A preliminary study to metaheuristic approach in multilayer radiation shielding optimization

Sazali, Muhammad Arif; Rashid, Nahrul Khair Alang Md; Hamzah, Khaidzir

doi:10.1088/1757-899x/298/1/012042

Cited by 7 publications

(4 citation statements)

References 22 publications

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“…These composites showed excellent shielding ability for X-rays. Further, using the group optimization algorithm, Sazali 19 , 20 confirmed that layered composites are superior to conventional blended ones. Sonsilphong et al 7 reported that a W/Bi layered sheet with a thickness of only 0.14 mm (two layers, W/Bi thickness ratio of 0.8) had the same shielding efficiency as a standard lead plate (0.5 mm), even though the density of the former was 36% lower.…”

Section: Introductionmentioning

confidence: 91%

High-efficiency, flexibility and lead-free X-ray shielding multilayered polymer composites: layered structure design and shielding mechanism

Zhou²,

Zhang

et al. 2021

Sci Rep

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To overcome the severe toxicity and blind absorption zone of conventional lead-based shielding materials for X-rays in the 70–90 keV range, the lead-free multilayered polymer composites were designed and fabricated. The effects of the direction of incidence of the X-rays and number of layers as well as layer thickness ratio of the (tungsten/ethylene-octene copolymer)/(bismuth/ethylene-octene copolymer) layered composites on their shielding efficiency were studied systematically. Compared to the traditional polymer blending, the multilayered polymer composites exhibited the improved photon attenuation. The multilayered polymer composites (layer thickness ratio was 3:7) with 6 layers had the best X-ray shielding ability. Moreover, the X-ray shielding provided by the multi-layered interfaces and the multiple complementary effect of the absorption within the multilayered structure were firstly proposed based on computer simulations. The multilayered structural design effectively weakened the probability of the X-ray penetration. Therefore, the X-ray shielding capability can be effectively enhanced through increasing number of layers and the synergistic effect of multi-layered interfaces. The experimental results of this study can serve as guidelines for the fabrication of flexibility, lead-free, lightweight and high-efficiency X-ray shielding materials.

show abstract

Section: Introductionmentioning

confidence: 91%

High-efficiency, flexibility and lead-free X-ray shielding multilayered polymer composites: layered structure design and shielding mechanism

Zhou²,

Zhang

et al. 2021

Sci Rep

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show abstract

“…These composites showed excellent shielding ability for X-rays. Further, using the group optimization algorithm, Sazali [17][18] con rmed that layered composites are superior to conventional blended ones. Sonsilphong et al 7 reported that a W/Bi layered sheet with a thickness of only 0.14 mm (two layers, W/Bi thickness ratio of 0.8) had the same shielding e ciency as a standard lead plate (0.5 mm), even though the density of the former was 36% lower.…”

Section: Introductionmentioning

confidence: 99%

High-Efficiency, Flexibility and Lead-Free X-ray Shielding Multilayered Polymer Composites

Zhou²,

Zhang

et al. 2020

Preprint

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To overcome the severe toxicity and blind absorption zone of conventional lead-based shielding materials for X-rays in the 70-90 keV range, the lead-free multilayered polymer composites were designed and fabricated. The effects of the direction of incidence of the X-rays and number of layers as well as layer thickness ratio of the (tungsten/ethylene-octene copolymer)/(bismuth/ethylene-octene copolymer) layered composites on their shielding efficiency were studied systematically. Compared to the traditional polymer blending, the multilayered polymer composites exhibited the improved photon attenuation. The multilayered polymer composites (layer thickness ratio was 3:7) with 6 layers had the best X-ray shielding ability. Moreover, the X-ray shielding provided by the multi-layered interfaces and the multiple complementary effect of the absorption within the multilayered structure were firstly proposed based on computer simulations. The multilayered structural design effectively weakened the probability of the X-ray penetration. Therefore, the X-ray shielding capability can be effectively enhanced through increasing number of layers and the synergistic effect of multi-layered interfaces. The experimental results of this study can serve as guidelines for the fabrication of flexibility, lead-free, lightweight and high-efficiency X-ray shielding materials.

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“…are used as binder components in tungsten-based composites. [21][22][23][24][25][26][27][28][29][30] There are many methods of manufacturing composites based on refractory materials: magnetron sputtering, gas sputtering, centrifugal sputtering, spark plasma sintering, 3D printing technologies, selective laser melting, extrusion, inkjet printing, hot stamping, etc. 25,[31][32][33][34][35][36][37] However, the high duration of the processes suggests the need to use other synthesis methods, the duration of which is shorter and the nal result matches the requirements for the material.…”

Section: Introductionmentioning

confidence: 99%

Heavy alloy based on tungsten and bismuth: fabrication, crystal structure, morphology, and shielding efficiency against gamma-radiation

Tishkevich,

Rotkovich,

German

et al. 2023

RSC Adv.

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A preliminary study to metaheuristic approach in multilayer radiation shielding optimization

Cited by 7 publications

References 22 publications

High-efficiency, flexibility and lead-free X-ray shielding multilayered polymer composites: layered structure design and shielding mechanism

High-efficiency, flexibility and lead-free X-ray shielding multilayered polymer composites: layered structure design and shielding mechanism

High-Efficiency, Flexibility and Lead-Free X-ray Shielding Multilayered Polymer Composites

Heavy alloy based on tungsten and bismuth: fabrication, crystal structure, morphology, and shielding efficiency against gamma-radiation

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