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Broad Beam and Gamma Spectrometric Parameters of Some Granites

Received: 3 October 2019     Accepted: 31 October 2019     Published: 7 November 2019
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Abstract

Using a g-ray spectrometer with 3"x3" NaI (Tl) detector the linear and mass attenuation coefficients (m/r) and (mb/r) from narrow and broad beam experimental arrangements have been measured and compared with the theoretical values for the granites Double Black, DB, from India, Rose Al-Howdy, RH, from Aswan, south Egypt and Bianco Halayeb, BK, from Halayeb, south Egypt. The photon energies lei in the range 0.081-1.332 MeV from the radioisotopes 133Ba, 137Cs and 60Co. The build-up factor B, the effective atomic number Zeff, and the total atomic cross-section st for the granites as a function of photon energy were determined and discussed. It is found that the experimental results are consistent, within the experimental errors, with the theoretical values. The effective atomic number Zeff, the build-up factor B, and the total atomic cross-section st were calculated and discussed as a function of photon energy. The B factor is large at low gamma energy and not sensitive for discrimination between the granites. The maximum Zeff corresponds to minimum B factor at the photon energy 0.356 MeV. The broad beam geometry is more efficient than narrow beam geometry in characterizing the shielding properties of the studied granites.

Published in Radiation Science and Technology (Volume 5, Issue 4)
DOI 10.11648/j.rst.20190504.13
Page(s) 47-52
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), 2019. Published by Science Publishing Group

Keywords

Gamma-ray Spectrometry, Radiation Protection, Mass Attenuation Coefficients, Build-up Factor, Effective Atomic Number, Total Atomic Cross-section

References
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  • APA Style

    Abdul-Hamid Hussein El-Kateb, Asmaa Sophy Seif El-Nasr, Mahmoud Mohamed Bakry. (2019). Broad Beam and Gamma Spectrometric Parameters of Some Granites. Radiation Science and Technology, 5(4), 47-52. https://doi.org/10.11648/j.rst.20190504.13

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    ACS Style

    Abdul-Hamid Hussein El-Kateb; Asmaa Sophy Seif El-Nasr; Mahmoud Mohamed Bakry. Broad Beam and Gamma Spectrometric Parameters of Some Granites. Radiat. Sci. Technol. 2019, 5(4), 47-52. doi: 10.11648/j.rst.20190504.13

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    AMA Style

    Abdul-Hamid Hussein El-Kateb, Asmaa Sophy Seif El-Nasr, Mahmoud Mohamed Bakry. Broad Beam and Gamma Spectrometric Parameters of Some Granites. Radiat Sci Technol. 2019;5(4):47-52. doi: 10.11648/j.rst.20190504.13

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  • @article{10.11648/j.rst.20190504.13,
      author = {Abdul-Hamid Hussein El-Kateb and Asmaa Sophy Seif El-Nasr and Mahmoud Mohamed Bakry},
      title = {Broad Beam and Gamma Spectrometric Parameters of Some Granites},
      journal = {Radiation Science and Technology},
      volume = {5},
      number = {4},
      pages = {47-52},
      doi = {10.11648/j.rst.20190504.13},
      url = {https://doi.org/10.11648/j.rst.20190504.13},
      eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.rst.20190504.13},
      abstract = {Using a g-ray spectrometer with 3"x3" NaI (Tl) detector the linear and mass attenuation coefficients (m/r) and (mb/r) from narrow and broad beam experimental arrangements have been measured and compared with the theoretical values for the granites Double Black, DB, from India, Rose Al-Howdy, RH, from Aswan, south Egypt and Bianco Halayeb, BK, from Halayeb, south Egypt. The photon energies lei in the range 0.081-1.332 MeV from the radioisotopes 133Ba, 137Cs and 60Co. The build-up factor B, the effective atomic number Zeff, and the total atomic cross-section st for the granites as a function of photon energy were determined and discussed. It is found that the experimental results are consistent, within the experimental errors, with the theoretical values. The effective atomic number Zeff, the build-up factor B, and the total atomic cross-section st were calculated and discussed as a function of photon energy. The B factor is large at low gamma energy and not sensitive for discrimination between the granites. The maximum Zeff corresponds to minimum B factor at the photon energy 0.356 MeV. The broad beam geometry is more efficient than narrow beam geometry in characterizing the shielding properties of the studied granites.},
     year = {2019}
    }
    

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  • TY  - JOUR
    T1  - Broad Beam and Gamma Spectrometric Parameters of Some Granites
    AU  - Abdul-Hamid Hussein El-Kateb
    AU  - Asmaa Sophy Seif El-Nasr
    AU  - Mahmoud Mohamed Bakry
    Y1  - 2019/11/07
    PY  - 2019
    N1  - https://doi.org/10.11648/j.rst.20190504.13
    DO  - 10.11648/j.rst.20190504.13
    T2  - Radiation Science and Technology
    JF  - Radiation Science and Technology
    JO  - Radiation Science and Technology
    SP  - 47
    EP  - 52
    PB  - Science Publishing Group
    SN  - 2575-5943
    UR  - https://doi.org/10.11648/j.rst.20190504.13
    AB  - Using a g-ray spectrometer with 3"x3" NaI (Tl) detector the linear and mass attenuation coefficients (m/r) and (mb/r) from narrow and broad beam experimental arrangements have been measured and compared with the theoretical values for the granites Double Black, DB, from India, Rose Al-Howdy, RH, from Aswan, south Egypt and Bianco Halayeb, BK, from Halayeb, south Egypt. The photon energies lei in the range 0.081-1.332 MeV from the radioisotopes 133Ba, 137Cs and 60Co. The build-up factor B, the effective atomic number Zeff, and the total atomic cross-section st for the granites as a function of photon energy were determined and discussed. It is found that the experimental results are consistent, within the experimental errors, with the theoretical values. The effective atomic number Zeff, the build-up factor B, and the total atomic cross-section st were calculated and discussed as a function of photon energy. The B factor is large at low gamma energy and not sensitive for discrimination between the granites. The maximum Zeff corresponds to minimum B factor at the photon energy 0.356 MeV. The broad beam geometry is more efficient than narrow beam geometry in characterizing the shielding properties of the studied granites.
    VL  - 5
    IS  - 4
    ER  - 

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Author Information
  • Faculty of Science, Helwan University, Helwan, Cairo, Egypt

  • Faculty of Science, Helwan University, Helwan, Cairo, Egypt

  • Faculty of Science, Helwan University, Helwan, Cairo, Egypt

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