Nuclear Technology and Radiation Protection (Jan 2013)

Measurement of 60CO gamma radiation induced attenuation in multimode step-index POF at 530 nm

  • Kovačević Milan S.,
  • Đorđević Aleksandar,
  • Savović Svetislav,
  • Bajić Jovan S.,
  • Stupar Dragan Z.,
  • Slankamenac Miloš P.,
  • Kovačević Milojko

DOI
https://doi.org/10.2298/NTRP1302158K
Journal volume & issue
Vol. 28, no. 2
pp. 158 – 162

Abstract

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As optical fibres are used ever more extensively in space applications, nuclear industry, medicine and high-energy physics experiments, it has become essential to investigate the influence of ionizing radiation on their characteristics. In this work, the radiation-induced attenuation at 530 nm is investigated experimentally in step-index multimode polymethyl-methacrylate plastic optical fibres exposed to low dose-rate gamma radiation. Cumulative doses ranged from 50 Gy to 500 Gy. The radiation induced attenuation has been empirically found to obey the power law RIA= aDb, where D is the total radiation dose and a and b are the constants determined by fitting.

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