Micro gadolinium oxide dispersed flexible composites developed for the shielding of thermal neutron/gamma rays
In this study, a series of flexible neutron/gamma shielding composites are fabricated through the doping of Gd2O3 into the matrix of SEBS with (MGd2O3: MSEBS) % from 5% to 100%. Neutron transmittance test shows an exponential attenuation with the increase of areal density of Gd, in which the transmi...
| Main Authors: | , , , , , , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2023-05-01
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| Series: | Nuclear Engineering and Technology |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S1738573323001183 |
| _version_ | 1797823791202566144 |
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| author | Boyu Wang Xiaolin Guo Lin Yuan Qinglong Fang Xiaojuan Wang Tianyi Qiu Caifeng Lai Qi Wang Yang Liu |
| author_facet | Boyu Wang Xiaolin Guo Lin Yuan Qinglong Fang Xiaojuan Wang Tianyi Qiu Caifeng Lai Qi Wang Yang Liu |
| author_sort | Boyu Wang |
| collection | DOAJ |
| description | In this study, a series of flexible neutron/gamma shielding composites are fabricated through the doping of Gd2O3 into the matrix of SEBS with (MGd2O3: MSEBS) % from 5% to 100%. Neutron transmittance test shows an exponential attenuation with the increase of areal density of Gd, in which the transmittance T ranges from 59.1440% to 35.3026%, with standard deviation less than 2.2743%, mass attenuation coefficient μm from 0.3194 cm2/g to 0.4999 cm2/g, and half value layer-HVL value from 2.4530 mm to 1.1313 mm. Shielding efficiency of the Gd2O3/SEBS composites is basically improved in comparison with that of B4C/SEBS. The transmittance T, mass/linear attenuation coefficient μm and μ, HVL and effective atomic number Zeff for the shielding of γ rays (39 keV, 59 keV and 122 keV) are measured and calculated with XCOM as well as MCX programs. Finally, plots of the three dimensional relationships between transmittance, doping amount and thickness are provided to the guidance for engineering shielding design. In summary, the Gd2O3/SEBS composite is proved to be an effective flexible neutron/low energy γ rays shielding material, which could be of potential applications in the field of nuclear technology and nuclear engineering. |
| first_indexed | 2024-03-13T10:28:15Z |
| format | Article |
| id | doaj.art-b98b262f17b44630be2e407b626db12c |
| institution | Directory Open Access Journal |
| issn | 1738-5733 |
| language | English |
| last_indexed | 2024-03-13T10:28:15Z |
| publishDate | 2023-05-01 |
| publisher | Elsevier |
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| series | Nuclear Engineering and Technology |
| spelling | doaj.art-b98b262f17b44630be2e407b626db12c2023-05-19T04:45:17ZengElsevierNuclear Engineering and Technology1738-57332023-05-0155517631774Micro gadolinium oxide dispersed flexible composites developed for the shielding of thermal neutron/gamma raysBoyu Wang0Xiaolin Guo1Lin Yuan2Qinglong Fang3Xiaojuan Wang4Tianyi Qiu5Caifeng Lai6Qi Wang7Yang Liu8School of Science, Xi'an Polytechnic University, Xi'an, 710048, Shaanxi, China; Xi'an Key Laboratory of Nuclear Protection Textile Equipment Technology, Xi'an, 710048, Shaanxi, China; Engineering Research Center of Flexible Radiation Protection Technology, Universities of Shaanxi Province, Xi'an, 710048, Shaanxi, ChinaSchool of Science, Xi'an Polytechnic University, Xi'an, 710048, Shaanxi, China; Xi'an Key Laboratory of Nuclear Protection Textile Equipment Technology, Xi'an, 710048, Shaanxi, China; Engineering Research Center of Flexible Radiation Protection Technology, Universities of Shaanxi Province, Xi'an, 710048, Shaanxi, ChinaSchool of Science, Xi'an Polytechnic University, Xi'an, 710048, Shaanxi, China; Xi'an Key Laboratory of Nuclear Protection Textile Equipment Technology, Xi'an, 710048, Shaanxi, China; Engineering Research Center of Flexible Radiation Protection Technology, Universities of Shaanxi Province, Xi'an, 710048, Shaanxi, ChinaSchool of Science, Xi'an Polytechnic University, Xi'an, 710048, Shaanxi, China; Xi'an Key Laboratory of Nuclear Protection Textile Equipment Technology, Xi'an, 