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Polyethylene composite doped with cadmium and tungsten oxide for neutron-gamma multilayer shielding.

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Title: Polyethylene composite doped with cadmium and tungsten oxide for neutron-gamma multilayer shielding.
Authors: Sheng, Chin Lok1 (AUTHOR), Sazali, Muhammad Arif1 (AUTHOR), Abu Bakar, Asyraf Arif2 (AUTHOR), Ismail, Ahmad Hambali2 (AUTHOR), Yahya, Roslan2 (AUTHOR), Sarkawi, Muhammad Syahir1 (AUTHOR), Mohd Ali, Nur Syazwani1 (AUTHOR), Jamaluddin, Khairulnadzmi1 (AUTHOR)
Source: Radiation Physics & Chemistry. Apr2025, Vol. 229, pN.PAG-N.PAG. 1p.
Subjects: Attenuation coefficients, Macroscopic cross sections, Field emission electron microscopy, Cadmium oxide, Tungsten oxides, Tungsten
Abstract: Radiation shielding is crucial to ensuring the safety of the people and the environment. Concrete and lead are common materials with great shielding properties against gamma and neutron radiation, yet they have drawbacks such as being harmful to human health, high cost, and seismic vulnerability. Therefore, the aim of this study is to develop polyethylene (PE)-based composites doped with cadmium (Cd) and tungsten oxide (WO 3), to determine the neutron-gamma shielding properties of the composites, and to compare the radiation shielding performance of multilayer shielding of the composites and the base PE. The composites were fabricated using the melt-mixing and hot-pressing methods. They were characterized using X-ray diffraction, micro-computed tomography scanning, and field emission scanning electron microscopy to observe the dispersion of filler particles in the PE matrix. Results show that the filler elements have good distribution in the composite. Their shielding performance was evaluated using the 241Am/Be neutron and 137Cs gamma sources at the Malaysian Nuclear Agency. The results show that the PE+20% WO 3 has the highest values of neutron removal macroscopic cross-section and gamma linear attenuation coefficient for single-layer shielding. For multilayer configuration, PE+10%Cd with PE+10% WO 3 (Cd10/W10) has the best mixed neutron-gamma radiation attenuation performance. The results will help in the development of alternative materials for better radiation protection. • Novel polyethylene-based composites for radiation shielding. • Effective dispersion of cadmium and tungsten oxide fillers. • Superior neutron-gamma attenuation compared to base PE. • Optimal shielding performance in Cd10/W10 multilayer configuration. [ABSTRACT FROM AUTHOR]
Copyright of Radiation Physics & Chemistry is the property of Pergamon Press - An Imprint of Elsevier Science and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Engineering Source
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Header DbId: egs
DbLabel: Engineering Source
An: 182607681
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PubTypeId: academicJournal
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  Data: Polyethylene composite doped with cadmium and tungsten oxide for neutron-gamma multilayer shielding.
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  Data: <searchLink fieldCode="AR" term="%22Sheng%2C+Chin+Lok%22">Sheng, Chin Lok</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Sazali%2C+Muhammad+Arif%22">Sazali, Muhammad Arif</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Abu+Bakar%2C+Asyraf+Arif%22">Abu Bakar, Asyraf Arif</searchLink><relatesTo>2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Ismail%2C+Ahmad+Hambali%22">Ismail, Ahmad Hambali</searchLink><relatesTo>2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Yahya%2C+Roslan%22">Yahya, Roslan</searchLink><relatesTo>2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Sarkawi%2C+Muhammad+Syahir%22">Sarkawi, Muhammad Syahir</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Mohd+Ali%2C+Nur+Syazwani%22">Mohd Ali, Nur Syazwani</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Jamaluddin%2C+Khairulnadzmi%22">Jamaluddin, Khairulnadzmi</searchLink><relatesTo>1</relatesTo> (AUTHOR)
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  Data: <searchLink fieldCode="JN" term="%22Radiation+Physics+%26+Chemistry%22">Radiation Physics & Chemistry</searchLink>. Apr2025, Vol. 229, pN.PAG-N.PAG. 1p.
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  Data: <searchLink fieldCode="DE" term="%22Attenuation+coefficients%22">Attenuation coefficients</searchLink><br /><searchLink fieldCode="DE" term="%22Macroscopic+cross+sections%22">Macroscopic cross sections</searchLink><br /><searchLink fieldCode="DE" term="%22Field+emission+electron+microscopy%22">Field emission electron microscopy</searchLink><br /><searchLink fieldCode="DE" term="%22Cadmium+oxide%22">Cadmium oxide</searchLink><br /><searchLink fieldCode="DE" term="%22Tungsten+oxides%22">Tungsten oxides</searchLink><br /><searchLink fieldCode="DE" term="%22Tungsten%22">Tungsten</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: Radiation shielding is crucial to ensuring the safety of the people and the environment. Concrete and lead are common materials with great shielding properties against gamma and neutron radiation, yet they have drawbacks such as being harmful to human health, high cost, and seismic vulnerability. Therefore, the aim of this study is to develop polyethylene (PE)-based composites doped with cadmium (Cd) and tungsten oxide (WO 3), to determine the neutron-gamma shielding properties of the composites, and to compare the radiation shielding performance of multilayer shielding of the composites and the base PE. The composites were fabricated using the melt-mixing and hot-pressing methods. They were characterized using X-ray diffraction, micro-computed tomography scanning, and field emission scanning electron microscopy to observe the dispersion of filler particles in the PE matrix. Results show that the filler elements have good distribution in the composite. Their shielding performance was evaluated using the 241Am/Be neutron and 137Cs gamma sources at the Malaysian Nuclear Agency. The results show that the PE+20% WO 3 has the highest values of neutron removal macroscopic cross-section and gamma linear attenuation coefficient for single-layer shielding. For multilayer configuration, PE+10%Cd with PE+10% WO 3 (Cd10/W10) has the best mixed neutron-gamma radiation attenuation performance. The results will help in the development of alternative materials for better radiation protection. • Novel polyethylene-based composites for radiation shielding. • Effective dispersion of cadmium and tungsten oxide fillers. • Superior neutron-gamma attenuation compared to base PE. • Optimal shielding performance in Cd10/W10 multilayer configuration. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Radiation Physics & Chemistry is the property of Pergamon Press - An Imprint of Elsevier Science and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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RecordInfo BibRecord:
  BibEntity:
    Identifiers:
      – Type: doi
        Value: 10.1016/j.radphyschem.2024.112506
    Languages:
      – Code: eng
        Text: English
    PhysicalDescription:
      Pagination:
        PageCount: 1
        StartPage: N.PAG
    Subjects:
      – SubjectFull: Attenuation coefficients
        Type: general
      – SubjectFull: Macroscopic cross sections
        Type: general
      – SubjectFull: Field emission electron microscopy
        Type: general
      – SubjectFull: Cadmium oxide
        Type: general
      – SubjectFull: Tungsten oxides
        Type: general
      – SubjectFull: Tungsten
        Type: general
    Titles:
      – TitleFull: Polyethylene composite doped with cadmium and tungsten oxide for neutron-gamma multilayer shielding.
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            NameFull: Sheng, Chin Lok
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            NameFull: Sazali, Muhammad Arif
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            NameFull: Abu Bakar, Asyraf Arif
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            NameFull: Ismail, Ahmad Hambali
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            NameFull: Yahya, Roslan
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          Dates:
            – D: 01
              M: 04
              Text: Apr2025
              Type: published
              Y: 2025
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              Value: 0969806X
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              Value: 229
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            – TitleFull: Radiation Physics & Chemistry
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