intercomparisons being made. The fibres all exhibit TL yields that are linear with dose from 1 kGy up to 10 kGy, exceeding the dose range of all commercial high dose dosimeters used in the food irradiation industry. In respect of the flat fibre dosimeters, the mean reproducibility was found to be within 0.53% to 4.96%, also offering low signal loss (fading), within 13.41% (for fibres of cross-sectional dimensions 60 x 180 μm) to 20.12% (for fibres of cross-sectional dimensions 200 x 750μm), after 22 days of storage.

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Additional Metadata

Item Type: Article
Divisions: Faculty of Food Science and Technology
Faculty of Medicine and Health Science
Faculty of Science
Institute of Bioscience
Publisher: Faculty of Food Science and Technology, Universiti Putra Malaysia
Keywords: Dosimetry; Food irradiation; High dose; Optical fibres
Depositing User: Nabilah Mustapa
Date Deposited: 28 Feb 2017 10:32
Last Modified: 28 Feb 2017 10:32
URI: http://psasir.upm.edu.my/id/eprint/50443
Statistic Details: View Download Statistic

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