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Erkoyuncu I, Akman F, Ogul H, Kaçal MR, Polat H, Demirkol I, Dilsiz K, Ertuğral B. A detailed investigation of gamma and neutron shielding capabilities of ternary composites doped with polyacrylonitrile and gadolinium (III) sulfate. Appl Radiat Isot 2023; 196:110789. [PMID: 36996534 DOI: 10.1016/j.apradiso.2023.110789] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2023] [Revised: 03/15/2023] [Accepted: 03/22/2023] [Indexed: 03/28/2023]
Abstract
The shielding efficiencies of gamma and neutron radiations for ternary composites containing polyester resin, polyacrylonitrile and gadolinium (III) sulfate at different ratios were investigated in the present study. In order to investigate the gamma radiation shielding capacity of the produced ternary composites, linear and mass attenuation coefficients, half value layer, effective atomic number and radiation protection efficiency parameters were determined experimentally, theoretically and using the GEANT4 simulation code. The gamma shielding capabilities of the composites were studied in the photon energy range of 59.5-1332.5 keV. In order to investigate the neutron shielding abilities of composites, inelastic, elastic, capture and transport numbers, total macroscopic cross section and mean free path parameters were determined with the help of GEANT4 simulation code. In addition, the number of transmitted neutrons at different sample thicknesses and neutron energies were also determined. It was observed that gamma radiation shielding properties were improved due to the increasing amount of gadolinium (III) sulfate and neutron shielding properties were improved due to the increasing amount of polyacrylonitrile. While the composite coded P0Gd50 exhibits a better gamma radiation shielding ability than the others, the neutron shielding of the sample coded P50Gd0 is also more favorable than the others.
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Affiliation(s)
- I Erkoyuncu
- Bingöl University, Faculty of Arts and Science, Department of Physics, 12000, Bingöl, Turkey.
| | - F Akman
- Bingöl University, Vocational School of Social Sciences, Department of Property protection and Security, Program of Occupational Health and Safety, 12000, Bingöl, Turkey; Bingöl University, Central Laboratory Application and Research Center, 12000, Bingöl, Turkey
| | - H Ogul
- Department of Nuclear Engineering, Faculty of Engineering and Architecture, Sinop University, Sinop, Turkey
| | - M R Kaçal
- Giresun University, Arts and Sciences Faculty, Department of Physics, 28100, Giresun, Turkey
| | - H Polat
- Bingöl University, Vocational School of Technical Sciences, Department of Architecture and Urban Planning, 12000, Bingöl, Turkey
| | - I Demirkol
- Bingöl University, Faculty of Arts and Science, Department of Physics, 12000, Bingöl, Turkey
| | - K Dilsiz
- Bingöl University, Faculty of Arts and Science, Department of Physics, 12000, Bingöl, Turkey
| | - B Ertuğral
- Giresun University, Arts and Sciences Faculty, Department of Physics, 28100, Giresun, Turkey
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Dual X-ray- and Neutron-Shielding Properties of Gd2O3/NR Composites with Autonomous Self-Healing Capabilities. Polymers (Basel) 2022; 14:polym14214481. [DOI: 10.3390/polym14214481] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2022] [Revised: 10/18/2022] [Accepted: 10/19/2022] [Indexed: 11/05/2022] Open
Abstract
The neutron- and X-ray-shielding, morphological, physical, mechanical, and self-healing properties were investigated for natural rubber (NR) composites containing varying gadolinium oxide (Gd2O3) contents (0, 25, 50, 75, and 100 parts per hundred parts of rubber; phr) to investigate their potential uses as self-healing and flexible neutron- and X-ray-shielding materials. Gd2O3 was selected as a radiation protective filler in this work due to its preferable properties of having relatively high neutron absorption cross-section (σabs), atomic number (Z), and density (ρ) that could potentially enhance interaction probabilities with incident radiation. The results indicated that the overall neutron-shielding and X-ray-shielding properties of the NR composites were enhanced with the addition of Gd2O3, as evidenced by considerable reductions in the half-value layer (HVL) values of the samples containing 100 phr Gd2O3 to just 1.9 mm and 1.3 mm for thermal neutrons and 60 kV X-rays, respectively. Furthermore, the results revealed that, with the increase in Gd2O3 content, the mean values (± standard deviations) of the tensile strength and elongation at break of the NR composites decreased, whereas the hardness (Shore A) increased, for which extreme values were found in the sample with 100 phr Gd2O3 (3.34 ± 0.26 MPa, 411 ± 9%, and 50 ± 1, respectively). In order to determine the self-healing properties of the NR composites, the surfaces of the cut samples were gently pressed together, and they remained in contact for 60 min; then, the self-healing properties (the recoverable strength and the %Recovery) of the self-healed samples were measured, which were in the ranges of 0.30–0.40 MPa and 3.7–9.4%, respectively, for all the samples. These findings confirmed the ability to autonomously self-heal damaged surfaces through the generation of a reversible ionic supramolecular network. In summary, the outcomes from this work suggested that the developed Gd2O3/NR composites have great potential to be utilized as effective shielding materials, with additional dual shielding and self-healing capabilities that could prolong the lifetime of the materials, reduce the associated costs of repairing or replacing damaged equipment, and enhance the safety of all users and the public.
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Intachai N, Wantana N, Kaewjaeng S, Chaiphaksa W, Cheewasukhanont W, Htun K, Kothan S, Kim H, Kaewkhao J. Effect of Gd2O3 on radiation shielding, physical and optical properties of sodium borosilicate glass system. Radiat Phys Chem Oxf Engl 1993 2022. [DOI: 10.1016/j.radphyschem.2022.110361] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
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Esawii HA, Salama E, Sayed El-ahll L, Moustafa M, Saleh HM. High impact tungsten-doped borosilicate glass composite for gamma and neutron transparent radiation shielding. PROGRESS IN NUCLEAR ENERGY 2022. [DOI: 10.1016/j.pnucene.2022.104321] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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