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Gamma Radiation Induced Modification on Optical Gap of Polycarbonate Detectors

Received: 3 September 2017     Accepted: 27 September 2017     Published: 30 October 2017
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Abstract

Exposure of polycarbonate detectors to high γ- ray doses causes a great effect on their structural. Samples of Makrofol DE 1-1 nuclear track detectors (NTDs) were irradiated with gamma doses in the range of 1-100 kGy using 1.25 MeV 60Co source of dose rate 4 kGy/h. The optical characterization of these detectors have been studied through the measurements of UV-visible absorption spectra of blank and γ- irradiated samples. The UV-visible spectra of γ- irradiated samples revealed color centers in the range (310-320 nm). Direct and indirect allowed optical band gap energies, refractive index (n), the number of carbon atoms per conjugated length (N), and the number of carbon atoms per cluster (M) for pristine and γ-irradiated samples were determined. Results revealed that optical band gaps decrease, while n, N, and M increase with increasing of γ-irradiated doses. This study sheds light on the basis of γ-interaction mechanisms with the polymeric detectors and use of Makrofol DE 1-1 in gamma dose determination.

Published in American Journal of Optics and Photonics (Volume 5, Issue 3)
DOI 10.11648/j.ajop.20170503.11
Page(s) 24-29
Creative Commons

This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited.

Copyright

Copyright © The Author(s), 2017. Published by Science Publishing Group

Keywords

Makrofol DE 1-1 SSNTDs, γ-irradiation, UV-visible Spectra, Optical Band Gap Energy

References
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[7] Yu, K., N., Nikezic, D., 2012. Appl. Radiat. Iso. 70, 1104.
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[9] Koesis, Z., S., Dwivedi, K., K., Brandt, R., 1997. Radiat. Meas. 28, (1-6), 177.
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[14] Singh, S., Prasher, S., 2004. The etching and structural studies of gamma irradiated induced effects in CR-39 plastic track recorder. Nucl. Instrum. Meth. B, 222, 518–24.
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    Yasser Saad Rammah. (2017). Gamma Radiation Induced Modification on Optical Gap of Polycarbonate Detectors. American Journal of Optics and Photonics, 5(3), 24-29. https://doi.org/10.11648/j.ajop.20170503.11

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    ACS Style

    Yasser Saad Rammah. Gamma Radiation Induced Modification on Optical Gap of Polycarbonate Detectors. Am. J. Opt. Photonics 2017, 5(3), 24-29. doi: 10.11648/j.ajop.20170503.11

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    AMA Style

    Yasser Saad Rammah. Gamma Radiation Induced Modification on Optical Gap of Polycarbonate Detectors. Am J Opt Photonics. 2017;5(3):24-29. doi: 10.11648/j.ajop.20170503.11

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  • @article{10.11648/j.ajop.20170503.11,
      author = {Yasser Saad Rammah},
      title = {Gamma Radiation Induced Modification on Optical Gap of Polycarbonate Detectors},
      journal = {American Journal of Optics and Photonics},
      volume = {5},
      number = {3},
      pages = {24-29},
      doi = {10.11648/j.ajop.20170503.11},
      url = {https://doi.org/10.11648/j.ajop.20170503.11},
      eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ajop.20170503.11},
      abstract = {Exposure of polycarbonate detectors to high γ- ray doses causes a great effect on their structural. Samples of Makrofol DE 1-1 nuclear track detectors (NTDs) were irradiated with gamma doses in the range of 1-100 kGy using 1.25 MeV 60Co source of dose rate 4 kGy/h. The optical characterization of these detectors have been studied through the measurements of UV-visible absorption spectra of blank and γ- irradiated samples. The UV-visible spectra of γ- irradiated samples revealed color centers in the range (310-320 nm). Direct and indirect allowed optical band gap energies, refractive index (n), the number of carbon atoms per conjugated length (N), and the number of carbon atoms per cluster (M) for pristine and γ-irradiated samples were determined. Results revealed that optical band gaps decrease, while n, N, and M increase with increasing of γ-irradiated doses. This study sheds light on the basis of γ-interaction mechanisms with the polymeric detectors and use of Makrofol DE 1-1 in gamma dose determination.},
     year = {2017}
    }
    

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  • TY  - JOUR
    T1  - Gamma Radiation Induced Modification on Optical Gap of Polycarbonate Detectors
    AU  - Yasser Saad Rammah
    Y1  - 2017/10/30
    PY  - 2017
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    DO  - 10.11648/j.ajop.20170503.11
    T2  - American Journal of Optics and Photonics
    JF  - American Journal of Optics and Photonics
    JO  - American Journal of Optics and Photonics
    SP  - 24
    EP  - 29
    PB  - Science Publishing Group
    SN  - 2330-8494
    UR  - https://doi.org/10.11648/j.ajop.20170503.11
    AB  - Exposure of polycarbonate detectors to high γ- ray doses causes a great effect on their structural. Samples of Makrofol DE 1-1 nuclear track detectors (NTDs) were irradiated with gamma doses in the range of 1-100 kGy using 1.25 MeV 60Co source of dose rate 4 kGy/h. The optical characterization of these detectors have been studied through the measurements of UV-visible absorption spectra of blank and γ- irradiated samples. The UV-visible spectra of γ- irradiated samples revealed color centers in the range (310-320 nm). Direct and indirect allowed optical band gap energies, refractive index (n), the number of carbon atoms per conjugated length (N), and the number of carbon atoms per cluster (M) for pristine and γ-irradiated samples were determined. Results revealed that optical band gaps decrease, while n, N, and M increase with increasing of γ-irradiated doses. This study sheds light on the basis of γ-interaction mechanisms with the polymeric detectors and use of Makrofol DE 1-1 in gamma dose determination.
    VL  - 5
    IS  - 3
    ER  - 

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Author Information
  • Department of Physics, Faculty of Science, Menoufia University, Shebin El-Koom, Egypt

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