Gamma Radiation Induced Modification on Optical Gap of Polycarbonate Detectors

Yasser Saad Rammah

doi:doi:10.11648/j.ajop.20170503.11

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Gamma Radiation Induced Modification on Optical Gap of Polycarbonate Detectors

Yasser Saad Rammah

Published in American Journal of Optics and Photonics (Volume 5, Issue 3)

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), 2024. 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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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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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
N1  - https://doi.org/10.11648/j.ajop.20170503.11
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

Yasser Saad Rammah

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

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APA Style

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

Copy | Download

@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}
}

Copy | Download

TY  - JOUR
T1  - Gamma Radiation Induced Modification on Optical Gap of Polycarbonate Detectors
AU  - Yasser Saad Rammah
Y1  - 2017/10/30
PY  - 2017
N1  - https://doi.org/10.11648/j.ajop.20170503.11
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  -

Copy | Download