Nuclear Engineering and Technology

Korean Nuclear Society (한국원자력학회)
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FTIR study of gamma and electron irradiated high-density polyethylene for high dose measurements

  • Al-Ghamdi, Hanan (Physics Department, College of Science, Princess Nourah Bint Abdulrahman University) ;
  • Farah, Khaled (Universite de Sousse, Institut Superieur Du Transport et de La Logistique de Sousse) ;
  • Almuqrin, Aljawharah (Physics Department, College of Science, Princess Nourah Bint Abdulrahman University) ;
  • Hosni, Faouzi (Department of Physics, College of Science, University of Bisha)
  • Received : 2020.10.18
  • Accepted : 2021.07.16
  • Published : 2022.01.25
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Abstract

A reliable and well-characterized dosimetry system which is traceable to the international measurement system, is the key element to quality assurance in radiation processing with cobalt-60 gamma rays, X-rays, and electron beam. This is specifically the case for health-regulated processes, such as the radiation sterilization of single use medical devices and food irradiation for preservation and disinfestation. Polyethylene is considered to possess a lot of interesting dosimetric characteristics. In this work, a detailed study has been performed to determine the dosimetric characteristics of a commercialized high-density polyethylene (HDPE) film using Fourier transformed infrared spectrometry (FTIR). Correlations have been established between the absorbed dose and radiation induced infrared absorption in polyethylene having a maximum at 965 cm-1 (transvinylene band) and 1716 cm-1 (ketone-carbonyl band). We have found that polyethylene dose-response is linear with dose for both bands up to1000 kGy. For transvinylene band, the dose-response is more sensitive if irradiations are made in helium. While, for ketone-carbonyl band, the dose-response is more sensitive when irradiations are carried out in air. The dose-rate effect has been found to be negligible when polyethylene samples are irradiated with electron beam high dose rates. The irradiated polyethylene is relatively stable for several weeks after irradiation.

Keywords

Acknowledgement

The Deanship of Scientific Research at Princess Nourah bint Abdulrahman University through the Fast-track Research Funding Program funded this research.

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