Attenuation of <sup>60</sup>Co gamma rays by barium acrylic resin composite shields

Abdulla, Riaz; Fidha, Mariyam; Rao, BH Sripathi; Kudkuli, Jagadish; Rekha, P. D.; Sharma, S. D.

doi:10.4103/0972-0464.176157

Cited by 5 publications

(1 citation statement)

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“…(Flora et al 2012;La et al 2016). The radiation attenuation property of nanomaterials has been explored extensively in the past to replace the existing toxic lead-based materials for radiation protection (Abdulla et al 2015;Adliene et al 2015;Aral et al 2016;Fujimori et al 2011;Kim et al 2015). For example, Fontainha et al (2016) have demonstrated a 60% attenuation of X-rays of energy 40 keV by the nanocomposites of poly(vinylidene fluoride-trifluoroethylene) and zirconia nanoparticles.…”

Section: Introductionmentioning

confidence: 99%

Preparation, characterization and X-ray attenuation property of Gd2O3-based nanocomposites

2017

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In an attempt to develop an alternate to leadbased X-ray shielding material, we describe the X-ray attenuation property of nanocomposites containing Gd 2 O 3 as nanofiller and silicone resin as matrix, prepared by a simple solution-casting technique. Gd 2 O 3 nanoparticles of size 30 and 56 nm are used at concentrations of 25 and 2.5 wt%. The nanoparticles and the nanocomposites are characterized using X-ray diffraction (XRD) studies, small angle X-ray spectroscopy (SAXS), thermogravimetric analysis (TGA), differential scanning calorimetry (DSC) and atomic force microscopy (AFM). The X-ray attenuation property of nanocomposites, studied using an industrial X-ray unit, shows that nanocomposites containing nanoparticles of size 56 nm (G2) exhibit better attenuation than nanocomposites containing nanoparticles of size 30 nm (G1), which is attributed to the greater interfacial interaction between the G2 nanofillers and silicone matrix. In the case of nanocomposites containing G1 nanoparticles, the interfacial interaction between the nanofiller and the matrix is so weak that it results in pulling out of nanofillers, causing voids in the matrix, which act as X-ray transparent region, thereby reducing the overall X-ray attenuation property of G1 nanocomposites. This is further corroborated from the AFM images of the nanocomposites. The weight loss and heat flow curves of pure silicone matrix and the nanocomposites containing Gd 2 O 3 nanoparticles of size 30 and 56 nm show the degradation of silicone resin, due to chain scission, between 403 and 622°C. The same onset temperature (403°C) of degradation of matrix with and without nanoparticles shows that the addition of nanofillers to the matrix does not deteriorate the thermal stability of the matrix. This confirms the thermal stability of nanocomposites. Therefore, our study shows that nanocomposites containing G2 nanoparticles are potential candidates for the development of X-ray opaque fabric material.

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Section: Introductionmentioning

confidence: 99%

Preparation, characterization and X-ray attenuation property of Gd2O3-based nanocomposites

2017

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A review on polymer nanocomposites as lead-free materials for diagnostic X-ray shielding: Recent advances, challenges and future perspectives

Jayakumar,

Saravanan,

Philip

2023

Hybrid Advances

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Development of heavy mineral filler based FRP composites for (low energy) radiation shielding application

Jahan,

Hossain,

Sayeed

et al. 2024

Radiation Effects and Defects in Solids

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Attenuation of ⁶⁰Co gamma rays by barium acrylic resin composite shields

Cited by 5 publications

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Preparation, characterization and X-ray attenuation property of Gd2O3-based nanocomposites

Preparation, characterization and X-ray attenuation property of Gd2O3-based nanocomposites

A review on polymer nanocomposites as lead-free materials for diagnostic X-ray shielding: Recent advances, challenges and future perspectives

Development of heavy mineral filler based FRP composites for (low energy) radiation shielding application

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Attenuation of 60Co gamma rays by barium acrylic resin composite shields

Cited by 5 publications

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Preparation, characterization and X-ray attenuation property of Gd2O3-based nanocomposites

Preparation, characterization and X-ray attenuation property of Gd2O3-based nanocomposites

A review on polymer nanocomposites as lead-free materials for diagnostic X-ray shielding: Recent advances, challenges and future perspectives

Development of heavy mineral filler based FRP composites for (low energy) radiation shielding application

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Product

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Attenuation of ⁶⁰Co gamma rays by barium acrylic resin composite shields