710048, Shaanxi, China; Engineering Research Center of Flexible Radiation Protection Technology, Universities of Shaanxi Province, Xi'an, 710048, Shaanxi, ChinaSchool of Science, Xi'an Polytechnic University, Xi'an, 710048, Shaanxi, China; Xi'an Key Laboratory of Nuclear Protection Textile Equipment Technology, Xi'an, 710048, Shaanxi, China; Engineering Research Center of Flexible Radiation Protection Technology, Universities of Shaanxi Province, Xi'an, 710048, Shaanxi, ChinaSchool of Science, Xi'an Polytechnic University, Xi'an, 710048, Shaanxi, China; Xi'an Key Laboratory of Nuclear Protection Textile Equipment Technology, Xi'an, 710048, Shaanxi, China; Engineering Research Center of Flexible Radiation Protection Technology, Universities of Shaanxi Province, Xi'an, 710048, Shaanxi, ChinaInstitute of Nuclear Physics and Chemistry, China Academy of Engineering Physics, Mianyang, 621900, Sichuan, ChinaScience and Technology on Nuclear Data Laboratory, China Institute of Atomic Energy, Beijing, 102413, ChinaSchool of Science, Xi'an Polytechnic University, Xi'an, 710048, Shaanxi, China; Xi'an Key Laboratory of Nuclear Protection Textile Equipment Technology, Xi'an, 710048, Shaanxi, China; Engineering Research Center of Flexible Radiation Protection Technology, Universities of Shaanxi Province, Xi'an, 710048, Shaanxi, China; Corresponding author. No.58 Lintong Shangu Road, Xi'an, 710600, Shaanxi, China.In this study, a series of flexible neutron/gamma shielding composites are fabricated through the doping of Gd2O3 into the matrix of SEBS with (MGd2O3: MSEBS) % from 5% to 100%. Neutron transmittance test shows an exponential attenuation with the increase of areal density of Gd, in which the transmittance T ranges from 59.1440% to 35.3026%, with standard deviation less than 2.2743%, mass attenuation coefficient μm from 0.3194 cm2/g to 0.4999 cm2/g, and half value layer-HVL value from 2.4530 mm to 1.1313 mm. Shielding efficiency of the Gd2O3/SEBS composites is basically improved in comparison with that of B4C/SEBS. The transmittance T, mass/linear attenuation coefficient μm and μ, HVL and effective atomic number Zeff for the shielding of γ rays (39 keV, 59 keV and 122 keV) are measured and calculated with XCOM as well as MCX programs. Finally, plots of the three dimensional relationships between transmittance, doping amount and thickness are provided to the guidance for engineering shielding design. In summary, the Gd2O3/SEBS composite is proved to be an effective flexible neutron/low energy γ rays shielding material, which could be of potential applications in the field of nuclear technology and nuclear engineering.http://www.sciencedirect.com/science/article/pii/S1738573323001183Radiation shieldingNeutron/gamma raysMass attenuation coefficientGadolinium oxideFlexible material |
| spellingShingle | Boyu Wang Xiaolin Guo Lin Yuan Qinglong Fang Xiaojuan Wang Tianyi Qiu Caifeng Lai Qi Wang Yang Liu Micro gadolinium oxide dispersed flexible composites developed for the shielding of thermal neutron/gamma rays Nuclear Engineering and Technology Radiation shielding Neutron/gamma rays Mass attenuation coefficient Gadolinium oxide Flexible material |
| title | Micro gadolinium oxide dispersed flexible composites developed for the shielding of thermal neutron/gamma rays |
| title_full | Micro gadolinium oxide dispersed flexible composites developed for the shielding of thermal neutron/gamma rays |
| title_fullStr | Micro gadolinium oxide dispersed flexible composites developed for the shielding of thermal neutron/gamma rays |
| title_full_unstemmed | Micro gadolinium oxide dispersed flexible composites developed for the shielding of thermal neutron/gamma rays |
| title_short | Micro gadolinium oxide dispersed flexible composites developed for the shielding of thermal neutron/gamma rays |
| title_sort | micro gadolinium oxide dispersed flexible composites developed for the shielding of thermal neutron gamma rays |
| topic | Radiation shielding Neutron/gamma rays Mass attenuation coefficient Gadolinium oxide Flexible material |
| url | http://www.sciencedirect.com/science/article/pii/S1738573323001183 |
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